@article { author = {El-Ekhtyar, A.}, title = {IMPACT OF IRRIGATION INTERVALS AND N- LEVELS ON WATER PRODUCTIVITY, GROWTH AND YIELD OF GIZA 179 RICE VARIETY UNDER DRILL- SEEDED METHOD}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {901-916}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55440}, abstract = {Two field experiments were conducted at the Farm of Sakha Agricultural Research Station, Sakha,Kafr- ELsheikh, Egypt during 2012 and 2013 summer seasons. The study aimed to find out the proper nitrogen levels of drill seeded rice of Giza179 rice cultivar under prolonged irrigation interval. The experiment was performed in strip-plot design with four replications. The horizontal plots were devoted to three irrigation treatments; continuous flooding (CF) every 3 days, irrigation every 6 and 9 days. The nitrogen levels Viz; 0, 110, 165 and 220 kg Nha-1 were distributed in the vertical plots. The main results revealed that the growth characteristics as well as grain yield and its attributes were significantly affected by the irrigation intervals in both season of study. flag leaf area, leaf area index,chlorophyll content, plant height, number of tillers/m-2, number of paniclesm-2,number of  filled grains panicle-1, 1000-grain weight, grain yield tha-1 and straw yield tha-1 were decreased as irrigation intervals were prolonged up 9 days in the two seasons of study. On the other hand, the period from sowing to heading was prolonged and sterility% was increased. Harvest index wasn't affected by irrigation intervals in both seasons. Both irrigation intervals of CF and 6 days were at a par regarding rice grain yield of both seasons of study while, panicles number/m-2 and filled grainspanicle-1 showed the same pattern in 2012 season. Water use efficiency was found to be optimum with irrigation interval of 6- days, with water save % amounted to be 6.93- 5.78..Meanwhile, prolonged irrigation interval up to 9 days gave the highest of water save %( 18.8-19.5%) and yield reduction.Increasing nitrogen level up to 220 kg Nha-1 significantly increased all studied traits without significant differences with those produced by 165 kg Nha-1 in most assessed traits and rice grain yield in both seasons of study. On controversy, sterility% significantly decreased as nitrogen level was increased up to 165kgNha-1 while beyond the latter level the sterility% started to slightly increase. Increasing nitrogen level clearly increased water use efficiency.The interaction effect had significant effect on flag leaf area, leaf area index, plant height, number of tillersm-2, number of paniclesm-2, filled grains number/panicle, sterility%, 1000-grain weight, grain and straw yields in both seasons of study.  The interaction effect had no significant effect on heading date, chlorophyll content and harvest index in both seasons.The interaction effect came to confirm that the irrigation every 6 days with 165 kg Nha-1 was being to be effective in increasing water use efficiencies, water save and maintain reasonable grain yield.Under prolonged irrigation interval, increasing nitrogen level could relief the harmful of water stress. It could be concluded that the nitrogen level of 165 kg Nha-1 and irrigation every 6-day is relevant for drilled Giza 179 rice variety providing high water use efficiency with high yield and reasonable water save percentage.}, keywords = {drill seeded rice,Irrigation intervals,and Nitrogen levels}, url = {https://jpp.journals.ekb.eg/article_55440.html}, eprint = {https://jpp.journals.ekb.eg/article_55440_8575bb08ac8f0d1eb329ae7ef07d5c89.pdf} } @article { author = {El-Malky, M. and El-Zun, H.}, title = {GENETIC BEHAVIOR OF YIELD, GRAIN QUALITY, STEM BORER AND STORAGE INSECT INFESTATION TRAITS FOR SOME RICE GENOTYPES AT DIFFERENT SOWING DATES.}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {917-935}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55441}, abstract = {The present investigation was carried out at Rice Research and TrainingCenter and lab of Plant Protection Institute, Sakha, Kafr EL-Sheikh, Egypt, during 2011 and 2012 seasons. The objectives of this investigation is amid to study the genetic behavior of ten rice genotypes under three sowing dates (May1st, May 15th and May30th), the effect of different sowing dates on grain quality characters, and on the infestation by stem borer and to evaluate the susceptibility of certain rice varieties against the infestation by Lesser grain borer, Rhizopertha dominica (F.).The tested genotypes were; Giza177, Giza 178, Sakha 101, Giza 182, GZ 9057-6-1-3-2, GZ 9577-4-1-1, GZ 9523-2-1-1-1, GZ 9461-4-2-3-1, Egyptian Yasmin, and SK2034 H1. Giza 178 cultivar produced maximum grain yield and it remained statistically at par with SK2034 genotype. Egyptian Yasmin gave minimum grain yield. Grain yield averaged across all the genotypes seems to be maximum at sowing date of 1st May. However, the lowest yield was recorded in sowing date of 30th May. Sowing dates significantly affected the milled rice % in the first season only and highest milled rice % belonged to the second planting date in the first season. Highest milled rice % were obtained for Giza 177 and GZ 9523-2-1-1-1; the lowest percentages were observed for GZ 9577-4-1-1 and Giza 178. For Stem borer (Chilo agamemnon Bles.), Giza 178, Sakha101, GZ 9577-4-1-1 and GZ 9461-4-2-3-1 were resistant (R) with 1.44, 0.83, 2.66 and 1.93 WH%, respectively. While, five genotypes (Giza177, Giza182, GZ 9057, GZ 9577-4-1-1 and SK2034 H1) were  moderately resistant (MR) with 4.18, 4.14, 5.94, 3.46, and 5.36 WH%, respectively. On the other hand, one genotype (Egyptian Yasmin) was moderately susceptible (MS) with 6.32 WH%. The number of adult emergence of Rhizopertha  dominica ranged from 1.08 insects (Sakha101) to 8.25 insects (GZ9577-4-1-1) (low susceptibility varieties to insect infestation). Also, the number of adult emergence ranged from 13.08 insects (Giza182) to 17.58 insects (Giza177) for moderate susceptibility varieties to insect infestation. Also, the number of adult emergence ranged from 21.08 insects (Egyptian Yasmin) to 22.58 insects (GZ 9057-6-1-3-2) which proved to be high susceptibility varieties to insect infestation. Clustering analysis for varieties, based on similarity of quantitative characters, produced two large distinct groups. The first one included five rice genotypes; Giza 178, Giza 182, GZ 9523-2-1-1-1, Egyptian Yasmin and SK2034 H1. These genotypes were Indica and Indica-Japonica types except Gz 9523-2-1-1-1 was Japonica type. While, the second group included  Giza 177, Sakha 101, GZ 9057-6-1-3-2, GZ 9577-4-1-1 and GZ 9461-4-2-3-1, these genotypes were Japonica types and similar in duration and grain yield characters.}, keywords = {rice,genetic behavior,yield,grain quality,Chilo agamemnon Bles,Rhizopertha dominica (F.)}, url = {https://jpp.journals.ekb.eg/article_55441.html}, eprint = {https://jpp.journals.ekb.eg/article_55441_89b9bcd0a94ab96bc0b3c6a118833ad4.pdf} } @article { author = {Shokr, M.}, title = {REDUCING THERMO STRESS EFFECTS ON TOMATO CROP (Lycopersicon esculentum, Mill) BY USING PIGEON PEA AS SHADING PLANTS AND FOLIAR APPLICATION WITH SOME STIMULATIVE SUBSTANCES UNDER HIGH TEMPERATURE OF SUMMER SEASON.}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {937-951}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55442}, abstract = {High temperature is a serious environmental factor which induce heat stress causing bad effect on growth, flowering and fruiting stages of tomato plants during summer season. For this purpose, the adverse effects of heat stress on tomato growing during summer season can be mitigated by some agro-techniques, i.e., shading plants and foliar application by specific stimulatory substances. Therefore, Two field experiments were carried out at EL-Baramon Research Station, Dakahlia Governorate, Egypt, to study the effect of shading by using pigeon pea plantation and foliar applications with calcium )2000 mg/L), boron (50 mg/L), vitamin E (150 mg/L) and selenium + vitamin E (50+150 mg/L) towards better thermal tolerances and higher productivity of tomato (Lycopersicon esculentum, Mill) cv Alisa Hybrid F1 during summer seasons of 2010 and 2011. The results revealed that both shading and aforementioned substances had ameliorative effects against the adverse condition on tomato plants, compared with control, which were reflected by enhancing vegetative growth characters (plant height, number of branches and leaves/plant and fresh and dry weight/plant), flowering aspects (number of flowers and clusters/plant, fruit set percent, number of fruits/plant and fruit weight), fruit quality (firmness, TSS, ascorbic acid BER and sunscald) and marketable fruit yield and yield attributes. However, the most effective treatments were foliar application by boron and calcium mixture and/or individual and shading 2 (growing pigeon pea plants on 100cm apart) in which attained the highest marketable fruit yield, by 44.95, 38.7, 34.21, 26.82, 25.75, 17.99, 15.13 and 14.39%, over the control, as for B and Ca mixture, B, shade 2, Se and VE mixture, Ca, shade 1, shade 3 and VE respectively, and best performance in the two studied seasons. By contrast, the adverse action of high temperature resulted in reducing growth and reproductive parameters of tomato plants, and increased fruit disorders, blossom end rot and sunscald injuries, (untreated control) in both seasons.      }, keywords = {}, url = {https://jpp.journals.ekb.eg/article_55442.html}, eprint = {https://jpp.journals.ekb.eg/article_55442_b4a4bbde21c421e26b3e3a754db2fdaa.pdf} } @article { author = {Abd Ellatef, A. and El-khoby, W.}, title = {LINE X TESTER ANALYSIS FOR YEILD AND ITS COMPONENT AND GRAIN QUALITY CHARACTERS IN RICE}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {953-971}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55444}, abstract = {A Study on combining ability and heterosis were conducted on 12 F1 hybrids along with seven rice genotypes field experiment was carried out at the Farm of Rice Research and TrainingCenter, Sakha, Kafr El-sheikh, Egypt using to line x tester mating design, during 2012 and 2013 seasons. The objectives of this investigation was aimed to know the pattern of inheritance of some grain yield and its component and grain quality characters in rice for selecting superior genotypes. The present investigation. The Line, GZ 8455-6-8-3-1was earlier and shorter than other linens, its estimated values of days to complete heading and plant height were (99 days and 96.24 cm), respectively. Among the linens, GZ 8372-13-1-3-1 followed by GZ 8455-6-8-3-1. were found to be longest panicle length, highest number of  panicle per plant, lowest sterility %, heaviest 100 grain weight and highest grain yield per plant. On the other hand, Sakha 103 and Sakha 102 were found to be the earliest Testers. Moreover, Sakha 101 was found to be the shortest tester. In addition GZ 8455-6-8-3-1 x Sakha 102 followed by GZ 8455-6-8-3-1 x Sakha 104 were the earliest rice cross combinations. While, the shortest plant height (98.14 cm) was lasted from GZ 8455-6-8-3-1 x Sakha 102.             Analysis of variance revealed significant differences among genotypes, crosses, lines, testers and line x tester interactions for yield and its component and grain quality characters. Both GCA and SCA Variances were highly significant for all the studied characters indicating the predominance of additive and non additive gene action in the inheritance of all characters. The estimated ratio of GCA/SCA was lower than unity for all the studied traits except days to complete heading trait, indicating the importance of non-additive gene action in the inheritance of all traits, except days to complete heading trait, which was fond to be controlled by additive gene action. The highest heterobeltiosis were obtained for cross GZ8951-9-7-1-3 x Sakha 103 followed by GZ 8951-9-7-1-3 x Sakha 102, GZ 8951-9-7-1-3 x Sakha 101 and GZ 8951-9-7-1-3 x Sakha 102 rice crosses for number of panicles/plant and head rice %, respectively. The proportional contribution of testers was observed to be higher than that of the interactions of line x tester that revealed the highest estimates of GCA variance.          The cross combinations GZ 8951-9-7-1-3 x Sakha 101, GZ 8455-6-8-3-1 x Sakha 104, GZ 8455-6-8-3-1 x Sakha 101, GZ 8951-9-7-1-3 x Sakha 103, GZ 8372-13-1-3-1 x Sakha 104 and GZ 8372-13-1-3-1 x Sakha 101 were observed to be good specific cross combinations for grain yield and grain quality characters to their highly significant SCA and heterobeltiosis effects. High broad sense heritability (96.23%) was recorded for days to complete heading. While high narrow sense heritability was recorded for number of filled grains / panicle (50.14%). Highest estimates of expected genetic advance were observed for gel consistency and 100 grain weight. Highly significant and positive estimates of phenotypic correlation coefficient were found between grain yield and each of hulling %, milling %, head rice %, grain elongation, gel consistency and gelatinization temperature.}, keywords = {rice,line x tester,heterobeltiosis,Combining ability,yield,its component and grain quality traits}, url = {https://jpp.journals.ekb.eg/article_55444.html}, eprint = {https://jpp.journals.ekb.eg/article_55444_cb244541db66826f6052cd24dac0198c.pdf} } @article { author = {El-Ekhtyar, A.}, title = {RESPONSE OF EGYPTIAN HYBRID ONE RICE CULTIVAR TO POTASSIUM SPLIT APPLICATION UNDER DIFFERENT IRRIGATION INTERVALS.}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {973-990}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55446}, abstract = {Two filed experiments were conducted during 2012 and 2013 seasons at the Experimental Farm of Rice Research and TraIningCenter, Sakha, KafrEl-Sheikh, Egypt. The experiment aimed to study the effect of irrigation intervals and potassium splitting on Egyptian hybrid one (EHR1) rice cultivar. The study was performed in strip plot design with four replications. The irrigation intervals; irrigation every 3, 6 and 9 days were placed in the horizontal plots, while the potassium splitting treatments, namely; K1: All basal (B), K2: ½ B + ½ mid tillering (MT), K3: ⅓ B + ⅓ MT + ⅓ panicle initiation (PI) and  K4: ¼ B + ¼ MT + ¼ PI + ¼ booting stage (BT) were distributed in the vertical plots.  Some growth characteristics, chlorophyll content, leaf area index and dry matter production m-2 were assessed at heading stage. Yield and yield attributes were measured at harvest .Some water relations were also estimated during current study.                 The resulted indicated that irrigation intervals had significant effect on all studied traits in both seasons of study. The prolonging irrigation intervals up to 9 days significantly reduced rice growth, yield attributing characteristics, rice grain and straw yields as well as harvest index. The irrigation intervals every 3 and 6 days were placed at the same level of significant in both seasons of study regarding the rice growth, yield contributes, grain yield and harvest index. The irrigation interval every 3days treatment consumed the highest amount of total applied water (13492.9 and 13609.8m/3 ha-1) with the lowest values of water use efficiency (0.811 and 0.814 kg/m3) during first and second  seasons, respectively. The irrigation interval of 9 days gave the highest values of yield reduction (18.01 and 19.22%), water save (20.23 and 21.50 %) and medium value of water use efficiency (0.833 and 0.838 kgm-3) in 2012 and 2013 seasons, respectively. The irrigation interval of 6 days had the highest values of water use efficiency (0.894 and 0.899 kgm-3) with mild yield reduction of (1.65 and 1.81%) and its water save was amounted to be 10.76 and 11.03% in the first and second seasons, respectively.                 The potassium split treatments significantly improved rice growth, yield contributes, rice grain and straw yields as well as harvest index comparing to one dose application as basal. The potassium splitting into four equal  doses, ¼ B + ¼ MT + ¼ PI + ¼ BT significantly surpassed the rest of treatments whereas; it gave the highest values of all measured traits, while potassium application as one dose gave the lowest values of all measured traits under current study in both seasons. The potassium split into four equal doses gave the highest values of water use efficiency (0.897 and 0.905kgm-3) in both seasons of study. Generally,  both of potassium splitting into three equal doses, ⅓ B + ⅓ MT + ⅓ panicle initiation (PI) and potassium splits into equal four doses were placed in the same group regarding superiority effect on dry matter gm-2, number of paniclesm-2, total number of grainspanicle-1, number of filled grainspanicle-1, 1000-grain weight, grain yield, straw yield and harvest index as well as water productivity. The interaction between irrigation intervals and potassium treatments had significant effect on chlorophyll content, leaf area index, dry matter production m-2(only in 2012 season), plant height cm, and number of paniclesm-2, number of total grains panicle-1, number of filled grains panicle-1, 1000-grain weight, grain yield, straw yield and harvest index in both seasons of study. Generally, the results of interaction proved that irrigation interval of 6 days could be recommended for rice cultivation with potassium splitting in four equal doses to save water and high water use efficiency. It could be concluded that the potassium splits in to four equal doses including PI and booting stage could be recommended under 6 days irrigation interval to ensure  high grain yield and water productivities. Potassium splitting applications at critical different rice growth stages confirms an adequate amount of potassium supply at the correct time mitigating the adverse effect of water stress and produced considerably yield.}, keywords = {rice,Hybrid Rice,Irrigation,potassium splits,water use efficiency}, url = {https://jpp.journals.ekb.eg/article_55446.html}, eprint = {https://jpp.journals.ekb.eg/article_55446_a758f38bad0d22d3d0dc4461e74e4040.pdf} } @article { author = {Hegazy, A.}, title = {MICROPROPAGATION OF PEAR ROOTSTOCK (Pyrus betulaefolia L.).}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {991-1002}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55449}, abstract = {              In vitro rapid propagation of pear rootstock (Pyrus betulaefolia) was established and achieved from shoot tips and nodal segment explants of mature tree grown in the greenhouse. Explants cultured on MS (Murashige and Skoog, 1962) basal medium in addition to  Ca-pantothenate (10 mg/L) supplementedwith two types of cytokinins (BA or Kin ) at the concentration of 0.0, 1.0, 2.0 and 3.0 mg/L singly or combined with IBA at 0.0, 0.5 and 1.0 mg/L were used. Shoot tip explant recorded the highest shoots number (7.6/shoot) as compared with single node explant (5.0/shoot) under the same BA concentrations (1.0 mg/L) and absence of IBA after 6 weeks of incubation at 25 ± 1ºC  and 16 h photoperiod with a light intensity of 1500 lux using florescent lamps. Addition of cytokinin to the culture media was considered as limiting factor in shoot proliferation and was effective with the two explant types at low concentration of BA (1.0 mg/L) as compared with high concentrations (2.0 and 3.0 mg/L). Raised either BA or IBA concentrations alone or in combinations in the media reversely recorded lower shoot numbers in the two explant types compared with low concentration. Interestingly, single node that cultured on the medium contained BA (3.0 mg/L) and IBA (1.0 mg/L) obtained the lowest shoot number (2.4/shoot) as compared with all other studied treatments. The results revealed that BA was more effective than Kin in shoot formation at the same concentrations especially at 1.0 mg/L, since the number of shoots/explant (5.08) for BA against (3.23) for Kin. In the rooting stage, in general IBA  was found more superior than NAA in root characters. Healthy shoots separated individually  from the shoot clump and cultured on MS basal medium supplemented with IBA (0.5 mg/L) recorded the highest root formation (100 %), number of roots (5.7) as well as root length (2.5 cm) after 4 weeks of incubation. Well–developed pear plantlets transferred from rooting medium to acclimatization and the growing mixture of peat moss and perlite (1:1, v/v) obtained the highest plant survival (91.7 %), number of leaves (13.1 leaf) and plant height (17.7 cm) after 2 months in acclimatization.   }, keywords = {in Vitro,nodal explants,tissue culture,direct organogenesis,necrotic cultures}, url = {https://jpp.journals.ekb.eg/article_55449.html}, eprint = {https://jpp.journals.ekb.eg/article_55449_d96eaea59724a86738e99ce3b3fab305.pdf} } @article { author = {AbdelKader, H. and Massoud, H. and Mosa, A. and Eisa, E. and Nour Eldeen, E.}, title = {EFFECT OF BIO- FERTILIZATERS AND PLANT EXTRACTS ON GROWTH, ESSENTIAL OIL AND CHEMICAL CONSTITUENTS OF SAGE (Salvia officinalis L.) PLANT, UNDER WATER STRESS CONDITIONS.}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {1003-1020}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55452}, abstract = {The present work was carried out at a private Farm in Sammenoud area, Gharbieh Governorate during the two successive seasons of 2011-2012 and 2012-2013. The present study aimed to investigate the effect of bio fertilizers (VAM fungi and phosphorine) and foliar spray of plant extracts (garlic and aloe) on some vegetative growth (plant height, fresh and dry weight) essential oil percentage and chemical constituents of sage (Salvia officinalis L.) plant under different water stress conditions (plants irrigated every 15, 30 and 45 days). The results showed that irrigation of plants every 15 and 30 days were effective in increasing the productivity of vegetative growth, essential oil percentage and uptake of N,P and K % in sage. Spraying plants with garlic extract was more effective than aloe extract at in improving the productivity of vegetative growth, essential oil percentage and uptake of N, P and K content. Plants treated with VAM fungi were effective in increasing the productivity of vegetative growth, essential oil percentage and uptake of N, P and K %.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_55452.html}, eprint = {https://jpp.journals.ekb.eg/article_55452_10496be81a3ffaab284418ef33b4667c.pdf} } @article { author = {El Shahaby, O. and Haroun, S. and Abo Hamed, S. and Shams Eldeen, Reham}, title = {PLANTING DATE, CINNAMIC ACID AND N FERTILIZER AFFECT GROWTH AND METABOLITES OF Pimpinella anisum}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {1021-1038}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55453}, abstract = {Two field experiments were conducted, to determine the effect of planting anise plant on late date (25th Dec.) in addition to the control date (25th Oct.) on growth parameters, photosynthetic pigments, carbohydrates and nitrogen content of Pimpinella anisum L. treated with cinnamic acid (CA) and/ or urea. In general the obtained data showed that, treating anise plant with different concentrations of CA (1mM, 5mM and 10mM) decreased all the growth parameters, photosynthetic pigments, carbohydrate and nitrogen contents during the two dates of cultivation. On the other hand the two used levels of urea fertilizer (50% and 100%) especially 100%, increased all the growth parameters, photosynthetic pigments, carbohydrate and nitrogen contents during the two dates of cultivation. In general, the results obtained by CA and urea; either alone or together in case of control date of cultivation were much better than those obtained on the late date of cultivation.}, keywords = {planting date,cinnamic acid,urea,Pimpinella anisum L,Growth}, url = {https://jpp.journals.ekb.eg/article_55453.html}, eprint = {https://jpp.journals.ekb.eg/article_55453_83136ff732b96d05551a2b9c6c156d57.pdf} } @article { author = {EL-kady, M. and Samera, N. and EL–Shobaky, M. and Badawy, Rania}, title = {EFFECT OF ETHEPHON ON RIPENING PROCESS OF KELSEY PLUM FRUITS.}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {1039-1051}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55458}, abstract = {The present study was carried out during 2010and 2011seasons to evaluate the effect of dipping Kelsey plum fruits in different concentrations of ethephon (250,500,750 and 1000ppm) as post harvest treatment to hasten fruit ripening. The data showed clear that ethephon application increased both loss in fruit weight , decayed fruit and total loss in fruit weight than the control.Yet, higher concentration was superior in this respect furthermore these treatment reduced both fruit firmness and chlorophyll A,B but increased SSC, and total anthocyanin than the control. Also, that data presented that higher concentration (1000 and 750 ppm) gave a higher effect in this respect.                                                                        }, keywords = {}, url = {https://jpp.journals.ekb.eg/article_55458.html}, eprint = {https://jpp.journals.ekb.eg/article_55458_4066d955a025798dd13a690b70844e35.pdf} } @article { author = {ElGazzar, T. and Zaghloul, M. and El - Saady, W. and El-Kolly, A.}, title = {EFFECT OF SOME DIFFERENT ROOTSTOCKS ON YIELD AND ITS COMPONENTS OF CUCUMBER.}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {1053-1061}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55459}, abstract = {        In this study, the effect of different rootstocks on cucumber survivals %, plant growth, fruit, yield and quality were studied by comparing grafted plants with non-grafted ones under plastic house during the winter seasons of 2010/2011 and 2011/2012, The cucumber (Cucumis sativas L,) c.v Balqis F1, was grafted onto 6001 (C.shantosa), Strong (C.mixita), Gumbo (C.maxima), Bottle gourd (Legenaria sosiraria), Vegetable sponge (Luffa cylindrica) and pumpkin (C.moschata). C.V Balqis F1 Non-grafted plants were used as control. Grafting significantly affected survival % , stem length ,stem diameter, internodes length , leaf area, plant fresh and dry weight. Control plants had low survival %, short stem length, internodes length and low leaf area, plant fresh and dry weights in both seasons.         The highest number of flower/node, per plant and fruit setting % values were obtained from plants grafted onto 6001 followed by those grafted onto strong. The highest early yield and total yield per plant as a number and weight were obtained from plants grafted onto 6001 followed by the grafted onto strong. Grafting cucumber onto 6001 significantly increased fruit weight, length and shape index.}, keywords = {Cucumber,rootstock,grafting,plant growth,yield,Quality}, url = {https://jpp.journals.ekb.eg/article_55459.html}, eprint = {https://jpp.journals.ekb.eg/article_55459_6f659aa06e872b378fcaf3b316dc32ba.pdf} } @article { author = {Rashwan, A.}, title = {GENETIC ANALYSIS AND SELECTION OF SOME AGRO-ECONOMIC CHARACTERISTIC AND ITS COMPONENT IN COWPEA VIGNA UNGUICULATA L WALP UNDER DROUGHT CONDATION}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {1063-1078}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55461}, abstract = {  The climate is changing all over the world, particularly in sem-arid and arid regions. This changing climate could strongly affect cowpea production worldwide. As the world population continues to grow, and water resource for crop production decline and temperature increase, so the development of heat and drought tolerance cultivars is an issue of global concern. In this context, two cycles of selection were employed in the F2 generation of a cross between to assess the impact of selection on seed yield in response to drought. Family selection and within-family selection were adopted in the second cycle of selection. The observed response to selection for dry seed yield was 7.27% in the F3 generation and 4.09 and 19.82% in the F4 generation for family and within family selection, respectively. The main dry seed yield of F3 generation exceeded that of two standard cultivars ("Cream 12" and "Azmerly") by 20.62 and 10.54%, respectively. While the mean of F4 selection exceeded that of the two standard cultivars by 39.60 and 26.46%, respectively. Significant positive correlations were obtained for weight of 100-seeds (2.8), Pod length (3.91) and number of seeds/pod (3.29) in the F3 generation but not in the second cycle of selection. Generally, the observed response to selection were greater than the predicted response indicating the presence of dominant gene affects for the trait studied.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_55461.html}, eprint = {https://jpp.journals.ekb.eg/article_55461_5162f603ceffe084fb6fe3c7d6e59e05.pdf} } @article { author = {Masry, A. and Kansouh, A. and Shalaby, T. and Rakha, M. and Etman, A.}, title = {GENE ACTION AND COMBINING ABILITY IN SOME TOMATO (Solanum lycopersicum L.) CROSSES GROWN IN LATE SUMMER SEASON}, journal = {Journal of Plant Production}, volume = {5}, number = {6}, pages = {1079-1090}, year = {2014}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2014.55463}, abstract = {Gene action and combining ability effects were estimated in forty five hybrids obtained from crossing fifteen lines with three testers using line x tester matting design. These genotypes (fifteen lines, three testers and forty five hybrids) were evaluated for vegetative growth, yield and its quality in late summer season. This study was carried out at Faculty of Agriculture, KafrelsheikhUniversity, Sidi Salim distrect, North-Delta Region of Egypt. G.C.A and P.C.V. % ranged from 0.88 to 0.98, which was confirmed by the estimated ratio of G.C.V. / P.C.V. Furthermore, broad sense heritability (h2bs) values ranged from 76.96 to 95.60 suggesting less effect of environmental and the large portion of σ2p was due to the σ2g on these traits. The magnitude of variance due to general and specific combining ability was highly significant indicating importance of the additive (σ2A) and non-additive (σ2D) gene action. However, the ratios of σ2GCA / σ2SCA (<1) and σ2A/ σ2D (<1) revealed the preponderance of non-additive variance in the inheritance of all studied traits. The average degree of dominance revealed over-dominance for all studied traits except for ascorbic acid content, which was revealed partial dominance. Highly significant differences were observed among the parents and hybrids for general combining ability (GCA) and specific combining ability (SCA) effects. The parental lines HE-13-2-1, HE-6-5-1, HE-13-1-1 and D-7-3-1 displayed desirable general combiners for most studied traits. The cross combinations HE-13-1-1 x F.M.9, D-4-3-1 x F.M.9, D-2-1-2 x Super Strain B and HE-19-1-1 x Super Strain B are considered the best specific combinations since showed desirable significant SCA effect values for most studied traits.}, keywords = {Solanum lycopersicum L,gene effects,GCA,heritability}, url = {https://jpp.journals.ekb.eg/article_55463.html}, eprint = {https://jpp.journals.ekb.eg/article_55463_7dd2f5f6f1cbdc8dba123db65d159ffe.pdf} }