Egyptian Journal of Plant Breeding最新文献

{"title":"UTILIZATION OF LINE x TESTER ANALYSIS FOR ESTIMATING COMBINING ABILITY FOR SOME NEW YELLOW MAIZE INBRED LINES","authors":"A. Shosha, H. El-Shahed, M. Darwich","doi":"10.12816/EJPB.2020.170600","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170600","url":null,"abstract":"In 2018 summer season at Gemmeiza Research Station, eleven new yellow inbred lines were crossed with three testers: two inbred lines Gz.658 and Gm.6052) and one single cross SC 162 according to line x tester design. In 2019 summer season the resulting, 33 crosses and four check hybrids: two single crosses (SC 168 and SC 3084) and two three way crosses (TWC 360 and TWC 368) were evaluated at both of Gemmeiza and Sids experimental Research Stations. Significant and highly significant mean squares due to crosses and the partitions lines, testers and lines x testers were obtained for all studied traits across locations, except testers for grain yield. K2 SCA (non- additive gene effects) were more important than K2 GCA (additive gene effects) for all traits Gm.2, Gm.6, Gm.9 and Gm.35 had desirable values for GCA effects for grain yield. The best cross for SCA effects was Gm. 9 × SC. 162 for grain yield. Five single crosses, (Gm. 2 × Gz 658 (28.956 ard /fed), Gm. 35 × Gz 658 (27.777 ard /fed), Gm. 2 × Gm. 6052 (27.566 ard /fed), Gm. 6 x Gm. 6052 (28.157 ard /fed) and Gm. 35 × Gm. 6052 (28.123 ard /fed) did not significantly out-yielded the highest check SC 168 (27.190 ard/fed), while three- way cross Gm. 9 × SC. 162 (29.74 ard/fed) significantly out-yielded the best check TWC 360 (26.42 ard/fed)","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130232947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GENETIC VARIABILITY AND GENETIC ADVANCE FROM SELECTION IN MUNICIPAL GARLIC (Allium sativum L.) FOR ECONOMIC AND QUALITY TRAITS","authors":"A. El-Sayed, Y. Osman, H. I. A. El-Hakim","doi":"10.12816/EJPB.2020.170599","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170599","url":null,"abstract":"Ten Egyptian garlic clones were assessed for genetic variability and genetic advance for yield and some quality characteristics during four seasons [first season (S1), second season (S2), third season (S3) and fourth season (S4) in 2016-2017, 2017-2018, 2018-2019 and 2019-2020 respectively] at Vegetable Research Farm, Horticultural Research Institute and Crops Technology Research Department, Food Technology Institute, Agricultural Research Center (ARC), Kaha, Dokki and Giza Egypt. All genotypes were collected from various governorates in Egypt, i.e. Elmnofia (Ba.1), Elminia (Ba.2), El sharkia (Ba.3), El giza (Ba.4), El fayoum a (Ba.5), El fayoum b (Ba.6), Benisuif (Ba.7), Sohag (Ba.8), kalubia (Ba.9) and Asuit (Ba.10). The results showed that clone Ba.7 produced the highest bulb diameter, dry weight of leaves, bulb and plant leaves weight, total cured yield, as well as, clove weight, bulb weight and diameter after curing. Clone Ba.10 produced the tallest plants and also, contains the highest content of pungency content, followed by clone Ba.2. Estimated coefficient of variance (CV %) values indicated that most of clones had good homogeneity in all studied characters. The large portion of phenotypic variance (σ2p) was due to the genetic variance (σ2g). High genetic advance in all traits indicated that the observed significant phenotypic differences among the studied genotypes are of genetic nature and there are small environmental effects on the phenotypic variation. Therefore, simple selection can lead to improvement in these characters. The selected Beni suif (Ba.7) genotype had homogeneity, high productivity and high quality, so, it could be considered promising new clone of garlic.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127868885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DIFFERANTRAL RESPONSE OF SOME RICE CULTIVARS TO SEEDLING AGE AND PLANT SPACING AND THEIR EFFECT ON GROWTH TRAITS AND YIELD","authors":"W. T. A. El-Rahem, E. Abo-Marzoka","doi":"10.12816/EJPB.2020.170603","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170603","url":null,"abstract":"Two field experiments were carried out at Rice Research and Training Center, Sakha, Kafr El-Sheikh, in the summer seasons of 2019 and 2020 aiming to study the effect of three rice cultivars (Giza 178, Sakha107 and Sakha 108) to three seedling ages (20, 25 and 30 days after planting) and three transplanting spaces (15 × 20, 20× 20 and 25× 20 cm) as well as their interactions on growth characters, yield and its attributes. The results showed that cultivars significantly differed for all traits; Sakha 108 rice cultivar produced the maximum values for growth characters :leaf area index,crop growth rate ,relative growth rate and net assimilation rate as well as yield attributes :number of tillers/m², number of panicle/m², panicle length (cm), number of total grains/panicle, 1000 - grain weight (g) and grain yield (t/fed).While the lowest values of these traits were recorded by Giza 178 rice cultivar. Seedling age had a significant effect on all studied charactaristies. Younger seedlings (20 day old) produced significantly the highest mean values. While the minimum values of the previous traits were obtained when plants were transplanted at 25 day old seedlings.Plant spacing significantly affected on all traits. Wider spacing (25 × 20cm) gave maximum number of tillers/m², number of panicles/ m², panicle length (cm), number of grains/panicle, 1000 - grain weight (g) and grain yield (t/fed), while closer spacing (15 × 20 cm) gave the lowest values. A significant effect was found for the interaction between the three factors on the traits under study. The highest values of all traits were recorded when using Sakha 108 cultivar, youngest seedling age (20 day old) and widest spacing between hills (25 × 20 cm).On the other hand, the lowest mean values were recorded when using Giza 178 rice cultivar, the oldest seedling age (30 day old) and closest spacing between hills (15×20cm) in both seasons. In general, it could be recommended using Sakha108 rice cultivar with seedling age of 20 days and plant spacing of 25 × 20 cm under transplanting.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130339211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"POLYPOLIDY AND SWEETENER INDUCTION IN DIFFERENT STEVIA VARIETIES USING COLCHICINE","authors":"W. E. Grad, S. Gomaa","doi":"10.12816/EJPB.2020.170609","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170609","url":null,"abstract":"The aim of the present investigation was to improve steviol glycosides (SGs) of three stevia varieties; Sponti (SPNT), China1 (CHN) and EGY1 (EGY) by obtaining new genotypes with high ratio of rebaudioside A (rebA)/stevioside (stv) using five different doses of colchicine(0, 0.025, 0.05, 0.1 and 0.2%), during 2018 and 2019 seasons at El\u0002Sabahya Research Station, Alexandria Governorate. Plants with a significant large leaf area/plant and significantly high number of leaves/plant, as well as dry matter content from the three commercial varieties, were selected and evaluated for their steviol glycosides content by using high performance liquid chromatography (HPLC). Results of buds survival rate, showed that SPNT and EGY varieties performed better than CHN. SPNT-22, CHN-31, EGY-22, EGY-23and EGY-31 mutated clones showed a significant superiority for most desirable morphological characters (leaf area/plant, number of leaves/plant as well as dry matter content)compared to other tested genotypes. HPLC showed that the sweetener contents stv and reb A percentages were affected by polyploidy induced by colchicine. Best ratio of reb A/stv was recorded by CHN-31 (3.846) which was 4.2 times higher than CHN (0.919). CHN-31, EGY-22 and EGY-31 clones recorded the highest reb A + stv percentage (77.25, 78.33 and 76.18, respectively). For EGY-31(a new clone), rebA/stv percentage was 2.6 higher compared to its commercial variety, this, consequently, decreases the bitter taste and aftertaste and increases sweet flavor. New genotypes (CHN-31and EGY-31) were obtained and selected as the best clones due to the higher sweeteners percentages recorded, which might help in meeting diabetics needs in the future","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129303240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"NEW PROMISING SQUASH INBRED LINES DEVELOPMENT AS A MAJOR STEP TO DEVELOP SUPERIOR HYBRIDS","authors":"A. El-Eslamboly, A. Diab","doi":"10.12816/EJPB.2020.170601","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170601","url":null,"abstract":"The inbreeding strategy for five successive seasons began from 2014 to 2017 at Gemmezia Experiment Station, Gharbya governorate was conducted. Seventeen promising squash inbred lines were selected. The selection focused on plant length, number of female flowers, and the average fruit weight. The coefficient of variance (C.V. %) values showed that most of the lines were highly homogeneous. The inbreeding did not cause depression on most studied traits. All the seventeen developed inbred lines and commercial hybrid F1 Sama (control) were evaluated for the most important characteristics during the two seasons 2017 and 2018 under the open field conditions. Significant differences were observed among all evaluated genotypes in all studied characteristics. The highest values were found in S 36 A for plant length, number of leaves/plant, number of days to the first female flower, and number of female flowers. Among the seventeen lines, S 35, S 27 B, and S 36 A gave the highest values for fruit characteristics and yield components. Also, the previous three promising lines gave the highest early and total yield. These inbred lines are potentially promising as a good source for developing new hybrids characterized by outstanding yield quantity and quality.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122221554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EVALUATION AND SELECTION OF SOME ALFALFA GENOTYPES FOR HIGH FORAGE YIELD AND PROTEIN","authors":"Mofeeda A. Seiam, E. S. Mohamed","doi":"10.12816/EJPB.2020.170606","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170606","url":null,"abstract":"Twenty five genotypes of alfalfa were evaluated for forage and dry yields and protein content at Nubaria Research Station. Planting was carried out at October, 5th 2011, and data were taken during the three years 2012, 2013 and 2014. Data of green and dry forage yields and protein content were collected for four seasons in each year during the three years. Results indicated highly significant differences among genotypes for all traits. Dry forage yield and protein content of the studied genotypes had a highly significant reliance on years and seasons. The values of genotypic coefficient of variation (GCV%) and phenotypic coefficient of variation (PCV%) were 6.48 and 6.89% for green forage yield, 5.72 and 7.53% for dry forage yield and 1.43 and 1.73 % for protein percentage, respectively. Broad-sense heritability for green forage yield was 88.38% which was higher than that for dry forage yields and protein content (57.58% and 68.81%), respectively. The average of expected genetic advance value for total green forage yield, total dry yield and protein content were 8.52, 6.06 and 1.65%, respectively. The population G.15 showed common superiority over other populations (46.163, 48.163 and 55.939 t/ha, in the first, second and third year, respectively) in the summer season. In the context, G.5 showed common superiority in the autumn (24.233 and 26.233 t/ha in the first and the second years, respectively) While, G.3 was the best for previous trait (35.135 t/ha) in the third year in autumn season. It could be concluded that, the genotypes G.15, G.3, G.9 and G.14 are promising to improve green and dry forage yield and protein content and could be used to produce as available a new variety via further breeding programs","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115800346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SELECTION FOR DROUGHT TOLERANCE IN DIFFERENT BOTANICAL VARIETIES FROM CUCUMIS MELO L","authors":"A. Hussein, M. Selim","doi":"10.12816/EJPB.2020.170598","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170598","url":null,"abstract":"Drought stress is one of the most serious environmental limitations affecting the growth and productivity of vegetable plants. However, tolerant genotypes improve their physiological mechanisms to cope with this stress. The objective of the current study was to determine the effects of water stress on fifteen melon recombinant inbred lines (RILs) (5 RILs galia type and 3 RILs charentais type follow Cucumis melo var. cantaloupensis, 5 RILs ananas type follow Cucumis melo var. ananas and 2 RILs Egyptian melon type follow Cucumis melo var. egyptiacus). Two irrigation levels (full irrigation and 50% of full irrigation) were imposed after completing the formation of the first three true leaves to determine potential drought tolerance of these RILs during 2017 and 2018 early summer seasons at Kaha Vegetable Research Farm (KVRF), Kalubia Governorate. Leaf area, flowering, yield and its components, fruits number/plant and fruit quality were measured for each RIL under both of full irrigation and drought stress conditions. The RILs were classified as drought tolerant if they had very low reduction or increment rates under drought stress compared to full irrigation condition and vice versa. The experimental results showed that both of the RILs 3G (galia type) and 7Ch (charentais type) had a very low reduction or increment rates under drought stress compared to full irrigation condition in all measured traits. So, both of these RILs had a high drought tolerance, but the remaining RILs were classified as intolerant for drought stress. Data revealed that the RILs 3G (galia type) and 7Ch (charentais type) could be considered as a source for drought tolerance.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114890627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EVALUATION OF SOME DURUM WHEAT CULTIVARS IN THE NEWLY RECLAIMED SANDY SOILS IN MIDDLE EGYPT","authors":"A. Moustafa, A. Hussein","doi":"10.12816/EJPB.2020.170607","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170607","url":null,"abstract":"A filed experiment was conducted in the newly reclaimed lands in El-Minia Governorate (Middle Egypt), Egypt, in the two successive winter growing seasons 2018/2019 and 2019/2020, this study aimed to find the durum wheat cultivars having high yielding potential and suitable for growing under newly reclaimed sandy soils to increase wheat the productivity in Middle Egypt in randomized complete blocks design with four replicates. The results showed that wheat cultivars Beni Sweif 7 and Beni Sweif 1 were t h e earliest cultivars in heading (116.5 and 102.5 days) in t h e first and second seasons, respectively. Beni Sweif 5 was earlier than the other cultivars in maturity (142.8 and 128 days) in both seasons. Beni Sweif 7 had the tallest plants (80.1 and 76.3 cm). Sohag 5 recorded the highest number of spikes m-2 (330.2 and 360). The highest number of kernels spike-1 (54.5 and 49.0 kernels), 1000-kernel weight (50.46 and 41.77gm), grain yield (19.03 and 16.28 ardab faddan-1 ), biological yield (7.525 and 6.191 ton faddan-1 ) and harvest index (37.90 and 39.23 %) were produced by Beni Sweif 1. Moreover, Beni Sweif 1 recorded the highest grain yield at as an average of the two seasons producing 17.65 ardab faddan-1 followed by Sohag 5 (15.06 ardab faddan-1 ) and Beni Sweif 7 (14.55 ardab faddan-1 ) which were higher than the general mean of the seven durum wheat cultivars (14.54 ardab faddan-1 ). Significant and positive correlations were found in the second season only between number of spikes m-2 and days to heading, between grain yield and number of spikes m-2 , and between biological yield and number of spikes m-2 and grain yield. Therefore, durum wheat cultivar Beni Sweif 1 followed by Sohag 5 and Beni Sweif 7 were the best performing by producing the highest grain yield and could be recommended to be grown under new land conditions in Middle Egypt.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121151833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EVALUATION OF YIELD AND ITS COMPONENTS OF SOME PROMISING BREAD WHEAT GENOTYPES UNDER MIDDLE EGYPT CONDITIONS","authors":"A. Hussein, A. Moustafa","doi":"10.12816/EJPB.2020.170608","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170608","url":null,"abstract":"The present investigation was carried out at the experimental farm of Mallawy Agricultural Research Station, Minia Governorate during 2018/2019 and 2019/2020 seasons. The aim of this study was to find out the best wheat genotypes with high yield potential among 18 F6 lines compared to three wheat cultivars in Egypt. The experimental design was randomized complete blocks design (RCBD) with three replicates. The analysis of variance showed significant differences among genotypes for all studied characters except biological yield in the first season. The advanced lines 8, 13 and 14 were the earliest genotypes either in heading (82.4, 80.7 and 81.5 days) or in maturity (135.5, 136.2 and 137.3 days), respectively. Line 4 had the tallest plants (125.8 cm). The highest number of spikes m-2 was recorded by line 16 (485 spikes m-2 ). The highest number of kernels spike-1 was produced by line 3 (80.2 kernels). Line 8 gave the highest 1000-kernel weight (55.07 g). Line 7 produced the highest grain and biological yields and harvest index (28.08 ardab faddan-1 , 11.900 ton faddan-1 and 35.57 %, respectively). Furthermore, the highest mean grain yield/fed was obtained from lines 3, 10, 8, 11, 16 and 14 and they were the most important genotypes for showing excellent performance on grain yield/fed (26.52, 26.52, 26.37, 26.06, 26.06 and 26.05 ardab faddan-1 respectively). They were also better than the best performed released check cultivar Misr 2 (25.59 ardab faddan-1 ). Besides, lines 10, 11, 14 and 16 in this study might be promising for developing heat stress tolerant cultivars. Therefore, the results of the present study concluded that Lines 7, 8, 10, 11, 12, 14, 16 and 18 were superior over the other genotypes in producing higher grain yield and yield attributes and can be used in future breeding programs for the development of superior wheat cultivars at El-Minia Governorate condition","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131389913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SELECTION AGAINST THE EXTREME MALE AND VEGETATIVE MALE PLANTS IN SPINACH AS AN EFFECTIVE APPROACH FOR DEVELOPING A NEW DELAYED BOLTING CULTIVAR","authors":"H. Hamed, A. El-Eslamboly","doi":"10.12816/EJPB.2020.170602","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170602","url":null,"abstract":"The main target of the current study was to develop a new local cultivar of spinach with delayed bolting which characterized by late-flowering based on the multitrait selection for quality traits through the disposal of the male plants in the spinach population and increasing the percentage of females and no bias plants. This study was carried out at Kaha Vegetable Research Farm (Kaluobia Governorate, Egypt). Means, genetic and phenotypic parameters of population performances had been recorded for the characteristics of plant growth, yield and its components as well as chemical compounds. One genotype, Dokki cv. (a local cultivar as original population) was used. The selection program began on the first of September 2014 and continued to the year 2017 (four years), where a comparison experiment was conducted between the original and the selected population during 2018 and 2019-under high temperature in an early season-to measure the progress in achieving the goals of the selection program. The selection program based on multitrait selection under high temperatures in the early season had clear effects on genetic and phenotypic parameters. Moreover, the multitrait selection based on selection indices showed differences consistent with the goal of the selection program in all vegetative characteristics, delay bolting and chemical content of leaves that were significantly improved in the selected population compared to the original population.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"629 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116472290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}