{"title":"Multivariate analyses, heritability and genotype environment interaction of bread wheat genotypes in Ethiopia","authors":"Genet Atsbeha , Tilahun Mekonnen , Mulugeta Kebede , Teklehaimanot Haileselassie , Kassahun Tesfaye","doi":"10.1016/j.egg.2023.100209","DOIUrl":null,"url":null,"abstract":"<div><p><span><span><span>Considering the genetic variability of bread wheat is essential for the development of improved, high-yielding </span>germplasm<span>. The extent of genetic variability, </span></span>heritability and genotype-environment interaction in 180 bread wheat (</span><em>Triticum aestivum</em>L<em>.</em><span>) genotypes was investigated using field-based phenotyping of 12 agro-morphological traits. The experiment was positioned at alpha lattice design in two replications in Ethiopia at Kulmsa agricultural research center, Meraro (substation of Kulmsa agricultural research center) and Holeta agricultural research center. Moderate heritability and genetic advance were observed in plant height (50 %, 5.5 %), spick length (38 %, 5.3 %), number of kernels per spick (50 %, 5.23 %), and thousand kernel weights (41 %, 4.38 %), respectively. The analysis discovered that the mean performance of grain yield per-plot was the highest at Kulmsa, implying that Kulmsa could be better for bread wheat to perform well. Phenotypic and genotypic associations of grain yield with number of kernels per speculate (0.42 and 0.99), spick weight (0.91 and 0.99), leaf area (0.14 and 0.55) were positive and significant correlated both at phenotypic and genotypic levels. Analysis of variance showed that highly significant differences for environment and genotype in which grain yields were significantly affected by environment, counted 55.22 % of the total variation, whereas genotype and genotype environment interaction accounted for 27.46 % and 17.44 %, respectively. Moreover, genotypes 53, 68 and 168 are high performing valuable genetic resources to be used in further bread wheat breeding program. Inclusively, the study provided valuable information for the bread wheat improvement.</span></p></div>","PeriodicalId":37938,"journal":{"name":"Ecological Genetics and Genomics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ecological Genetics and Genomics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405985423000502","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
引用次数: 0
Abstract
Considering the genetic variability of bread wheat is essential for the development of improved, high-yielding germplasm. The extent of genetic variability, heritability and genotype-environment interaction in 180 bread wheat (Triticum aestivumL.) genotypes was investigated using field-based phenotyping of 12 agro-morphological traits. The experiment was positioned at alpha lattice design in two replications in Ethiopia at Kulmsa agricultural research center, Meraro (substation of Kulmsa agricultural research center) and Holeta agricultural research center. Moderate heritability and genetic advance were observed in plant height (50 %, 5.5 %), spick length (38 %, 5.3 %), number of kernels per spick (50 %, 5.23 %), and thousand kernel weights (41 %, 4.38 %), respectively. The analysis discovered that the mean performance of grain yield per-plot was the highest at Kulmsa, implying that Kulmsa could be better for bread wheat to perform well. Phenotypic and genotypic associations of grain yield with number of kernels per speculate (0.42 and 0.99), spick weight (0.91 and 0.99), leaf area (0.14 and 0.55) were positive and significant correlated both at phenotypic and genotypic levels. Analysis of variance showed that highly significant differences for environment and genotype in which grain yields were significantly affected by environment, counted 55.22 % of the total variation, whereas genotype and genotype environment interaction accounted for 27.46 % and 17.44 %, respectively. Moreover, genotypes 53, 68 and 168 are high performing valuable genetic resources to be used in further bread wheat breeding program. Inclusively, the study provided valuable information for the bread wheat improvement.
期刊介绍:
Ecological Genetics and Genomics publishes ecological studies of broad interest that provide significant insight into ecological interactions or/ and species diversification. New data in these areas are published as research papers, or methods and resource reports that provide novel information on technologies or tools that will be of interest to a broad readership. Complete data sets are shared where appropriate. The journal also provides Reviews, and Perspectives articles, which present commentary on the latest advances published both here and elsewhere, placing such progress in its broader biological context. Topics include: -metagenomics -population genetics/genomics -evolutionary ecology -conservation and molecular adaptation -speciation genetics -environmental and marine genomics -ecological simulation -genomic divergence of organisms