@article { author = {El-Beially, I.}, title = {IN VITRO CULTURE OF IMMATURE EMBERYOS AND ANTHER CULTURES OF BREAD WHEAT}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {6985-6994}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171216}, abstract = {This investigation was carried out at the Cell and Tissue Culture Lab. Agronomy  Dept. Faculty  of Agriculture , Al-Azhar University,   during  the period from 2005 to 2006  aiming  to  study  the main  factors affecting  callus Induction and plant regeneration from cultured immature embryos of  cultivars of wheat  (Triticum aestivum L)  namely  Gemmeiza 7, Gemmeiza 9 , Gemmeiza  10, Giza 168 and Sakha 93 .Experiments were designed to identify cultivars of wheat and growth regulator  most suitablefor successful in vitro immature embryos and anther culture stages were also investigated. Results  indicated that  there were significant  effect  for the cultivars , growth regulators and their interaction  on callus induction from  the immature embryos. The  cultivar G168 recorded  the highest  significant effect for callus induction followed by Gemmeiza  10. The highest  value of callus initiation  recorded  when 2.0 mg/L2,4-D+0.5 mg/L kin was added  to the MS medium. Results  indicated that  there were significant  effect  for growth regulators and their interaction  with genotypes on plant regeneration. Growth  regulators, effected  on the plant regeneration percent. The  highest  value of plant regeneration recorded  when 1.0 mg/L kin +0.5 mg /L 2,4-D or 1.0 mg /L BAP +0.5 mg /L NAA were added  to the MS medium. The interaction  between  cultivars and growth regulators  was significant . The highest  plant regeneration recorded  for Gemmeiza 10   cultured on  MS medium  supplemented with 1.0 mg /L BAP +0.5 mg /L NAA. For anther studies the highest mean for plant regeneration  (11.66%)was obtained from Sakha 93. G168 also yielded high (11.00%) meannumber of plant regeneration .Albinoplants were obtained from 3 of the 5 cultivars. The stage of development of the microspores at the time of culture was affected on plant regeneration percent . Uninucleate microspores stage was identified as producing the highest  percentages of green   plants(26.66%) compared with the tetrad(15.37%) stage. It is also indicated that  the Sakha 93 cultivars   showed the highest percentage of  green plants  from the nucleate stage (35.55%)  follow by  G 168 .}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171216.html}, eprint = {https://jpp.journals.ekb.eg/article_171216_0947244184913b1d9c76e22a930cfa1c.pdf} } @article { author = {Barakat, A. and Osman, M.}, title = {GENE ACTION AND COMBINING ABILITY ESTIMATES FOR SOME WHITE PROMISING MAIZE INBRED LINES BY TOP CROSS SYSTEM}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {6995-7009}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171218}, abstract = {Eleven white maize (Zea mays, L.) inbred lines isolated from different populations were topcrossed with each of three line testers, i.e Gm 4, Gm 21 and, Gm 22. All inbred lines and testers were developed at Gemmeiza Research Station from different genetic sources. The 33 topcrosses along with three checks, i.e. SC 10, SC 129 and SC 122 were evaluated at Sakha and Gemmeiza Research Stations during 2007 growing season. General (GCA) and specific (SCA) combining ability as well as other genetic parameters estimates were calculated for days to 50 % silking, plant height, ear height, number of ears/100 plants, ear length, ear diameter, number of rows/ear, kernels number per row and grain yield (ard/fad). Results indicated that ,there were highly significant differences among the evaluated 33 topcrosses for all studied traits across the two locations. Differences among inbred lines were highly significant for all traits. However, significant differences were detected among testers for silking date, ear height, ear length, ear diameter, rows/ear and grain yield. The interaction of both tested and tester inbred lines  with locations was significant in case of silking date, ears/100 plants and grain yield. Significant interaction of lines x testers was detected for all traits except ear height and kernels number per row. Also, the locations interaction with  lines and testers was highly significant for silking date, ears/100 plants and grain yield. The tested inbred lines and testers exhibited significant GCA effects vary greatly according to the studied traits. The variance magnitude due to GCA for tested and tester lines was higher than that due to SCA for all studied traits, except silking date, number of rows/ear. This indicates that additive genetic variance was the major source of variation responsible for the inheritance of these traits. Tester inbred line Gm 4 was the best general combiner for grain yield ability. Three single crosses i.e Gm- 304 x Gm- 4, Gm- 307 x Gm- 4 and Gm- 310 x Gm- 4 were significantly earlier and shorter than the commercial single crosses 10, 122 and 129. At the same time the grain yield ability for these three promising  single crosses was equal to the best check sc 10 with no significant difference, better than the check Sc 122 and significantly higher than the commercial Sc 129. Therefore, these crosses should be released as new white earlier, shorter with high yield Potentiality  relative to the three commercial check single crosses.  }, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171218.html}, eprint = {https://jpp.journals.ekb.eg/article_171218_75447289306d2610d314a4c245ae2d35.pdf} } @article { author = {Abd Allah, A. and El-Ekhtyar, A. and El Khoby, W. and Shehata, S. and Abd El Lateef, A.}, title = {STUDIES ON THE INDUCTION OF NEW GENETIC VARIABILITY FOR QUANTITATIVE TRAITS BY GAMMA RAYS IN RICE (Oryza sativa L.).}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7011-7025}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171219}, abstract = {The present investigation was carried out at the Farm of the Rice Research and TrainingCenter, Sakha, Kafr El Sheikh Egypt during rice growing seasons 2006 and 2007. Dry seeds of the four rice varieties namely; Sakha 101, Sakha 102, Sakha 104, and Egyptian Yasmine were irradiated with 100, 200 and 400 Gy gamma rays. The seeds of the different treatments in addition to the parental varieties (as control) were grown and transplanted individually in a randomized complete block design with three replications for each treatments along with the control to study the response of different rice varieties to different doses of Gamma rays for some agronomic characters, grain yield and its components and  to select some useful mutants carrying desirable characters from different populations in M2 generation such as earliness, short stature, resistance to blast, and high yielding ability. The results of the M1 generation indicated that in general, germination percentage decreased and the reduction was significant for the Sakha 101cv, while number of days to heading, plant height and panicle length  were decreased by increasing the doses of Gamma rays for most of the studied varieties. On the other hand, the mean values of number of panicles per plant were increased by increasing the dose of gamma rays for the Sakha 101, Sakha 102 cvs. The spikelet sterility increased with the increase in the dose of gamma rays for all studied varieties and therefore, grain yield per plant was decreased.  In the M2 generation, increasing the dose of gamma rays decreased germination %, and plant height for the two rice varieties; Sakha 102, and Egyptian Jasmine. The mean values of number of panicles per plant were increased for the Sakha 101, 102 and Sakha 104 cvs, while it decreased with Egyptian Yasmine. One hundred grain weight was decreased for Sakha 102, Sakha 104 and Egyptian Yasmine, while the Sakha101variety was not affected by gamma rays for this trait. Panicle length and chlorophyll content was increased by the dose of gamma rays for the three varieties; Sakha 101, Sakha 104, and Egyptian Yasmine. Sterility %  was increased and the highest increase was observed for the indica rice variety Egyptian Jasmine and therefore, grain yield per plant was decreased for these varieties. Wide ranges of variability were detected in M2 irradiated populations of all varieties for most of the characters studied comparing with the controls, indicating the possibility of selecting mutants with desirable traits to be tested in subsequent generations. The genetic parameters of studied characters for both control and M2 irradiated populations of all varieties indicated that, in most cases, there were considerable increases by irradiation for both phenotypic and genotypic variances, genetic coefficient of variation, heritability as well as expected genetic advance.}, keywords = {rice,yield traits,Genetic variability,heritability}, url = {https://jpp.journals.ekb.eg/article_171219.html}, eprint = {https://jpp.journals.ekb.eg/article_171219_b94cc7b49e3543f8fbb2409f63c5c3c7.pdf} } @article { author = {Yehia, W. and El - Menshawie, M.}, title = {STUDIED OF TOLERANCE OF SOME EGYPTIAN COTTON CULTIVARS FOR DROUGHT (WATER STRESS)}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7041-7051}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171220}, abstract = {Two experiments were carried out at Sakha Agricultural Research Station , Cotton Research Institute , to study the effect of drought on morphological , yield , yield components and physiological traits in some cotton cultivars . This study comprised some Egyptian cotton cultivars i.e. G.91, G.89, G.85, G.88, G.70, G. 89x G.86 , G.89 x Pima S6, G.86 and G.80. Were  planted under drought condition which toke five once irrigation and normal condition, which toke eight once irrigation as control . The results obtained could be summarized as follows :- 1-  Cultivars differently responded to drought conditions. 2-  Drought condition tended to decreased number of fruiting branches ,   dry weight , plant height , leaf area index, boll weight , seed and lint cotton yield per plant , seed index , lint percentage , number of bolls per plant , total chlorophyll , proteine and oil percentage in seeds. 3- The proline content in leaves was increased as a result of water stress conditions (drought) . 4-  G.86 and G.80 observed the highest values of content of proline in leaves and had a highest  yield and its components under drought stress. 5-  For plant breeder , these results very important to select plants had higher proline content in leaves as indicator to obtained plants more tolerant to drought and highly yielding .}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171220.html}, eprint = {https://jpp.journals.ekb.eg/article_171220_c3905e22d59beb273de276232b9ae818.pdf} } @article { author = {Salama, S. and Ramadan, R. and Awaad, S.}, title = {ESTIMATES OF STABILITY PARAMETERS AND PATH ANALYSIS FOR SOME WHEAT GENOTYPES UNDER DIFFERENT ENVIRONMENTS}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7053-7061}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171222}, abstract = {Ten wheat genotypes (Triticum aestivum L.) were evaluated for yield and attributing characters under four environments(two locations x two seasons .The genotypes were; Sakha 93, Sakha 94, Giza 168, Sids 1, Sids 3, Sids 5, Gemmeiza 3, Gemmeiza 5, Gemmeiza 7 and Gemmeiza 9. The mean performance, phenotypic stability and interrelationship between various characters were computed as well as path coefficient. The results indicated that, significant genotypes; genotype x environment, environmental linear and genotype x environment linear variance for all studied characters. Regression coefficient (b) deviated significantly from unity (b > 1) for genotypes, Sids 1, Sids 3, Sids 5 for all characters aproximately; indicating that the genotypes were adapted to favorable environments.     The “b” value deviated significantly from unity and was less than one (b < 1) in Gemmeiza 7 for flag leaf area, number of spikes / plant, Sakha 93 for flag leaf area, plant height number of spikes/plant, number of spikelets/spike and 1000-grain weight and Giza 168 for number of spikelets / spike, 1000-grain weight and grain yield / plant, genotypes for considering the stability parameters (C.V% and S2d accompanished with mean performance (X), the most desired and stable wheat genotypes were Gemmeiza 9 for all studied characters except number of spikes/plant . While Sakha 94 was stable for number of spikes/plant and grain yield / plant.     Correlation coefficients values were positive and significant between yield and its component for all studied characters except plant height. Path coefficient analysis indicated that number of spikes/plant and 1000-grain weight were the most prominent direct effects on grain yield / plant while number of spikes/plant, number of grains/spike and 1000 grain weight proved to have the highest indirect contribution to grain yield /plant.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171222.html}, eprint = {https://jpp.journals.ekb.eg/article_171222_4a11f48ee3535c141327af0f85ff98b3.pdf} } @article { author = {Salama, S. and El-Taweel, A. and Awaad, S.}, title = {DETERMINING THE RELATIVE CONTRIBUTION OF YIELD COMPONENTS IN FABA BEAN USING SOME STATISTICAL METHODS}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7063-7070}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171223}, abstract = {This investigation was carried out at the Agricultural Research Station of Tag El-Ezz, Dakahlia Governorate during 2006/2007 and 2007/2008 seasons to evaluate the performance of eight genotypes of faba bean namely; Sakha 1, Sakha 2, Nubaria 1, Giza 3, Giza 843, Giza 674, Giza 617 and Giza 2. Also, to investigate the relationship between seed yield/plant and its factors using some multivariate techniques namley; correlation, stepwise, multiple liner regression and factor analysis. The results showed that the studied characters were significantly affected by the tested faba bean varieties. Giza 2 was the earliest one concerning number of days to 50% flowering followed by Nubaria 1 and Sakha 2. Sakha 1 variety gave the highest values for number of branches/plant, plant hight, number of pods/main stem and number of seeds/pod followed by Giza 3 and Giza 716. Giza 3 recorded the highest weight of pods, 100 seed ands seed yield/plant followed by Sakha 1 and Giza 716. Multiple linear regression and stepwise analysis agreed upon the number of branches/plant, number of pods/main stem, weight of pods/plant and 100-seed weight as major contributions to seed yield variation. Factor analysis grouped the studied variables in two major factors which altogether accounted for 81.31 of the total variation. The first factor includes number of pods/main stem, number of seeds/pod, weight of pods/plant and 100-seed weight. The second factor included the remaining variables. Factor analysis technique was more efficient than the other techniques. It provides more information about cluster of intercorrelated variables.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171223.html}, eprint = {https://jpp.journals.ekb.eg/article_171223_ab60f44eea5bb5595b1841b14d5db47a.pdf} } @article { author = {الفارس, عباس and القرواني, محي الدين and الحسن, فاطمة}, title = {تأثير عمق الحراثة الأساسية ومعدلات ومواعيد إضافة السماد الفوسفاتي في إنتاجية القطن کماً ونوعاً}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7073-7086}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171226}, abstract = {اقيمت الدراسة في محافظة دير الزوربسوريا خلال الموسمين الزراعيين 2005 – 2006 ، بهدف دراسة مدى استجابة القطن لعمق الحراثة الأساسية ومعدلات ومواعيد إضافة السماد الفوسفاتي وأثرها على إنتاجية وجودة  الصنف دير22 . أظهرت نتائج البحث بأن زيادة عمق الحراثة وزيادة  معدلات السماد الفوسفاتي بنوعيه وزيادة عدد الدفعات حتى ثلاث دفعات أدت إلى زيادة في عدد الجوزات المتفتحة  ، في حين أدت  إضافة   20 کغ P2O5 / هـ من السماد العالي الفسفور على دفعتين بالمشارکة مع 50 کغ / هـ من سماد السوبر فوسفات إلى زيادة في وزن القطن المحبوب في الجوزة وزيادة في الإنتاجية الکلية [5274  کغ / هـ]  في متوسط الموسمين الزراعيين 2005 – 2006. في حين حقق المعدل 10 کغ P2O5/هـ عند إضافته على دفعتين وبالمشارکة مع 100 کغ/هـ من سماد السوبر فوسفات أعلى دخل  [95427ل.س/ه] ـ في متوسط الموسميين الزراعيين 2005 – 2006. وازداد تصافي الحليج مع تناقص معدلات السماد العالي الفسفور حتى 10 کغ P2O5 / هـ وعند إضافته على ثلاث دفعات بالمشارکة مع 50 کغ /هـ من سماد السوبر فوسفات [44.47 ] % في متوسط الموسمين  في حين أدت زيادة معدلات ودفعات السماد الفوسفاتي إلى زيادة في طول ومتانة التيلة.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171226.html}, eprint = {https://jpp.journals.ekb.eg/article_171226_91452d114bf4b981c257cb3b437b3749.pdf} } @article { author = {El - Bagoury, Olfat and El- Marakby, A. and Makram, E. and Emara, M.}, title = {EFFECT OF MEPIQUATE CHLORIDE AND NITROGEN FERTILIZATION APPLICATION TIMING ON COTTON CULTIVAR GIZA 80}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7087-7099}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171228}, abstract = {                This study was carried out at Sids Agric. Res. Sta., Beni-Suef governorate, Egypt, during 2003 and 2004 seasons. The experimental design was randomized complete blocks with four replications, using the Egyptian cotton cultivar Giza 80 (G. barbadense L.,). The treatments were combinations between nitrogen fertilization in two doses (30+30 Kg N/fed.) or three doses (20+20+20 Kg N/fed.) and splitting the dose of mepiquate chloride to two doses (25+25 g a.i./fed.) or three doses (25+12.5+12.5 g a.i./fed.) or (12.5+25+12.5 g a.i./fed.). The spraying timing was at pine head square, at beginning of flowering and after flowering by two weeks. The obtained results revealed that final plant height at harvest, length of internodes, days to appearance of first flower and first boll were decreased significantly in case of treated plants by mepiquate chloride. Also, number of open bolls per plant, yield of seed cotton per plant and per feddan, micronaire reading and specific leaf weight were increased significantly by applying mepiquate chloride. Number of fruiting branches, upper half mean length and seed index were increased by mepiquate chloride in one season. Number of nodes per plant, fresh/dry weight ratio, boll weight, number of plants at harvest, lint percentage, uniformity index, fiber strength, fiber elongation percentage, reflectance and yellowness were insignificantly affected. The highest yield of seed cotton was obtained from the treatments two or three doses of nitrogen fertilization plus mepiquate chloride splitting dose (12.5+25+12.5 g a.i./fed.).}, keywords = {Cotton,Nitrogen fertilization,Mepiquate chloride,Growth,earliness,Yield and Fiber Quality}, url = {https://jpp.journals.ekb.eg/article_171228.html}, eprint = {https://jpp.journals.ekb.eg/article_171228_6e39e2a5f744c90a8738230e296f6807.pdf} } @article { author = {Mosa, H. and El-Shenawy, A. and Motawei, A.}, title = {LINE X TESTER ANALYSIS FOR EVALUATION OF NEW MAIZE INBRED LINES}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7195-7206}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171230}, abstract = {Ninety nine yellow inbred lines were divided into four sets where each set contained  25,25,25and24 lines, respectively. These lines were top crossed with two yellow inbred line testers in 2004 summer season at Sakha Agriculture Research Station. All hybrids were evaluated for days to 50% silking as well as grain yield at two locations in 2005season, The best single crosses from four sets along with two checks i.e.SC155 and SC pioneer 3084 were evaluated during 2007 season. The results indicated that the mean squares variances of locations, lines, testers and lines by testers were highly significant for all traits , except for testers for silking date of set-3 and set-4. Silking date and grain yield traits were affected by non additive gene action for all sets, except for grain yield in set-2.The non additive gene action was more affected by locations for  silking date in set-1 and set-2 as well as grain yield in sets- 2, 3 and 4. The parental inbred lines, which revealed  significance and desirable GCA effect for earliness were : ten, seven, five and seven from set-1, set-2, set-3 and set-4,  respectively. While it was five, four, five, and eight inbred lines from  set-1, set-2, set-3 and set-4 ,respectively, which had a desirable positive and  significant values for general combining ability effects for grain yield  potentiality in their top crosses. The best tester inbred line for general combining ability effects was inbred, Sk121 for grain yield of set-1, set-3 and set-4, inbred line Sk10 for silking date and grain yield of set-2 and inbred line Sk6241 for silking date of set-1. Results of set-1 showed that  the inbred tester line  Sk121 with the three new yellow inbred lines Sk-5001/2, Sk-5001/7 and 5003/15 gave three single crosses which were significantly earlier showing 57.25, 58.62 and 58.5 days to 50% silking, respectively. They also showed higher grain yield of 35.31, 35.24 and 35.69 ard/fed , respectively, relative to the commercial check hybrid 155 which showed (61.39days and 33.3 ard/fed). The two inbred lines Sk-5002/8 and Sk5002/9 with the same tester inbred line Sk-121 gave two new yellow promising single crosses produced  significantly better  grain yield with 37.33 and 43.46 ard/fed relative to the same check hybrid in set-1. On the other hand, results of set-2, showed that the line Sk-5026/114 was a good combiner with both testers inbred lines i.e. Sk-10 and Sk6241 which gave significantly higher grain yield of  33.09 and 33.60 ard/fed relative to the check single cross 155 which   yielded 29.75 ard/ fed. Tested inbred lines number Sk6001/133, Sk6001/135, Sk6001/136 and Sk7026/146 with the tester line Sk-121 in set-3 gave four good yield single crosses, which were significantly higher  yielding than the check  hybrid 155 (28.6 ard/fed) by 3.39, 5.63, 3.59 and 3.27 ard/fed. ,respectively .Also results of set-4 showed that the tested line Sk5019/72 with the tester Sk121gave good single cross which was significantly higher for grain yield ( 31.18 ard/fed ) relative to SC155(28.5 ard/fed). Evaluation trial of the best single crosses showed that four single crosses; SC Sk5019/72 x Sk121, SC Sk5026/114 x Sk10, SC Sk6001/133 x Sk121 and SC Sk6001/136 x Sk121 were significantly higher for grain yield of 34.06, 35.56, 35.86 and 34.4 ard/fed., respectively, compared to checks SC155 (30.96 ard/fed.) and SC pioneer (24.81 ard/fed.). Also, these crosses were earlier  than the two checks. This study suggested utilization of the above four crosses in the national maize breeding program.   }, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171230.html}, eprint = {https://jpp.journals.ekb.eg/article_171230_492edd9d7a09482e02668c8741f5eaf8.pdf} } @article { author = {Granate, Maria and Elsayed, A. and Silva, D. and M., P. and Emy, S.}, title = {EVALUATION OF COMMERCIAL ROOT YIELD OF ARRACACHA (Arracacia xanthorrhiza Banc.) FROM BRAZILIAN GERMPLASM COLLECTION.}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7207-7213}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171234}, abstract = {                Characterization and evaluation of germplasm collections is considered an achievement as important as maintaining the collection. The objective of this work was to evaluate quantitative yield traits of a collection of Brazilian arracacha to identify high yielding, early and duplicated accessions. All 67 accessions of the arracacha collection were planted in an experiment at the Horticultural Research Station of Public University of Viçosa, MG, Brazil. A randomized complete block design with two replications was used. Each plot contained 15 plants in three rows spaced one m apart and with 0.40 m between plants. After eight months of planting, only 38 accessions presented three or more competitive plants in both replications. Yield of four commercial class root (Extra A, Extra, Special and First) and total commercial root yield were evaluated in three competitive plants of each plot. Sixteen accessions did not produce Extra A roots and eight accessions did not produced Extra roots. Accession BGH 6525 showed the highest total commercial root yield. Accession BGH 4551 showed highest Extra A root yield. Accession BGH 5747 showed highest Extra root yield.}, keywords = {Arracacia xanthorrhiza,yield,germplasm,selection,root class}, url = {https://jpp.journals.ekb.eg/article_171234.html}, eprint = {https://jpp.journals.ekb.eg/article_171234_976c5d0b249bbb00385622e965e8faf3.pdf} } @article { author = {Shehata, S. and El Abd, A. and Badr, E.}, title = {COMBINING ABILITY FOR GRAIN YIELD AND SOME DISEASES RESISTANCE TRAITS IN RICE (Oryza sativa L.) UNDER SALINE SOILS CONDITIONS.}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7215-7241}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171236}, abstract = {Combining ability analysis was carried out in rice through A 6 x 6 diallel set analysis excluding reciprocals involving 6 diverse parents for grain yield and some diseases resistance traits, at Rice Salinity Program at Serw farm, during 2007 and 2008 summer seasons. The ratio of variances due to general combining ability and specific combining ability (ó2 GCA / ó2 SCA) was more than unity, indicating the preponderance of additive genes in controlling, chlorophyll content, plant height, days to 50% heading, number of panicles/plant, both percentage and severity of brown spot, and grain yield/plant. Moreover, additive x additive type of gene interaction was played an important role in the inheritance of praline content and osmotic pressure. On the contrary, Predominance of non-additive gene action chiefly controlled the expression of panicle length; number of filled grains/panicle and 1000-grain weight traits. Among the parents, Sakha 101 was found to be significantly superior general combiner for all the studied traits except, earliness, chlorophyll content and both percentage and severity of brown spot. The genotypes Sakha 102 and Sakha 103 were good general combiners for earliness, chlorophyll content, and both percentage and severity of brown spot, and Sakha 104 for panicle length, 1000-grain weight, grain yield /plant , proline content, osmotic pressure and both percentage and severity of brown spot, Giza 177 and Giza 178 for earliness. Cross combinations, Giza 177 x Sakha 103, Giza 178 x Sakha 102 and Sakha 103 x Sakha 104 gave high SCA effects for number of filled grains/panicle and grain yield/plant. Seven hybrids for both percentage and severity of brown spot and 3 hybrids for plant height and days to 50% heading expressed desired significant negative SCA effects. In addition, Giza 177 x Sakha101 and Giza 178 x Sakha101 were found to be the superior cross combinations for panicle length, 1000-grain weight and chlorophyll content; and Sakha 101 X Sakha 104 for proline content and osmotic pressure. The values of mean degree of dominance (H1/D)0.5 exhibited over dominance with a value above the unity for all agronomic, yield and its component traits; and chlorophyll content  while the other remaining traits were controlled by partial dominance. The ratio of dominant andrecessive genes (KD/KR) in the parents was high than unity for all the studied traits except plant height, days to 50% heading, panicle length and proline content   indicating more of dominant genes in the parental lines than recessive genes. High estimates of broad sense heritability was recorded for all the traits, it was ranged between 94.4% and 98.7% for osmotic pressure and percentage of brown spot disease. In addition, high estimates of heritability in narrow sense were recorded for proline content, osmotic pressure and both percentage and severity brown spot disease.Results of field tests revealed that 12 entries were resistant to blast,four moderately resistant,four susceptible,and only one highly susceptible,three inbred varieties were completely free from false smut,inaddition to five hybrids For white tip nematode,ten hybrids were not infected,but three inbred varieties had considerable infection.for brown spot the highest infected varieties were sakha 101 and Giza 177,while the lowest were Sakha 103 and Sakha104.However,the hybrids had generally lower infection than inbreeds. Results of greenhouse test showed that nine entries performed resistance to both races, while six entries were moderately resistant to RaceIG1,and four entries were moderately resistant to Race IB45.On the other hand, three and four entries were susceptible to the first and second races respectively.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171236.html}, eprint = {https://jpp.journals.ekb.eg/article_171236_076000f968d6b71b4a07f7438e1066a7.pdf} } @article { author = {Aly, A. and Omar, M. and El-Abbasi, I. and El-Samawaty, A.}, title = {EFFECT OF SEED MYCOFLORA ON INCIDENCE OF FUSARIUM WILT DISEASE IN COTTON GENOTYPES}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7243-7251}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171237}, abstract = {Thirteen cotton (Gossypium barbadense L.) genotypes were evaluated for Fusarium-wilt incidence, under greenhouse conditions, in 2008 growing season. The genotypes were divided into 5 distinct groups, i.e. resistant, moderately resistant, moderately susceptible, susceptible, and highly susceptible. The genotypes showed considerable variation in healthy seedlings, which ranged from 0.00% on genotype 491/2002 to 90.08% on genotype 507/2002. A total of 13 fungi were isolated from the nonsterilized seeds of the 13 genotypes. The isolated fungi were Alternaria alternata, Aspergillus flavus, A. niger, Aspergillus sp., Chaetomium sp., Cladosporium sp., Fusarium moniliforme, F. oxysporum, Nigrospora sp., Penicillium sp., Rhizopus stolonifer, Stemphylium botryeosum, and Trichoderma sp. Genotypes 27/99 and 72/99 yielded the highest number of fungi (8 fungi), while 31/99 yielded the lowest number (3 fungi). The other genotypes yielded a number of fungi ranged from 4 to 6. Rhizopus stolonifer was the only fungus, which was isolated from all the tested genotypes. The mean percentage of fungal recovery from seeds of the 13 genotypes showed that A. flavus (24.77%), A. niger (60.46%), Penicillium (18.15%), and R. stolonifer (65.38%) were the most dominant fungi isolated from the seeds. Other fungi occurred at frequencies ranged from 0.15 to 9.69%. Data for healthy seedlings (dependent variable) and frequencies of the fungi isolated from the seeds (independent variables or predicators) were entered into a computerized stepwise multiple regression analysis. Using the predicators supplied by stepwise regression, a six-variable model was constructed to predict healthy seedlings. This model showed that the differences in healthy seedlings were due largely to the effects of R. stolonifer, Cladosporium, F. oxysporum, Nigrospora, F. moniliforme, and A. alternata, which collectively accounted for 96.10% of the total variation in healthy seedlings- that is, the total variation in wilt incidence. The model also showed that R. stolonifer followed by Cladosporium were the most important seedborne fungi contributing to the variation in healthy seedlings. As far as we know, the results of the present study demonstrated, for the first time, that seed mycoflora play an important role in modifying the reaction of cotton genotypes to FOV. Therefore, it is suggested that the role of seed mycoflora should be considered more than it has been in the past for understanding the variations, among cotton genotypes, in resistance or susceptibility to Fusarium wilt disease.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171237.html}, eprint = {https://jpp.journals.ekb.eg/article_171237_eee8744837816874563062f6f88df2f0.pdf} } @article { author = {Kasim, Afaf}, title = {NEW CLONES SELECTED FROM GLOBE ARTICHOKE Cynara scolymus L., FRENCH CULTIVAR (HERIOUS).}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7367-7382}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171239}, abstract = {This investigation was carried out during 2003/2004, 2004/2005, 2005/2006 and 2006/2007 seasons at Kaha vegetables Research Farm, Hort. Res. Inst. In 2003/2004 season, 38 mother plants were planted. These plants were selected in the previous season (2002/2003) from a population of 1200 plants from a private Farm at Kome El-Berka village, Kafr El-Dawaar district, Behira Governorate according to their earliness, yield and its quality traits. Each of the 38 mother plants was considered a clone and planted as an observation trial. At the end of this season fifteen clones were selected according to the obtained data and planted in season 2004/2005. At the end of 2004/2005 season, ten clones were selected according to the obtained data of the studied traits and planted in 2005/2006 and 2006/2007 seasons. The obtained results could be summarized as follow: I. Vegetative traits: I.1. Clone K.D16 produced the highest number of offshoots per plant followed by clones K.D20 and K.D9 while the lowest number of offshoot per plant was produced by clone K.D22. I.2. The highest plant height was produced by clone K.D7 and clone K.D16, while the lowest plant height was produced by the control. I.3. The highest leaves number per plant was produced by clone K.D16 followed by clones K.D9 and K.D7, while the lowest leaves number per plant was produced by clone K.D21 in 2005/2006 and clone K.D23 in 2006/2007 season. II.1. Early yield: The highest early yield was produced by clone K.D6 followed by clones K.D.16 and K.D21 while the lowest early yield was produced by the control followed by clones K.D20 and K.D22. II.2. Total yield: The highest total yield was produced by clone K.D6 followed by clones K.D16, K.D20 and K.D19, while the lowest total yield was obtained from the control followed by clone K.D23. III. Head characters: III.1. Head physical characters: The highest head weight was produced by clone K.D16 followed by clones K.D9, K.D6 and K.D21, while the lowest head weight was obtained from the control The highest head length was produced by clone K.D16 followed by clone K.D7, while the control produced the lowest head length. The highest head diameter was produced by clone K.D6 followed by clones K.D20 and K.D16, while the lowest head diameter was obtained from the control. Clone K.D16 produced the highest receptacle weight followed by clones K.D21 and K.D7, while the lowest receptacle weight was obtained from the control. III.2. Head chemical characters: The highest nitrogen percentage was obtained from clone K.D8 followed by clones K.D6, K.D16, K.D7 and K.D21 while the lowest nitrogen percentage was obtained from clone K.D22. The highest phosphorus percentage was obtained from clone K.D7 followed by clones K.D16 and K.D21, while the lowest phosphorus percentage was produced from the control but the differences were not significant. The highest potassium percentage was produced by clone K.D7 followed by clone K.D16 while the lowest potassium percentage was obtained from clone K.D22. Clone K.D8 produced the highest protein percentage followed by clones K.D6, K.D16, K.D7 and K.D21, while K.D22 produced the lowest protein percentage. The lowest fibers percentage was found in clone K.D6 followed by clones K.D7, K.D16 and K.D21, while the highest fibers percentage was found in clone K.D8.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171239.html}, eprint = {https://jpp.journals.ekb.eg/article_171239_832d6be5020df069a82e61269e29c747.pdf} } @article { author = {Al-Said, M. and Kamal, A.}, title = {EFFECT OF FOLIAR SPRAY WITH FOLIC ACID AND SOME AMINO ACIDS ON FLOWERING, YIELD AND QUALITY OF SWEET PEPPER}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7403-7412}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171240}, abstract = {Two field experiments were carried out at Kafer El-Wekala Sherbin, Dakahlia governorate, Egypt, during the two successive seasons of 2004 and 2005 to study the effect of foliar spray with folic acid and some amino acids i.e., methionine, lysine and cysteine and their combinations on chemical composition, flowering, fruit setting, yield and quality of sweet pepper. The main findings obtained from this investigation showed that: - Foliar spray of pepper plants with 50 or 100 ppm of folic acid with methionine, lysine and Cysteine mixture resulted in the highest significant total protein and total sugars in leaves dry weigh. - Foliar spray with the mixture of 50 ppm of folic acid with lysine and cysteine amino acids enhanced significantly number of flowers and decreased fruit sheding of pepper plants to 17.2%, on the other hand, there was no significant differences could be detected with flowering time with all used foliar spray treatments compared with control. - Foliar application of folic acid at 50 ppm with methionine, lysine and cysteine amino acids mixture led to the highest significant average fruit weight. - Foliar spray with 50 or 100 ppm of folic acid with methionine, lysine and cysteine mixture resulted in the highest significant average fruit weight, fruit diameter, fruit dry weight, fruit total soluble solids, and fruit vitamin C. On the other hand fruit length did not significantly affected by all used interaction treatments. - The lowest nitrate content in fruit fresh weight was resulted from foliar application of 50 ppm of folic acid with methionine, lysine and cysteine mixture.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171240.html}, eprint = {https://jpp.journals.ekb.eg/article_171240_f39d6fcb5c2c9707c904b0c1539d988e.pdf} } @article { author = {Kamal, A. and Abd Al-Gaid, M.}, title = {EFFECT OF FOLIAR APPLICATION WITH SOME ANTIOXIDANTS ON GROWTH AND YIELD OF PEA (Pisum sativum L.) UNDER EARLY PLANTING CONDITIONS.}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7413-7420}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171242}, abstract = {Two field trials were conducted at Sherbin area, Dakahlia Governorate, Egypt, during the two successive seasons of 2006 and 2007 to study the effect of some antioxidant foliar treatments on growth and productivity of pea (cv. Master-B). Ascorbic acid (vitamin C), vitamin E (α–Tocopherol), salicylic acid and their combinations were used as antioxidants foliar treatments at 0, 100, 150 and 200 ppm concentrations. The main findings showed that spraying Formula 2, which contains ascorbic acid + vitamin E + salicylic acid (each at 150 ppm) increased plant growth i.e. fresh and dry weight per plant. Using formula 2 or formula 3 which contains ascorbic acid + vitamin E + salicylic acid (each at 200 ppm) gave significantly the highest values of leaf chlorophyll, shoot N content, pods setting percentage, average weight of pod, number of seeds/ pod, 100 green seeds weight and fresh pod yield (ton/fed) under early planting conditions.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171242.html}, eprint = {https://jpp.journals.ekb.eg/article_171242_de21535239b6780e77fe4504eff95387.pdf} } @article { author = {Mostafa, M. and Hegazi, A. and El-Mogy, M. and Belal, B.}, title = {EFFECT OF SOME ORGANIC FERTILIZERS FROM DIFFERENT SOURCES ON YIELD AND QUALITY OF THOMPSON SEEDLESS GRAPEVINES (Vitis vinifera, L.)}, journal = {Journal of Plant Production}, volume = {33}, number = {10}, pages = {7421-7439}, year = {2008}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3669}, eissn = {2090-374X}, doi = {10.21608/jpp.2008.171243}, abstract = {The present study was carried out during 2003, 2004 and 2005 seasons on 15 years old Thompson seedless grapevines grown on a clay soil in a private vineyard at EL-Tawela village near Mansoura city, Dakahlia governorate. The aim of the present study was to investigate the effect of addition different sources of organic fertilizers as a partial substitute for nitrogen mineral fertilizers and their effect on bud behaviour, growth, mineral content of the leaves, yield and quality of Thompson Seedless grapevines. Farmyard manure (FYM), rice straw compost (RSC), Damitta town refuses (DTR) and Mansoura town refuses (MTR) were used with mineral nitrogen source (Ammonium sulphate) during this investigation. All vines were received the same nitrogen requirements (80 units of nitrogen per fed), but with replacement of 25, 50 and 75 % of the nitrogen requirements by organic manures (FYM, RSC, DTR and MTR) according to their nitrogen content. The control vines received the nitrogen requirements as mineral alone. The results showed that all combinations from organic nitrogen (sources + doses) with mineral nitrogen doses increased bud burst %, bud fertility %, fruiting coefficient, number of clusters per vine, cluster weight and yield/vine. In addition, SSC % was increased and total acidity was reduced in the berries juice. The data also indicated an improvement of rate of wood maturity, weight of pruning wood per vine and total carbohydrates in the canes as compared with using mineral nitrogen alone. The superiority of this investigation was for DTR at 40 and 60 units + 40 and 20 units of mineral nitrogen per fed which gave the best results.}, keywords = {}, url = {https://jpp.journals.ekb.eg/article_171243.html}, eprint = {https://jpp.journals.ekb.eg/article_171243_b1854bb93499e75d2dd6dfcd9907755c.pdf} }