Egyptian Journal of Plant Breeding最新文献

{"title":"PERFORMANCE AND STABILITY OF SOME GRAIN SORGHUM GENOTYPES UNDER DIFFERENT ENVIRONMENTAL CONDITIONS","authors":"Y. Kady, O. A. A. bd Elraheem, H. Hafez","doi":"10.12816/EJPB.2020.170592","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170592","url":null,"abstract":"Evaluation of sorghum genotypes under different environments is essential for testing stability of performance and degree of adaptation which are important goals of breeding programs. Fifteen grain sorghum genotypes (Sorghum bicolor (L.) Moench) of diverse origins were evaluated during 2019 and 2020 growing seasons at three locations, namely Shandaweel, New valley and Toshki Agric. Res. Stations. The joint regression analysis showed highly significant differences among genotypes and among environments, as well as significant genotype x environment interaction, indicating differential responses of genotypes to changes in environment for the studied traits. The G × E interactions were linear functions to the environment which were significant for all the studied entries. The evaluation parameters used were mean performance, regression coefficient and the mean squares deviation from regression. Stability analysis showed that the most stable genotypes were No. 15 for days to 50% flowering, No. 2 for plant height, No. 2, 9 and 13 for protein content, No. 10 for 1000-grain weight and genotype No. 11 for grain yield/plant.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130686073","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 STUDIES AND EVALUATION OF SOME CUCUMBER GENOTYPES FOR CUCUMBER MOSAIC VIRUS (CMV) RESISTANCE AND SOME OTHER TRAITS","authors":"A. Rabou, Abeer M. Abo El-Wafa, Nahla A. El-Magawry","doi":"10.12816/EJPB.2020.170585","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170585","url":null,"abstract":"Cucumber (Cucumis sativus L.) is one of the important vegetable crops in Egypt and the selection and planting of genotypes that are resistant to CMV is one of the most important components in an integrated disease control program. So, the objectives of this study were the identification of the resistance to CMV and estimating the genetic variance among ten cucumber inbred lines. This study was conducted during the period from 2017 to 2020. Selfing pollination to produce inbred lines and crossing to produce F1'S were carried out in the greenhouse at Kaha Vegetable Research Farm (K.V.R.F), Kalubia at spring season in 2017, and horticultural evaluation of the inbred lines and their hybrids was carried out in the greenhouse at Kaha Vegetable Research Farm and Ismailia Experimental Station at spring season in 2020, while evaluation of the inbred lines was carried out at Ismailia Experimental Station during (2017/2018) and evaluation of the selection inbred lines and their hybrids to CMV was carried out under greenhouse conditions at Ismailia Experimental Station during (2018-2019). In order to determine the genetic polymorphism and discriminate among these genotypes, RAPD analysis was conducted on the isolated DNA samples from each genotype. Viral diseases are important problem for production of cucumber in Egypt. The most important of these viruses in Egypt is Cucumber mosaic virus (CMV). The CMV was tested serologically using indirect ELISA. CMV has a wide host range belonging to 4 families. Finger prints of the studied genotypes were conducted using 3 RAPD primers. The produced hybrids were infected by CMV. P1 and P7 are the best inbred lines due to their high yielding ability, good fruit and vegetative traits. But only P1 is considered the most promising inbred line, due to its resistance to CMV. These lines could be used in CMV resistance breeding programs to be released as a new cultivar, which possesses both high yielding and resistance. The general performances of the F1 hybrids reflected the presence of three degrees of dominance effects complete, partial to over dominance and absence of dominance.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121517911","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":"CROSSING AMONG SOME EGYPTIAN MELON LANDRACES FOR OBTAINING NEW HYBRIDS WITH GOOD YIELD AND QUALITY","authors":"M. Shahein, Shereen Elsayed, Y. T. Ellethy, S. A. A. Samea","doi":"10.12816/EJPB.2020.170597","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170597","url":null,"abstract":"This study was conducted during the period from 2012 to 2014 at Kaha vegetable research farm (KVRF), Qalubia Governorate to evaluate five melon landraces [Quena 2(1), BeniSwif 1(2), Fayoum(3), Ismailawi(4), Giza- Berkash 2(5) ] and diallel cross toproduce hybrids in the summer planting date . The results showed significant differences among the evaluated melon landraces and hybrids and revealed a wide range of variation for this trait. The two F1 hybrids (2x3 and 2x4) had the lowest significant number of days to flowering (i.e flowering earliness) across significant number of days to ripening in 2014 among the evaluated ecotypes was produced by the melon landraces and hybrids 1 , 3, 2 , and 1x4) without across over all evaluated melon landraces and hybrids The lowest significant differences among them.F1 hybrids (4x1, 4x2, 3x2 and 3x4)produced the highest significant total yield/ plant across all evaluated melon landraces and hybrids. In contrast, there were no significant differences among them with respect to total yield. In 2014, Three F1 hybrids (2x3, 5x1 and 4x5) produced the highest significant TSS value (13.5, 13.4 and 12.0%, respectively) across all evaluated entries. Besides, Hybrids 2x3, 5x3, 2x5 and 3x5 produced the highest significant values for netting but without significant differences among these three F1 hybrids. In brief, F1 hybrid (2x3) could be recommended as the best for several desired traits.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116408306","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":"PERFORMANCE OF SOME BREAD WHEAT CULTIVARS UNDER NEW LAND CONDITIONS AT MIDDLE EGYPT","authors":"A. Moustafa, A. Hussein","doi":"10.12816/EJPB.2020.170584","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170584","url":null,"abstract":"Two field experiments were carried out at El-Minia governorate (Middle Egypt) during 2018/2019 and 2019/2020 to evaluate the performance of 14 bread wheat cultivars namely; Gemmiza 9, Gemmiza 10, Gemmiza 11, Gemmiza 12, Sakha94, Sakha 95, Giza 168, Sids 12, Sids 14, Giza 171, Misr 1, Misr 2, Misr 3, and Shandaweel 1 under newly reclaimed lands. Randomized complete block design with four replications was used. The differences among bread wheat cultivars for all studied traits were significant in both seasons except days to heading in the second season and harvest index in both seasons. The results indicated that Gemmiza 12 recorded the lowest number of days to heading. Shandaweel 1 showed the earliest maturity than the other cultivars. Gemmiza 9 and 10 recorded the tallest plants in first season and Gemmiza 9 and Sakha 95 in the second season. Sids 12 produced the highest number of kernels spike-1 (59 kernels) in the first season, while it was (55 kernels) for Sids 12 and Misr 1 in the second season. Misr 3 recorded the highest number of spikes m-2. Giza 171 produced the highest values for 1000- kernel weight in both seasons (48.64 g and 39.01 g, respectively). The highest grain yield was obtained from Misr 3 in both seasons without significant differences among cultivars Gemmiza 10, Gemmiza 11, Sakha 94, Sakha 95, Sids 12, Misr 1, and Misr 2 in the first season and among Misr 2 and Giza 171 without significant differences in the second season. Meanwhile, Misr 3 recorded the highest biological yield in both seasons. Shandaweel 1 recorded the lowest number of grain filling duration (13.0 and 18.0), growing degree days (GDD) at grain filling stage (157.7 and 273.2), and growing degree days (GDD) at maturity stage (1317.8 and 1363.2) in both seasons. Significant and positive correlations were found between grain yield and biological yield, grain filling duration with growing degree days at filling stage and growing degree days at maturity stage, and growing degree days at filling stage with growing degree days at maturity stage. These results indicated the superiority and the suitability of Misr 3 and Misr 2 and high potentiality under the newly reclaimed lands at El-Minia Governorate.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122321761","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":"CROSSING AMONG SOME MELON INTRODUCED GENOTYPES FOR OBTAINING NEW HYBRIDS WITH BEST YIELD AND QUALITY","authors":"M. Shahein, Shereen Elsayed, Y. T. Ellethy, S. A. A. Samea","doi":"10.12816/EJPB.2020.170594","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170594","url":null,"abstract":"This study was conducted during the period from 2012 to 2014 at Kaha Vegetable Research Farm (KVRF), Qalubia governorate to evaluate six introduced genotypes of melon (PI 414723, PI 124111, PI 140471, PI 313970, PI 124112, PI 140417) and their diallel F1 hybrids in summer planting season. The results showed that the introduced genotype (1) and the hybrids 2x1 and 2x4 recorded the highest significant values for average plant length compared to the other introduced genotypes and the hybrids in summer season 2014 without significant differences between them 4x1, 5x3 and the hydride Primal produced the highest significant TSS values over all evaluated introduced genotypes and hybrids without significant differences between them. genotype 4 and hybrid 3x1 recorded the lowest significant TSS values, 6 The introduced genotypes and hybrids displayed the largest number of relevant fruits per plot (82) among all genotypes and hybrids introduced , but the lowest significant Fruits number per plot was found in 1x4 and 3x1. without significant differences between them. Mean while, the hybrid 4x5 produced the highest significant total yield per plant over all evaluated introduced genotypes and hybrids.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133788962","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":"RESPONSE OF SOME EXOTIC BREAD WHEAT GENOTYPES TO REDUCED IRRIGATION IN NORTH DELTA REGION OF EGYPT","authors":"W. Farhat, M. T. Shehab-Eldeen","doi":"10.12816/EJPB.2020.170588","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170588","url":null,"abstract":"Water deficit is one of the most constraints to wheat production in Egypt and worldwide. Therefore, sixteen exotic lines and two local cultivars of bread wheat were evaluated under normal (five irrigation) and water deficit stress (the planting irrigation only) conditions during 2017/18 and 2018/19 growing seasons at Sakha Agricultural Research Station. The current study aimed to enhance the breeding program with lines tolerant to water deficit stress. The two seasons and two water treatments showed sufficient genetic variability among the studied genotypes. Most studied traits showed higher values in the second season compared to the first one. All mean values of the studied traits decreased under water deficit stress. High values of grain and biological yields, number of spikes m-2 , grain filling period and rate were the most contributors to water deficit stress tolerance. line 1, line 16, line 15 and line 11 had high yielding ability and relative tolerance under water deficit stress. Misr 1 and Giza 171 cultivars were proved to be suitable cultivars under reduced irrigation. The exotics line 3, line 5 and line 9 could be used to enhance wheat breeding program for water deficit stress tolerance.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126756409","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":"GGE-BIPLOT ANALYSIS OF YIELD STABILITY IN MULTI-ENVIRONMENTS OF SOME BREAD WHEAT GENOTYPES IN EGYPT","authors":"A. Elhamid","doi":"10.12816/EJPB.2020.170589","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170589","url":null,"abstract":"Seven promising bread wheat lines at six different locations, represented different ecological zones obtained from the national wheat research program and were tested with two new commercial cultivars Misr3 and Sakha 95. in a yield trial in two successive seasons (2017/2018 and 2018/2019). The experimental design was a randomized complete block design with four replications. Stability parameters of grain yield were calculated for the new promising lines and the two commercial cultivars. The results showed that the genotypes G2, G4, G5, G6 and G7 did not differ significantly out yield the two checks cultivars, Misr3 and Sakha 95. Line G6 and Misr 3 showed more stability in grain yield compared to the other genotypes. GGE-biplot analysis showed that it is preferable to grow the genotype G 6 in the regions of Sakha, Sids and Shandaweel, and the cultivar Sakha 95 at Nubaria and Etay-El-Barood regions, while genotype G7 was the best when grown in El-Mattana area. The genotype G6 was considered an ideal genotype.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133913220","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":"BREEDING AND PRODUCING NEW INBRED LINES AND F1 HYBRIDS OF PICKLING CUCUMBERS","authors":"A. Rabou, Nahla A. El-Magawry","doi":"10.12816/EJPB.2020.170586","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170586","url":null,"abstract":"Pickling cucumber is considered one of the important types of vegetables in Egypt, but there is less interest in it; this due to the lack of hybrids charactercterized with high productivity and good commercial traits. Production can be increased through increasing genetic diversity and thus productivity via plant breeding. The present experiment was conducted at Kaha Vegetable Research Farm, Wady El- Natroon and Ismailia during 2016-2020. Six cucumber genotypes from Netherland and Sweden Gene Banks (18-CGN, 8-CGN, 16-CGN, 11-NGB, 15-CGN and 21-NGB) were selfed pollinated for 6 generations to have pure inbred lines. They crossed by half diallel method to produce 15 F1 hybrids. Evaluation of the 6 parents, 15 produced hybrids and two commercially hybrids (Livina F1 and Magdalina) was carried out for fruit length, fruit diameter, fruit weight, number of female flowers per node, node of the first female flower, number of fruits/plant and total yield/plant was done. Heterosis, heritability, inbreeding depression and number of genes controlling studied traits were estimated. The results in the cross P1 x P5 showed the highest mid-parent heterosis values for studied characters that were positive by contrast. Most high-parent heterosis values for studied characters were negative. High inbreeding depression was observed. The inbreeding depression was positively and negatively lower significant indicating the presence of vigor in F2. High estimates of narrow and broad sense heritability were observed in the cross P1 x P5, but were moderate for number of female flowers per node and node of the first female flower. Concerning number of effective genes controlling most characters were found to be 1-2 pairs of genes (or group of genes); only fruit weight and node of the first female flower traits controlled by (4) and (9) additive genes respectively.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131277990","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":"FORAGE YIELD, QUALITY CHARACTERS AND GENETIC VARIABILITY OF SOME PROMISING EGYPTIAN CLOVER POPULATIONS","authors":"Mofeeda A. Seiam, E. S. Mohamed","doi":"10.12816/EJPB.2020.170591","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170591","url":null,"abstract":"The present study was conducted to evaluate eight berseem populations (selected for high forage yield) with five check cultivars and to estimate the relationships between yield, some growth parameters, quality characters, genetic variance, phenotypic variance, heritability, genotypic and phenotypic coefficient of variability in the experimental research station at Nubaria region, Al-Behira government across the two growing seasons 2015/2016 and 2016/2017. The results could be summarized from the combined analysis of the two seasons which indicated that the cultivar Helaly recorded the highest fresh and dry yield (71.065, 9.783 kg/plot) followed by the promising Pop.4 (70.579, 9.699 kg/plot) and Pop.6 (69.388, 9.683 kg/plot), respectively with insignificant differences. Helaly, Gemmiza- 1 and Pop.6 recorded the highest values of dry leaf/stem ratio with insignificant differences. The highest fresh leaf/stem ratio was obtained from Helaly, Pop.4 and Pop.6. While Pop.1 and Giza-6 recorded the lowest values of fresh and dry leaf/stem ratio. However, mean percentage of crude protein (CP %) and digestible crude protein (DCP %) were lower in Serw- 1 and Pop.1, while, Pop.46 and Gemmiza-1 recorded the highest values of CP% and DCP%. Helaly, Pop.46 and Gemmiza-1 gave the highest values of crude fiber (CF%) and ash%. Heritability was high for all traits studied. Fresh leaf/stem ratio showed the highest heritability (97.50%) followed by dry leaf/stem ratio (96.38%). A positive correlation was obtained between ash% with dry leaf/stem ratio and dry leaf/stem ratio (r = 0.87** and r = 0.86**), and between crude fiber with dry leaf/stem ratio and dry leaf/stem ratio (r = 0.90** and r = 0.84**). Besides, there was highly significant correlation between crude fiber% and ash% (r =-0.94**).The results reflected that Pop.4 and Pop.6 did not differ significantly from the commercial cultivar Helaly, and therefore it is recommended to multiply and use them in the breeding program to improve the productivity of Egyptian clover.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132160944","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 STUDIES ON GRAIN YIELD AND ITS COMPONENTS IN TWO BREAD WHEAT CROSSES","authors":"S. Eldeen","doi":"10.12816/EJPB.2020.170593","DOIUrl":"https://doi.org/10.12816/EJPB.2020.170593","url":null,"abstract":"This research was carried out at the Experimental Farm of Sakha Agricultural Research Station, Kafr El- Sheikh, Egypt, during the three growing seasons of 2013 / 1 4, 2014 / 1 5 and 2015 / 1 6 to estimate genetic variance components and type of gene action controlling the inheritance of yield and its component characters, using six- population model. Genetic materials used in this study included six populations (P1 , P2 , F1 , F2 , BC1 and BC2 ) of the two bread wheat crosses (Sakha 95 X Giza171) and (Sakha 95 X Line 1). Results revealed that, the mean effects (m) were highly significant for all characters in both crosses, indicating that these characters are quantitatively inherited. Also, the relative importance of additive and dominance effects varied with characters and crosses. The most predominant type of epistasis was additive X dominance (ad) and dominance X dominance (dd) in most characters, proving that these characters were greatly affected by these types of gene action. Broad - sense heritability values were high for all studied characters in both crosses, while narrow sense heritability, their values were ranged from low to moderate for the two crosses. Based on the obtained results, both crosses could be useful in the breeding progra m to develop promising lines. However, heritability and expected genetic advance from selection were higher in magnitude in the first cross (Shaka 95 X Giza 171), indicating that this cross could be more useful in isolating new promising lines and hence development of new cultivar(s) having high yielding ability.","PeriodicalId":282479,"journal":{"name":"Egyptian Journal of Plant Breeding","volume":"488 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129832798","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}