@article { author = {Alian, Fatma and Attia, Manal}, title = {PHYSIOLOGICAL STUDIES ON JERUSALEM ARTICHOKE 1- PRODUCTIVITY AND QUALITY OF JERUSALEM ARTICHOKE IN THE NEW RECLAIMED LANDS.}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1607-1617}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85760}, abstract = {A field experiment was carried out in sandy soil in EL-Kattba, Manofya Governorate Egypt, during the successive growing seasons of 2007 and 2008 on Jerusalem artichoke. The main objective of this investigation was to study the effect of cultivars (Local and Fusaeu ) and two planting dates(15th April and 15th May ) with two harvesting dates (15th Nov. and 15th Dec.) on vegetative growth , total yield , marketable yield and its components of Jerusalem artichoke. The results indicated that Local cultivar showed higher foliage (plant height) than Fusaeu, but there was no significant effect on number of lateral branches / plant .In addition, Local cultivar showed significant increases in total yield and its components and tuber contents of dry matter, inulin and total sugar compared with Fusaeu . Concerning planting dates, results showed that the planting on 15th of April increased significantly the vegetative growth parameters, total yield and its components, and tuber contents of dry matter, inulin and total sugar in comparison with planting on 15th May. Regarding the harvest date, data revealed a positive effect of tubers harvest on 15th of Nov. on total yield and its components, and tuber contents of dry matter, inulin while total sugar decreased compared with tubers harvest on 15th Dec.   The interactions between cultivars and planting dates showed that Local cultivar and planting on 15th of April increased significantly the vegetative growth, total yield and chemical constituents of tubers under sandy soil conditions .Also, Local cultivar tubers harvested on 15th of Nov. produced higher significant total yield and its components, and tuber contents of dry matter, inulin while total sugar decreased compared with tubers harvested on 15th of May. The interactions among cultivars, planting dates with harvesting dates, showed that the Local cultivar planted on 15th of April and harvested tubers on 15th of Nov. produced higher significant increases in yield parameters and chemical constituents of tubers under sandy soil conditions.      Finally, it could be concluded that the optimum planting dates of Jerusalem artichoke (Local cultivar) was on 15th of April and the ideal harvesting date was on 15th of Nov. for a highly production and quality of tubers under sandy soil.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85760.html}, eprint = {https://jpp.journals.ekb.eg/article_85760_9810f07c575a5a4ee1b6fcc756722288.pdf} } @article { author = {Attia, Manal and Alian, Fatma}, title = {PHYSIOLOGICAL STUDIES ON JERUSALEM ARTICHOKE 2- EFFECT OF HARVESTING DATES, WRAPPING FILM AND STORAGE TEMPERATURE ON QUALITY ATTRIBUTES OF JERUSALEM ARTICHOKE (LOCAL CULTIVAR) DURING STORAGE.}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1619-1631}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85761}, abstract = {These experiments were carried out during two successive seasons 2007/2008 and 2008/2009 on Jerusalem artichoke local cultivar. Plants were grown at Katatba Menofya Governorate under sandy soil and drip irrigation system. Planting date was 15th of April and tubers were harvested at 15th of November and 15th of December in the two seasons, to study the yield, physical, chemical changes happened in tubers during harvesting date to determine the proper stage of harvesting. Effect of wrapping film and storage temperatures (0 °C, 5 °C and 10 °C) were examined to improve the storability of tubers. Results indicated that Jerusalem artichoke tubers of Local cultivar harvested on 15th of November was the proper stage of harvesting which showed the higher tuber weight / plant, total yield, marketable yield, dry matter and inulin percentage. However, tubers harvested on 15th December was higher in total sugars percent when compared with those were harvested at15th November. For the wrapping film, the non perforated polypropylene bags (nppb) treatment was the most effective in reducing weight loss. Weight loss was greater in the unwrapped tubers. Wrapping tubers in perforated polypropylene bags gave the lowest decay incidence and maintained dry matter and inulin content during storage. Examining of storage temperature, tubers stored at 0 °C showed the lowest loss in weight and decay percentage and holds more dry matter and inulin content comparing with those stored at 5 or 10 °C. Tubers stored at 10 °C gave the highest loss in weight and decay percentage. Jerusalem artichoke tubers, Local cultivar, harvested on 15th of November and wrapped with ppb and stored at 0 °C resulted in an important improvement in market quality through reduce decay percentage and hold more dry matter and Inulin content and gave tubers with good appearance for 5 months of storage at 0 °C.  }, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85761.html}, eprint = {https://jpp.journals.ekb.eg/article_85761_f1056cfedd7218feec2d608bad368bdb.pdf} } @article { author = {El-Refaie, Amany and El-Deeb, E. and Abo-Kaied, H.}, title = {COMPARATIVE STUDY FOR YIELD AND YIELD COMPONENTS OF SOME FLAX LINES WITH THE TWO COMMERCIAL VARIETIES, SAKHA 1 AND SAKHA 2}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1633-1644}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85763}, abstract = {Two field experiments were conducted at the experimental Farm of Etay El-Baroud, El-Beheira Governorate, Egypt. These trials included forty lines sown in F6 (in season, 2009/10) and F7 generation (in seasons, 2010/11). The objective of this investigation is to compare these lines through two generations with the two commercial varieties, Sakha 1 and Sakha 2 for straw, seed, oil yields and their related traits. These materials were evaluated in a randomized complete block design with three replications at the two previous seasons. Mean squares due to lines were significant for straw weight, seed weight and their components as well as for technological traits, fiber percentage and oil percentage in both seasons. Phenotypic (PCV) and genotypic (GCV) coefficient of variability and broad sense heritability (H%), the slight discrepancy between PCV and GCV for straw weight components (plant height, technical stem length and fiber percentage) and also for seed weight components (oil percentage and 1000-seed weight) were reflected in the high heritability estimates in both seasons for these traits, indicated the possibility of using these yield component traits in selection index technique to achieve further improvement both straw and seed weights by selection for these components.  Concerning mean Performance, out of forty flax lines, five lines, (No. 18, 20, 34, 35, and No. 40) were superior for each seed, oil, straw and fiber yields/fed. Therefore, these five lines may be considered good substitutes for the low yielding ones, Sakha 1 and Sakha 2 in future after evaluation in more locations and years before releasing as a new Egyptian flax cultivar for both straw and seed yields production ( as a dual purpose type). Straw weight per plant was significantly positively correlated with each of plant height, technical stem length, number of capsules per plant and 1000-seed weight in both seasons. Also, plant height exhibited positive correlation with technical stem length in both seasons, indicating that maximization of straw weight per plant may be obtained by selection for these component variables specially plant height and technical stem length. Seed weight per plant, exhibited positive association with oil percentage in both seasons. Whereas, number of capsules per plant was highly positive correlation with 1000-seed weight, indicating the possibility of selection for a genotype as dual purpose type which had high seed weight and high straw components (plant height and technical stem length).}, keywords = {Flax,Comparative study,Yield and yield components,correlation}, url = {https://jpp.journals.ekb.eg/article_85763.html}, eprint = {https://jpp.journals.ekb.eg/article_85763_ee68864f4785c095c1e1939a0a303ebb.pdf} } @article { author = {El-Hosary, A. and Shafshak, S. and ABO-Sherif, M. and EL-Hosary, A. and El-Sherif, S.}, title = {EFFICINCY OF THREE BREEDING METHODS ON TWO BREAD WHEAT CROSSES}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1645-1654}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85764}, abstract = {This study was conducted at the Experimental Farm of the Sids Agricultural Research Station, Agricultural Research Center, Egypt, during 2007/2008, 2008/2009 and 2009/2010 seasons. The objective of this study was; to estimate the efficiency of pedigree, modified bulk and single seed descent methods in two bread wheat populations. The final evaluation of the F5 generation was done during 2009/2010 season. The selected lines were sown in the nested design with three replications. The efficiency of the breeding methods was evaluated on the basis of the following parameters: mean performance results in the first cross indicated that, the differences between breeding methods. The pedigree method expressed significant desirable values for number of spikes per plant, 1000-kernel weight, number of kernels/spike and grain yield/plant than those bulk and SSD method. The pedigree method produced consistently more superior lines for grain yield/plant compared to the best parent and the two checks (Sids1 & Sids12)or the average. The best lines were number 16 (45.80g) , no. 14 (43.22g) number 15 (35.67g) , no. 5(35.55g) and no. 13 ( 34.96g) in pedigree method and no. 6(39.52g) in bulk method. For number of Spikes/plant the results indicated the pedigree method produced more superior lines followed by bulk and then by SSD over lines with 2, 12,14 and 16; 14 and Zero lines, respectively. Regarding to 1000-kernel/weight, 2,3,5,8,10,13,18 and 19;  5; and 2 lines showed, significant overlines for pedigree, bulk and SSD methods, respectively. For number of kernels/spike, one line showed significant high .The lines number 1, 16, and 17 in pedigree breeding method and the line number 1 and 10  in bulk method  gave the highest number of kernels/spike. The mean squares for breeding methods in the second cross were significant for yield and its components. The pedigree method gave the highest values for grain yield/plant, number of spikes per plant and number of kernels per spike. While the bulk method gave the highest value for 1000-kernel weight. While, SSD method exhibited significantly higher for1000-Kernel weight and number of kernels per spike. The pedigree method produced consistently more superior lines compared to the best parent and two cheeks (Sids1 & Sids12)or the average population with no. 7, no.8 ,no. 12, no.13 and no.16; no.3, no.5, no.10 and no.15; no. 9 and no.20 for pedigree, bulk and SSD, respectively. The best lines were number 7 (38.30g), no.8 (48.23g) ,no. 12(40.50g),no.13(37.48g) and number 16 (40.71g) in pedigree method.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85764.html}, eprint = {https://jpp.journals.ekb.eg/article_85764_f0928cb76dd0f40deda336b3aeafa1ee.pdf} } @article { author = {El-Hosary, A. and Shoker, E. and Gomaa, M. and Abo Shrif, M. and Hamouda, M.}, title = {SELECTION FOR EARLINESS, YIELD AND ITS COMPONENTS IN BREAD WHEAT}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1655-1666}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85766}, abstract = {The objective of this study was estimate the response to individual plant selection in early generation through direct and indirect selection for increased grain yield was carried out. The selection intensity of 10 % approximately was used with direct selection of yield and with indirect selection using yield components in wheat, i.e. number of spikes per plant, number of kernels per spike and 1000-kernel weight in gm. In 2009/2010, promising lines in F5 for each criterion were evaluated under flood irrigation at the Sids Agricultural Research Station conditions, Agricultural Research Center, Egypt. The high selected lines (20 lines) from direct and indirect selection for high yielding for each criteria (grain yield/plant "direct selection", number of spikes per plant, number of kernels per spike and 1000-kernel weight in gm "indirect selection") and the two parents also, two checks (Sids 12 and Sids 13) were evaluated in nested design with three replications in each population. In the first population, the selection of high number of grains/spike gave the highest grain yield/plant. In the second population the selection of high number of spikes/plant gave the highest grain yield/plant. The results indicated that selection for indirect selection was more efficient in breeding for word superior yielding F5 lines.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85766.html}, eprint = {https://jpp.journals.ekb.eg/article_85766_f88f89f8f33e82999ed65f5cbfd10c1f.pdf} } @article { author = {Attia, Manal and Saleh, S. and El-Shabrawy, E.}, title = {EFFECT OF ANTI-BROWNING AGENTS AND WRAPPING FILMS ON BROWNING INHIBITION AND MAINTAINING QUALITY OF BABY CORN DURING STORAGE.}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1667-1682}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85768}, abstract = {An experiment was carried out at Kaha Experimental Station, Kalubia Governorate, during 2009 and 2010 seasons, to study the influence of anti-browning agents (ascorbic acid 1% and calcium chloride at 1% ) and wrapping films (polypropylene and stretch ) on reducing browning, maintaining quality and inhibiting  pathogens of baby corn (Zea mays L )ears 321 Tribal hybrid (TH). All studied treatments reduced weight loss, browning, poly phenol oxidase  (ppo) activity, total microbial count and the loss of total sugars comparing with untreated (control) treatment. However, dipping baby corn ears in ascorbic acid (AA) at 1% or calcium chloride at 1% then wrapped with polypropylene film was the most effective treatments in this concern. Baby corn ears treated with 1% ascorbic acid (AA) or 1% Cacl2 then wrapped with polypropylene film did not exhibit any changes in their appearance till 12th day of storage of 5 °C and gave good appearance at the end of storage (15 days), while untreated ears resulted in poor appearance after 9 days of storage.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85768.html}, eprint = {https://jpp.journals.ekb.eg/article_85768_0f7df67cc4db1b279e26509b93b8c806.pdf} } @article { author = {El-Shora, H. and Abd El Malak, Camelia and Habib, S. and Shoueb, Rasha}, title = {ACTIVITY AND CHARACTERISTICS OF MALTASE FROM COTYLEDONS OF MARROWS (Cucurbita pepo L.)}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1683-1691}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85769}, abstract = {Maltase ( EC: 3.2.1.20 ) was isolated from cotyledons of marrow (Cucurbita pepo L.). The enzymewas partially purified by 80% ammonium sulfate and Sephadex G-50 column chromatography. The optimal pH was 6.0. There are two pKa values at 6.0 and 8.0 indicating that there is histidyl residue taking part in enzyme catalysis. The optimal temperature of the enzyme was 50 ᴼC. The activation energy of maltase was 8.0 KJ/mole. The effect of glucose, lactose, maltose, sucrose, starch and dextrin were tested and the enzyme expressed great specificity for maltose . The enzyme did not show any activity with glucose. The two adenosine compounds adenosine monophosphate ( AMP )  and adenosine triphosphate ( ATP ) stimulated maltase activity at both 5mM and 10mM and this may suggest that the maltase-catalyzed reaction is endothermic. Sorbitol, glycerol, sucrose and blue dextran stabilized maltase at 60 ᴼC with different rates. Sorbitol was the best stabilizer followed by glycerol.  }, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85769.html}, eprint = {https://jpp.journals.ekb.eg/article_85769_853f7dd2684018293fe580e35fcb7dd5.pdf} } @article { author = {Abd El-Kader, E.}, title = {EFFECT OF NITROGEN FERTILIZER RATES AND SOME GROWTH REGULATORS TREATMENTS ON SUGAR BEET}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1693-1702}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85770}, abstract = {Two field experiments were carried out at El – Hamoul, Kafr El – Sheikh Governorate in 2009 / 2010 and 2010 / 2011 seasons to study the effect of four nitrogen fertilizer rates (0, 70, 90 and 110 kg N / fed) and five growth regulators treatments (sprayed plants with tap water (control), Mepiquate Chloride (pix) at the concentration of 1000 and 2000 ppm and Indole acetic acid (IAA) at the concentration of 100 and 200 ppm on yield of sugar beet. The experiments were laid out in split plot design.     The obtained results showed clearly that average root / top ratio, sucrose %, potassium %, sodium %, top yield / fed, root yield / fed and sugar yield / fed were significantly affected by nitrogen fertilizer rates in both seasons. Increasing nitrogen fertilizer from 0 to 110 kg N / fed caused 102.14 and 103.53 %, 112.55 and 118.18 % as well as 136.70 and 142.60 % increases in top yield / fed, root yield / fed as well as sugar yield / fed compared to plants grown on the control treatment (no added nitrogen) in 2009 / 2010 and 2010 / 2011 seasons, respectively.     Results recorded indicated that all studied traits were significantly affected by growth regulators treatments in both seasons. Sugar beet plants sprayed with IAA at the concentration of 200 ppm gave the highest top yield / fed 5.75 and 5.86 tons, root yield / fed 27.65 and 28.98 tons as well as sugar yield / fed 4.46 and 4.70 tons compared to other treatments in 2009 / 2010 and 2010 / 2011 seasons, respectively. The interaction effect between nitrogen fertilizer rates and growth regulators treatments was significant on all studied traits in both seasons, except sodium % in 2009 / 2010 seasons. Fertilizing sugar beet plants by nitrogen fertilizer at the rate of 110 kg N / fed and sprayed with IAA at the concentration of 200 ppm gave the highest top yield / fed 7.73 and 7.83 tons, root yield / fed 36.90 and 39.84 tons as well as sugar yield / fed 5.65 and 6.13 tons as compared to all other this interaction treatments in 2009 / 2010 and 2010 / 2011 seasons, respectively.  Generally, it could be recommended that fertilized sugar beet plants with 110 kg N / fed and sprayed by IAA at the concentration of 200 ppm increased root and sugar yields/ fed at El-Hammoul, Kafer El-Sheikh Governorate conditions.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85770.html}, eprint = {https://jpp.journals.ekb.eg/article_85770_13e8868f402290cdc3c0105b20ebf7a1.pdf} } @article { author = {Attia, A. and Badawi, M. and Seadh, S. and El-Hety, S.}, title = {RESPONSE OF GROWTH AND PETAL YIELD OF SAFFLOWER TO SOWING DATES, NITROGEN FERTILIZER,LEVELS AND TIMES OF FOLAIR APLICATION WITH NATURAL GROWTH PROMOTERS "MELAGROW"}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1703-1716}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85772}, abstract = {Two field experiments were conducted at the Experimental Station, Faculty of Agriculture, Mansoura University, during the two successive winter seasons of 2009/2010 and 2010/2011. The main objectives of this study were  determining the effect of sowing dates (1st Sept., 1st Oct. and 1st Nov.), nitrogen fertilizer levels (40, 60 and 80 kg N/fed) and time of foliar application with "Melagrow" as natural growth promoter (without, one and two times) on growth and petal yield of safflower (Carthamus tinctorius, L.) cv. Giza 1. The obtained results could be summarized as follows: Intermediate sowing date of safflower (1st October) significantly surpassed other sowing dates (1st September and 1st November) in all studied growth and petal yield characters, except Crop growth rate "CGR", Relative growth rate "RGR" and Net assimilation rate "NAR" which produced from sowing on 1st September in both seasons.  Fertilizing safflower plants with 80 kg N/fed significantly increased all studied growth and petal yield and markedly recorded the highest values of these characters in both seasons. However, application of 40 kg N/fed produced the lowest values of all studied characters in the two growing seasons. Foliar application with Melagrow( as a natural growth promoter) twice after 30 and 70 days from sowing significantly recorded the highest values of studied growth and petal yield characters, exclusion leaves/stem and branches ratio, CRG, RGR and NAR in both seasons. While, application of Melagrow one time after 30 days from sowing came in the second rank in this respect in both seasons. On the other hand, the lowest values of all growth and petal yield characters were resulted from the control treatment (without foliar application) in both seasons. From the obtained data in this study, it can be concluded that sowing safflower on 1st October and mineral fertilizing with 80 kg N/fed beside twice foliar application with Melagrow as a natural growth promoter in order to maximizing its growth and petal yield under the environmental conditions of Dakahlia Governorate, Egypt.}, keywords = {safflower,Carthamus tinctorius L,sowing dates,Nitrogen fertilizer levels,times of foliar application with natural growth promoters,Melagrow foliar application times,Growth,petal yield}, url = {https://jpp.journals.ekb.eg/article_85772.html}, eprint = {https://jpp.journals.ekb.eg/article_85772_d08fee73f19af84d193ee6efc9ebafb6.pdf} } @article { author = {Aboshama, H.}, title = {ANTHER CULTURE AND PLANT REGENERATION IN CITRUS (Citrus volkameriana ).}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1717-1729}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85773}, abstract = {Development of an efficient and cost-effective doubled haploid production system in Citrus volkameriana is the prerequisite for the application of doubled haploid technology in a practical breeding program. An improvement of the protocol for haploid induction through anther culture of Citrus volkameriana was achieved following the evaluation of a number of the factors affecting androgenesis. Two types of media were tested for response of anther culture. In induction cultures, N6 Chu (1978) basal medium was more effective than Murashige and Skoog (1962). The influence of 2,4-dichlorophenoxyacetic acid (2,4-D) and benzyladenine (BA) and three temperature pre-treatments (4oC, 25oC, 32oC) on the floral buds with respect to anther culture of C. volkameriana . As well as, the effect of AgNO3 concentration on Volkamer” lemon embryogenesis was investigated. The highest percentages of anthers producing embryoids (47.50) was produced on N6 medium at the concentration of 2.0 mg/l 2,4-D and 0.5 mg/l BA together. Pre-treatment of temperatures at 4oC and 25oC were more favorable for embryo production than 32oC. Silver nitrate concentrations had a strong influence on embryo yields where a 2.0 mg /l significantly gave a higher percentages of anthers (65.00%)  producing embryoids compared with 1.0 mg /l or 0.0 mg/l (55.00, 45.83%, respectively). Regeneration of androgenic haploid plantlets from C. volkameriana is reported in this study. As embryogenesis proceeded, the normal pattern of development was observed, including heart-shape, torpedo and cotyledonar embryos.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85773.html}, eprint = {https://jpp.journals.ekb.eg/article_85773_b36f1559fee531164ed3aaabfb9cd106.pdf} } @article { author = {Shamloul, G. and Askar, E.}, title = {GENETIC BEHAVIOR OF YIELD AND QUALITY TRAITS IN SWEET MELON ESMALAWI VARIETY (CUCUMIS MELON –VAR AGYPTIACUS)}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1731-1739}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85774}, abstract = {The highly polymorphic in sweet melon for many commercial traits providing seemingly endless possibilities for genetic improvement. The main objective of current study was to estimate of genetic behavior and obtain the genetic parameters of sweet melon advanced lines (Cucumis melo L. var. aegyptiacus). Eight inbred lines were developed from previous study using a pedigree selection method. The selected inbred lines were crossed according to factorial mating design generated 16 crosses. The additive genetic variance played an important role in the inheritance of yield and most yield component traits. Female variance (σ2f) appeared to be larger than male variance (σ2m) for the most quality traits except for taste. The magnitudes of additive genetic variance (σ2A) were lower than their non-additive including dominance (σ2D) for all studied yield traits, except for number of male flowers per plant and fruit length. The MAGD105, MAGD106 and MAGD107 are promising lines that could be used in farther improvement programs.}, keywords = {Cucumis melo var. aegyptiacus,Heterosis,Genetic variance,fruit quailty}, url = {https://jpp.journals.ekb.eg/article_85774.html}, eprint = {https://jpp.journals.ekb.eg/article_85774_f664f3262d49aa580d2cf92bda8a317e.pdf} } @article { author = {Kamal, A. and Ghanem, k.}, title = {RESPONSE OF CAPE GOOSEBERRY PLANTS (Physalis peruviana L.) TO SOME ORGANIC AMENDMENTS AND FOLIAR SPRAY WITH CHITOSAN}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1741-1759}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85775}, abstract = {Two field experiments were conducted in a private farm at Al-Nubaria region, Behira Governorate, Egypt, during the successive seasons of 2009 and 2010, to study the effect of some organic manures, i.e., poultry, sheep and farmyard manures as well as three concentrations of chitosan foliar treatments (0, 400 and 800 ppm) on growth, chemical composition, yield and quality of Cape gooseberry plants cv. “Balady” under an organic farming system. The main results could be summarized as follows: -    The highest and significant values of plant height, number of branches, fresh and dry weights of Cape gooseberry plants was obtained with the addition of sheep manure combined with foliar application of chitosan at 800 ppm. -    N, P and K contents as well as total chlorophyll concentration of Cape gooseberry leaves significantly increased by the addition of sheep manure as a soil amendment combined with foliar application of chitosan at 800 ppm. -    Application of sheep manure combined with foliar spraying with chitosan at 800 ppm resulted in the highest significant values of fruit setting, number of fruits per plant, average fruit weight and total yield. -    Cape gooseberry plants, which fertilized with sheep manure combined with 800 ppm chitosan foliar application gave the highest values of reducing sugars, carotenoids, polyphenolic substances and vitamin C content of fruits, while the addition of farmyard manure combined with chitosan or without treatments (control) gave the lowest one. This study demonstrated that it is possible to produce highest growth, yield and quality of Cape gooseberry plants by applying sheep manure as an organic amendment in combination with foliar application of chitosan at 800 ppm during the organic production system under Al-Nubaria conditions.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85775.html}, eprint = {https://jpp.journals.ekb.eg/article_85775_92958f210fa7e2ff659ed322ef1cec29.pdf} } @article { author = {Omar, A. and EL Sayed, A. and Abd EL-Rahman, Magda and El-Hag, Walaa}, title = {EVALUATION OF SOME CULTIVARS AND LINES OF BREAD WHEAT UNDER LOW INPUT CONDITIONS}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1761-1771}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85776}, abstract = {The field experiment was conducted at Sakha Agricultural Research Station, ARC, Egypt during 2008/09 and 2009/10 wheat growing seasons. Eight genotypes of bread wheat were evaluated under irrigated as well as water stress with nitrogen fertilizer rates; 25, 50 and 75 kg N/fad. This study was performed as split-split plot design using four replications. Measurements were taken on grain yield and related traits. The stress susceptibility index was calculated. The results show that irrigation regime had highly significant effects on all characters, except for kernel weight in the second season. Moreover, all characters differed significantly among N application rates at active except for kernel weight in the second season. Highly significant genotype differences occurred for all characters in both seasons. Sids 12 recorded the highest grain yield in both seasons. Plants fertilized with 75 kg N/fad under normal irrigation recorded the highest grain yield compared with those under stress treatment in the first season. Sids 13 recorded the highest number of spikes/m2 under normal irrigation in the first season. Line 2 recorded the heaviest kernel weight under normal irrigation without differences with Line 1 and Gemmeiza 11 under the same condition of irrigation in the first season. The highest number of kernels per spike was obtained from Sids 12 under normal irrigation in 2008/09 season. Sids 12, Shandaweel 1 and Sids 13 recorded the highest grain yield under normal irrigation in 2008/09 season. Sids 12 recorded the highest number of kernels per spike under 75 kg N/fad in the second season. Line 2, Sakha 93, Giza 168 and Sids 13 were the most tolerant genotype showing least reduction in grain yield (the lowest value of stress susceptibility index). In conclusion, these cultivars could be used in wheat breeding program to develop new bread wheat cultivars tolerant to water stress.}, keywords = {Wheat,genotypes,Irrigation treatments,N fertilizers rates,yield,yield components,stress susceptibility index}, url = {https://jpp.journals.ekb.eg/article_85776.html}, eprint = {https://jpp.journals.ekb.eg/article_85776_bc91dfa4397cbc35927613adce76488b.pdf} } @article { author = {El-Awady, Aml and Ezzat, A. and El-Banna, E.}, title = {EFFECT OF VARIOUS APPLICATION TECHNIQUES OF ESSENTIAL OILS ON STORAGE OF POTATO TUBER AT DIFFERENT TEMPERATURES}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1773-1782}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85778}, abstract = {Two storage experiments were carried out at Mansoura Horticultural Research Station, Egypt, during the two successive summer seasons of 2007 and 2008. to study the effect of various application techniques (fumigation, dipping and spraying) of natural essential oils; thyme (Thymus vulgaris, Labiatae) and caraway (Carum carvi, Apiaceae) at cold storage (10°C) and ambient temperatures (35/15°C) (day/night) as well as chloropropham (CIPC) on storability, quality and processing of potato (Solanum tuberosum L. cv. Lady Rosetta) . The obtained results revealed that all storage treatments differed significantly in all studied characters. Potato tubers treated with thyme or caraway oils and stored at 10°C or ambient temperature showed the lowest significant values of sprouting and weight loss percents in both seasons of the study. Application of thyme oil at cold storage or ambient temperature resulted in the highest value of dry matter as compared with other treatments, in both seasons. Cold storage had significant effect on reducing sugars and total free amino acids, in both seasons. Tubers of control treatment were of the highest significant gibberillic acid content and of lowest significant abscisic acid followed by cold storage and Chloropropham (CIPC), respectively, relative to all treatments in both seasons. All essential oils/ambient temperature or cold storage treatments gave the best quality processing of chips and French fries, i. e., color, taste and crispiness. Application of caraway or thyme oils by fumigation technique/ambient temperature achieved the highest net return in comparison with other treatments. The study suggests that using thyme or caraway oils by fumigation technique on potato tubers at ambient temperature or cold storage as the best safe, natural, good quality, high-benefit treatments and easy to apply in practice as alternatives to chemical retardants.}, keywords = {Solanum tuberosum,Essential oils,fumigation,ambient temperature,net profit}, url = {https://jpp.journals.ekb.eg/article_85778.html}, eprint = {https://jpp.journals.ekb.eg/article_85778_2bf1b61ed3213d46ce56b7570e7eff2a.pdf} } @article { author = {El-Labban, H. and Gad, A. and Sadek, F. and El-Serafy, Rasha}, title = {IMPROVING SOME ECONOMIC TRAITS OF CARAWAY (Carum carvi, L.) THROUGH MASS SELECTION}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1783-1790}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85779}, abstract = {The present study was carried out at the Experimental Farm of the Faculty of Agriculture, Tanta University, during three successive winter seasons (2006/2007, 2007/2008 and 2008/2009). In order to improve caraway population in growth characters and fruit yield; two cycles of mass selection were done. The base population (C0) from the local variety (Balady) seeds were sown on rows 75 cm apart and 50 cm between hills. At maturity stage, selection was done on the basis of high yielding 20% of the plants. Fruits of previous selected plants were bulked together and sown to raise the next generation (C1). At the end of C1 and C2 the selection intensity was raised to about 40%. Each selected plant fruits were weighted and oil content was determined. The results of this study showed that mass selection led to increase homogeneity of plant height and number of branches / plant with reduces the variability. Concerning fruit yield the results also, declared that the fruit yield/ plant was increased from C0 to C2, although the decreased of volatile oil percentage from C0 to C2, without significant differences between the three population. In the future more than two cycles are needed for continuous improvement in yield/plant and the percentage of volatile oil.}, keywords = {caraway,Carum carvi,L,mass selections,breeding,Vegetative growth,fruit characters and oil content}, url = {https://jpp.journals.ekb.eg/article_85779.html}, eprint = {https://jpp.journals.ekb.eg/article_85779_442379af89b0a674b2e044012f34fb0b.pdf} } @article { author = {El-Hosary, A. and Hamam, G. and Mahmoud, S. and El-Areed, Sh.}, title = {YIELD STABILITY AND ITS COMPONENTS FOR SOME PROMISING LINES DERIVED FROM INTERSPECIFIC HYBRIDIZATION IN WHEAT}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1791-1803}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85781}, abstract = {Some promising bread wheat lines (Triticum aestivum vulgare L.) generated from interspecific hybridization program at Sids Agricultural Research Station, ARC, Egypt and two standard checks cultivars (Sakha 94 and Sids 1) were evaluated for grain yield performance and its components and phenotypic and genotypic stability across ten environments represent  North, Middle and South Egypt. Results of the combined analysis of variance for the traits under study showed highly significant effects for lines, environments, and line by environment interaction. The means of grain yield for individual lines ranged from 2.42 to 3.18 Kg/plot. When the phenotypic grain yields were subjected to stability analysis against an environmental index according to Eberhart and Rusell (1966), the regression coefficients for individual lines ranged from 0.51 to 1.17. Among the lines tested, lines no. 1, 2, 3, 5, 6, 9, 21 and 22 characterized-on phenotypic stability lines across all environments. Regarding the genotypic stability according to Tai (1971), with probability 90%, lines number 3 and 7 have genotypic stability for grain yield under the ten environment.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85781.html}, eprint = {https://jpp.journals.ekb.eg/article_85781_e19f584be6fd71ef460c1f050bbbf9d8.pdf} } @article { author = {Ibrahim, E.}, title = {RESPONSE OF SOME EGYPTIANS SWEET MELON (Cucumis melo var. Aegyptiacus L.) CULTIVARS TO WATER STRESS CONDITIONS}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1805-1814}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85782}, abstract = {Drought is a wide-spread problem seriously influencing sweet melon (Cucumis melo var. Aegyptiacus L.) production and quality. Therefore, the identification or development of tolerant genotypes is of high importance for incorporating in sweet melon production. Hence, two field experiments were conducted in a clay loam soil at Baramoon Experimental Farm, Dakahlia Governorate, Egypt  during the two summer seasons of 2009 and 2010, to evaluate five sweet melon cultivars (Shahd El-Dokki, Ananas El-Dokki, Ismaelawi, Kahera-6 improved, Albasosi) under regular irrigation and stress conditions using a split plot design with three replicates. Drought conditions were started after first irrigation and created by reducing the frequency of irrigation by one half compared with regularly irrigated plants, i.e., missing alternate irrigation. Results indicated that exposing the sweet melon cultivars to water stress led to significant decreases in fruit weight, fruit length, fruit width, flesh fruit thickness, total yield per plant and Leaf relative water content in both seasons. Whereas, water deficit caused significant increases in total soluble solids in both seasons. The tested cultivars markedly varied among them in all estimated characters in both seasons. The interaction between irrigation levels and cultivars had significant effects on all traits under study. Cultivars with the highest yield and yield components under non-stress conditions had the highest yield and yield components under stress conditions, and this was true in both seasons. On the basis of the drought resistance indices (drought susceptibility index, relative yield reduction and relative yield values), Kahera-6 improved was relatively stress susceptible, whereas Albasosi was more tolerant and stable cultivar so; this cultivar could be further tested for their drought confirming characteristics.}, keywords = {Cucumis melo,Sweet melon,cultivars,Water stress,drought resistance}, url = {https://jpp.journals.ekb.eg/article_85782.html}, eprint = {https://jpp.journals.ekb.eg/article_85782_f3f114e0019cdc60f324d389de524dd1.pdf} } @article { author = {El-Awady, Aml and Ghoneem, K.}, title = {NATURAL TREATMENTS FOR EXTENDING STORAGE LIFE AND INHIBITION FUNGI DISEASE OF JERUSALEM ARTICHOKE FRESH TUBERS}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1815-1831}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85783}, abstract = {Two storage experiments were carried out at Mansoura Horticultural Research Station, Agriculture Research Center, Egypt, during of 2009 and 2010 seasons, to study the effect of natural treatments of plant extracts for prolonging life of Jerusalem artichoke fresh tubers during storage and to control common fungi diseases, i. e., clove (Syzygium aromaticum L. Merr & Perry.), cumin (Cuminum cyminum L.) and garlic (Allium sativum L.) at different temperature. Results of experiments can be summarized as follows: Tubers treated with cumin or clove extracts and stored at 2 ºC or ambient temperature (average: 25/10 ºC day/night) suppressed the incidence of sprouting percentage, and decreased weight loss, decay percents, compared with the control (2 ºC). Tubers treated with!garlic extract and stored at 2 ºC slightly increase dry matter content. However, mncrease"of carbohydrates and inulin were found as a result of use garlic and cumin extract at ambient temperature. Tuber rots caused by microorganisms during the growing season or during refrigerated or field storage were the most émportant diseases of Jerusalem artichokes in Egypt. Mucor sq., Fusarium oxysporum Schlecht, Fusarium solani Mart Sacc. Desm., Rhizoctonia solani Kühn, Rhizopus stolonifer Ehrenb ex Link and Sclerotium rolfesii Sacc. were!isolatud örom votted tissues and found to cause rots of Jerusalem tubers. In vitro antifungal acti~ity of íuthanol-water extracts of three medicinal plants, clove, garnic and cumin was investigatmd against Jerusalem tuber rots pathogenic fungi. In vitro antifungal agtivity test shïwed a high grïwth inhibition at concenôration (¸4 %) of each°qlant(extract.  The study6óuggmsts using plant extracts as natural treatments fïr(kogreasing storability and quality of Jerusalem artichoke fresh tubers and inhibition of fungi diseases.}, keywords = {Jerusalem artichoke,natural tveatments,plant extract,antifungi,inulin}, url = {https://jpp.journals.ekb.eg/article_85783.html}, eprint = {https://jpp.journals.ekb.eg/article_85783_c0121c1b2419247c888fdd27ac7b7ee1.pdf} } @article { author = {Alian, Fatma and Abd El-Malak, Violette}, title = {THE EFFICANCY OF SOME CULTIVARS AND MEDICINAL PLANT EXTRACTS ON GROWTH, PRODUCTIVITY AND CONTROL OF (Spodoptera littoralis) BOSID ON SWEET POTATO PLANTS.}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1833-1845}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85784}, abstract = {         This study was conducted at Horticulture Research Station of El-  Baramon, Dakahlia Governorate in both seasons (2007/2008 and2008/ 2009) to study the effect of six spraying treatments with some aromatic of plant extracts. Namely ethanol extract of Thyme (T1),  aqueous extract of Thyme (T2), ethanol extract of Basil (T3), aqueous extract of Basil (T4), ethanol extract of Lavender (T5), and aqueous extract of Lavender (T6)   on the control of Spodoptera littoarlis and plant growth, yield and its component of three sweet potato cultivars "American 93", "Beure Gard" and "Abeese". The activity of some plant extracts against the cotton leaf worm was evaluated and expressed as the reduction in worm infestation by applying three spraying applications with an interval of a month during the two summer seasons of 2008 and 2009. The water extracts of a defected result in both season and the "Abeese" was the lowest infestation.        Regarding the effect of cultivars on growth parameters data showed that "Abeese" significantly produced higher leaf area, total and marketable yields, average fresh weight tuber root and tuber dry matter precentage compared with the other two cultivars. While "American 93" exceeded the other two cultivars in number of leaves and branches, main stem length and starch percentage in tuber in both seasons. Data revealed that the canopy dry weight per plant was higher in "Beure Gard" as compared with two cultivars. In general, results indicated that the aqueous extract of basil increased significantly all growth parameters, i, e, leaf area, number of leaves and branches and main stem length, yield and its component (total yield, marketable yield, and average fresh weight of tuber root) and dry matter percentage of tuber root, compared with other treatments applications. In this respect, results showed that "Abeese" plants treated with the aqueous extract of basil gave the highest values in all growth characters, yield and its component and dry matter percentage of tuber root.         The combined treatments of cultivars and plant extracts generally were more effective with using the aqueous extract of basil on "Abeese" where this combination showed the highest values of leaf area, yield and its component and tuber root dry matter percentage, while the same extract increased number of leaves per plant, main stem length (cm) and starch percentage when it was used an "American 93" plants. Finely, it is recommended that the "Abeese" plants treated with the aqueous extract Basil produced the highest values of plant growth, yield and its component, dry matter and showed the lowest infestation of Spodoptera litoralis}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85784.html}, eprint = {https://jpp.journals.ekb.eg/article_85784_1a37ad6796af11e82666ade61b807f7d.pdf} } @article { author = {Hamza, Ebtsam}, title = {AN EFFICIENT PROTOCOAL FOR CLONAL PROPAGATION OF THE RECENTLY INTRODUCED SWEETENER PLANT (STEVIA REBAUDIANA BERTONI) IN EGYPT}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1847-1860}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85785}, abstract = {Stevia rebaudiana Bertoni, is a perennial herb belongs to the Asteraceae family. The plant has strong sweet taste and very few calories. It is estimated to be 300 times sweeter than sugar cane. Seed germination is notably very poor due to infertile small size seeds and their self incompatibility and lower number of vegetative cutting. It is a newly introduced plant in Egypt, So, the present investigation was carried out to standardize a protocol for in vitro masspropagation and acclimatization of Stevia rebaudiana plants. In establishment stage MS medium supplemented with 0.25mg/l BAP or 0.25mg/l Kn in combination with PP333 enhanced shoot number significantly (10.00 and 5.50 shoots/explant, respectively). In multiplication stage, adding growth retardant (PP333, CCC and PEG) as well as AC positively affected growth parameters. In rooting and acclimatization stages auxins especially IAA and NAA played an important role in combination with PP333 and AC.}, keywords = {Stevia rebaudiana,tissue culture,BAP,Kn,IAA,NAA,2,4-D,PP333,CCC,PEG,AC,shoot tip necrosis and acclimatization}, url = {https://jpp.journals.ekb.eg/article_85785.html}, eprint = {https://jpp.journals.ekb.eg/article_85785_0909990de72ecfca5cce26e47973454e.pdf} } @article { author = {Gomaa, M. and Allam, S. and El-Gedwy, El.}, title = {DETERMINATION OF THE CRITICAL PERIOD OF WEED CONTROL IN MAIZE GROWN UNDER DIFFERENT PLANT DENSITIES}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1861-1878}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85786}, abstract = {Tow field experiments were carried out during the two successive summer seasons of 2010 and 2011 at the Agric. Res. and Exp. Center of Fac. Of Agric. Moshtohor to study the effect of five plant population densities (20, 22, 24, 26 and 28 thousand maize plants per fed.) and seven periods for weed control (un-weeded control (1), weed control at 20 (2), 20+35 (3), 20+35+50 (4), 20+35+50+65 (5), 20+35+ 65+80 (6) and 20+35+80+95 days after sowing (7)) on growth, yield and its components of maize, associated weeds as well as the net economic return of maize. The obvious results of this investigation can be summarized as follows: Increasing plant population density from 20 to 28 thousand plants /fed. significantly decreased total number and fresh weight of removed weeds in the first season, total fresh and dry weights of weeds at harvest, number of green leaves / plant, leaf area / plant, stem diameter, ear length, number of grains / ear, ear weight, shelling %, 100-grain weight and grain yield / plant in both seasons. On the other hand, plant height, leaf area index, number of ears /fed., Stover yield, nitrogen up-take and protein yield / fed. were significantly increased. Generally, the greatest grain and biological yields / fed. were results from maize planting by 26000 plants/ fed. This was true in the two growing seasons. Un-weeded check significantly decreased all these characters except total fresh and dry weights of weeds at harvest compared with weed removal even once after maize emergence. The maximum grain and biological yields/ fed. were produced from planting maize under weed control at 20, 35, 50 and 65 days after sowing. The critical period of weed control (CPWC) in maize crop based on 5% acceptable yield loss was 20 - 35 days after sowing. The highest values of leaf area index and stover yield / fed. were recorded from planting maize at the highest density under weed control by treatment 5. While, the lowest plant density under the same weed control gave the maximum values for No. of green leaves / plant, leaf area / plant, ear length, No. of grains /ear, 100-grain weight, ear weight and grain yield / plant in the two growing seasons. Meanwhile, the greatest maize grain and biological yields / fed. were resulted from maize planting by 26000 plants / fed. under the same weed control (weed control at 20 +35 + 50 + 65 days after sowing). The best treatment was that planting 24000 maize plants / fed. under weed control by either treatment 5 or 6 in the first season and planting 26000 maize plants /fed. with weed control by treatments 5 in the second season, where the net farm return valued 1945.2 and 2981.0 L.E. / fed. in the first and second seasons respectively.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85786.html}, eprint = {https://jpp.journals.ekb.eg/article_85786_6696473d6c3cba61ad901ffd9b8098f9.pdf} } @article { author = {Kandil, A. and Sharief, A. and Abd El- Atif, A.}, title = {GERMINATION ENCOURAGEMENT OF SOME POTATO SEED CULTIVARS}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1879-1889}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85789}, abstract = {The present research was carried out at experimental station of faculty of agriculture, Mansura University Dakahlia Governorate, Egypt, during successive season of 2011 to study the effect of some plant growth regulators treatments i.e. control, IAA at concentration of 6 ppm, GA3 at concentration of 10 ppm, IAA at 3 ppm + GA3 at 5 ppm and IAA at 6 ppm + GA3 at 10 ppm,  and its soaking time i.e. at (10 minutes, 20 minutes and 30 minutes on some germination and vegetative parameters of some potato (Solanum tuberosum L.) cultivars i.e. Cara, Draga and  Spunta.The main results could be summarized as follows: Concerning cultivars performance, results showed that Cara cultivar recorded highest germination index followed by Spunta cultivar without significant differences between them. Draga cultivar recorded tallest plant, highest fresh weight and dry weight in gm/plant followed by Cara cultivar for plant height only and followed by spunta for fresh and dry weight without significant differences between them. Regarding to plant growth regulators effects, the results indicated that there are a significant differences between growth regulators treatments on germination index, mean germination time, plant height, fresh and dry weight of tubers.  Highest values of germination index percentage, plant height and fresh and dry weight of tubers were obtained from soaking tubers in GA3 at 10 ppm plus IAA at 6 ppm. While, soaking tubers in GA3 at concentration of 10 ppm produced highest value of mean germination time. Regarding to the effect of soaking time of growth regulators, results clearly indicated that there is a significant differences between times of soaking on fresh weight per plant. Soaking tubers for 30 minutes produced highest values of fresh weight followed by soaking for 20 minutes without significant differences between them. The interaction among cultivars and growth regulator treatments recorded significant differences on mean germination time, fresh weight and dry weight. The objectives of this work were aimed to evaluate the effect some growth regulators, soaking times and their interactions on encouragement germination capacity of some potato tuber cultivars.}, keywords = {Potato cultivars,growth regulators,germination index and vegetative parameters}, url = {https://jpp.journals.ekb.eg/article_85789.html}, eprint = {https://jpp.journals.ekb.eg/article_85789_c9dffc502da529a1899d0833d673641a.pdf} } @article { author = {EL-Sayed, Hala and El-Morsy, A. and EL-Metwally, H.}, title = {RESPONSE OF POTATO (Solanum tuberosum L.) GROWTH, YIELD AND STORABILITY TO SOME ORGANIC MANURE RATES AND FOLIAR SPRAY OF SOME MACRONUTRIENTS: 1-VEGETATIVE GROWTH, YIELD AND YIELD COMPONENTS}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1891-1906}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85790}, abstract = {Two field experiments were conducted on potato (Solanum tuberosum L.) Spunta cv plants during the winter seasons of 2008/2009 and 2009/2010 at Kafre Meet Faris village near El-Mansoura, Dakahlia Governorate, Egypt, tostudy the effect of organic fertilizer rates (20, 30 and 40 m3/fed) and some inorganic fertilizers (NPK) levels (100%, 75% and 50% from recommended dose), either alone or in combination with foliar spray with some macronutrients sources (Hi-Fertil 1 and Ferty More) on the plant growth, yield, and yield components. The results showed that the plants fertilized with 40 m3/fed. farmyard manure (FYM) followed by 30 m3/fed. significantly increased plant stem length, number of leaves/plant, leaf area/plant and foliage dry weight/plant as well as average of tubers weight/plant and total yield.      Increasing the supplied NPK level up to 100% from recommended level caused significant increases in the most vegetative growth parameters.Also, tubers weight/plant, marketable yield and total yield were increased significantly.  Also, the results indicated that the plants sprayed with Hi-Fertil 1(19-19-19, NPK), had a significant effect in most vegetative growth parameters while, plants sprayed with Ferty More (5-3-43, NPK) resulted in significant increases in foliage dry weight/plant, tubers weight/plant, marketable yield and total yield.  In general, the best results were obtained by using 40 m3 FYM, 50% NPK level and foliar spray with Ferty More (5-3-43, NPK) followed by the interaction among  40 m3 FYM, 50% NPK level and foliar spray with Hi-Fertil 1(19-19-19, NPK). These treatments achieved increases in tubers weight/plant total yield and marketable yield as well as decreasing unmarketable yield. Therefore, these treatments could be recommended for raising productivity, improving quality of potato and will also decrease the pollution of environment under the conditions of El-Dakahlia Governorate.}, keywords = {potato,Solanum tuberosum,organic farming,farmyard manure,FYM,Mineral fertilizers,NPK,foliar application,Foliar fertilization,Vegetative growth,yield}, url = {https://jpp.journals.ekb.eg/article_85790.html}, eprint = {https://jpp.journals.ekb.eg/article_85790_0d6c5a38406937d19cc748c9f3dc29c5.pdf} } @article { author = {Hagrus, A. and Zayed, B. and Doula, N. and Zayed, A.}, title = {EFFECT OF NITROGEN AND POTASSIUM LEVELS ON YIELD AND YIELD COMPONENTS OF SOME RICE GENOTYPES UNDER SALIN SOILS.}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1907-1917}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85791}, abstract = {Integrating rice crop management involving using salt tolerant variety and proper cultivation is the main strategy to increase rice production under saline soils. Two field Experiments were conducted during 2006 and 2007 Rice growing seasons at the research farm of El-Sirw Agricultural Research Station Damietta Governorate, Egypt. The experiments were conducted to study the effect of three nitrogen levels o, 35 and70 kg N/fed and three potassium levels o, 24, 48.kgK2O/fed and their interaction on growth yield and its components of some rice genotypes (SK2046H or EHR1) (SK2034H or EHR2) i.e. hybrid ones and Giza 178 i.e. inbred one under saline soil conditions. Split – split plot design with four replications was used in the experiments , the varieties were distributed in the main plots the sub- plots were allocated to three nitrogen rates the sub plot were devoted to three potassium rates.   The main obtained results could be summarized. The nitrogen levels had positive and significant effects on plant height, tiller number, panicle length, panicle number, filled grain / panicle, panicle weight, 1000 – grain weight, grain yield and straw yield. All rice cultivar significantly responded to nitrogen fertilizer up to 70 kg N/fed. Potassium fertilizer significantly increased rice growth, yield components and rice grain yield in both seasons. Rice response to potassium fertilizer was significantly up to higher potassium level of 48 kg K2O/fed. Egyptian hybrid one EHR1 (SK2034H) with 70kgN/fed and 48kgK2O/fed gave the highest values of estimated growth parameters, yield components and grain yield under current study. Rice genotypes significantly varied in their growth traits, yield component and grain yield as well as harvest index. (SK2034H) hybrid rice variety significantly surpassed other two tested genotypes followed by Giza 178 rice variety. (SK2046H) occupied the last rank. It could be concluded that EHR1 had to be fertilized by70 kg N/fed and 48 kg k2o /fed under current saline conditions for producing considerable grain yield.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_85791.html}, eprint = {https://jpp.journals.ekb.eg/article_85791_39f99f9de5ded1d5d951d67ce5e79273.pdf} } @article { author = {Khedr, A. and El-Demerdash, M. and El-Hinawy, A. and El-Barogy, Reham}, title = {SEED CHARACTERS OF GRAMINECIOUS WEEDS IN DAMIETTA, NILE DELTA}, journal = {Journal of Plant Production}, volume = {2}, number = {12}, pages = {1919-1930}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2011.85793}, abstract = {Seed characters of 29 plant species belonging to 27 genera of the family poaceae in Damietta district were studied. Qualitative traits such as seed dispersal, seed shape, seed outline and seed texture have been examined. Also, quantitative traits had been measured such as seed mass, seed width and seed length using vernier caliper in mm. Seeds of 15 species were germinated without special pre-treatments, 14 species germinated with special pre-treatments such as KNO3, boiling water & H2SO4. Results indicated that small seeded species were generally wind dispersed and more widely distributed. The relationships between seed mass, dispersal mode and plant distribution in different habitats were significant. The findings of this study support the strategy for control of weeds by understanding seed characters of graminecious weeds in the study area.}, keywords = {dispersal mode,Grasses,seed germination,seed mass,weed distribution}, url = {https://jpp.journals.ekb.eg/article_85793.html}, eprint = {https://jpp.journals.ekb.eg/article_85793_3986a41258d0b5636529c32626b85890.pdf} }