{"title":"埃塞俄比亚不同环境条件下燕麦(Avena sativa L.)基因型饲料产量的单变量统计模型稳定性分析","authors":"Gezahagn Kebede , Walelign Worku , Habte Jifar , Fekede Feyissa","doi":"10.1016/j.egg.2023.100202","DOIUrl":null,"url":null,"abstract":"<div><p>Oat (<em>Avena sativa</em> L.) is one of the most important dual-purpose cereal crops cultivated under diverse environmental conditions in Ethiopia. The fodder dry matter yield stability analysis was conducted using twenty-four oat genotypes across nine environments in a randomized complete block design with three replications. The study aimed to evaluate the magnitude of genotype by environment interaction and determine the stability of oat genotypes for fodder yield using 14 univariate stability parameters. The pooled analysis of variance revealed that the genotype, environment, and their interaction effects had variation (<em>p</em> < 0.001) for fodder yield. The contribution of environment for the total fodder yield variation was the highest (67.45%) followed by the interaction (22.73%) and genotypic (9.82%) effects. The results of stability analysis showed that high fodder yield-producing genotypes had stable performance using the stability parameters of genotypic superiority index (<em>P</em><sub><em>i</em></sub>), yield stability index (YSI), coefficient of determination (<em>R</em><sup><em>2</em></sup>), and coefficient of variability (<em>CV</em><sub><em>i</em></sub>), demonstrating that selection of oat genotypes using these stability parameters would be effective for fodder yield improvement. Moreover, Spearman's rank correlation coefficients indicated that the stability parameters of <em>P</em><sub><em>i</em></sub>, YSI, <em>R</em><sup><em>2</em></sup>, and <em>CV</em><sub><em>i</em></sub> had a significant positive association with fodder dry matter yield (FDMY). On the contrary, the FDMY had non-significant inverse relations with the remaining stability parameters except <em>B</em><sub><em>i</em></sub>, suggesting that the selection of oat genotypes using these stability parameters would not be effective for fodder yield improvement. Therefore, G6, G7, G9, G10, and G23 were desirable genotypes for fodder yield improvement programs in Ethiopia.</p></div>","PeriodicalId":37938,"journal":{"name":"Ecological Genetics and Genomics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Stability analysis for fodder yield of oat (Avena sativa L.) genotypes using univariate statistical models under diverse environmental conditions in Ethiopia\",\"authors\":\"Gezahagn Kebede , Walelign Worku , Habte Jifar , Fekede Feyissa\",\"doi\":\"10.1016/j.egg.2023.100202\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Oat (<em>Avena sativa</em> L.) is one of the most important dual-purpose cereal crops cultivated under diverse environmental conditions in Ethiopia. The fodder dry matter yield stability analysis was conducted using twenty-four oat genotypes across nine environments in a randomized complete block design with three replications. The study aimed to evaluate the magnitude of genotype by environment interaction and determine the stability of oat genotypes for fodder yield using 14 univariate stability parameters. The pooled analysis of variance revealed that the genotype, environment, and their interaction effects had variation (<em>p</em> < 0.001) for fodder yield. The contribution of environment for the total fodder yield variation was the highest (67.45%) followed by the interaction (22.73%) and genotypic (9.82%) effects. The results of stability analysis showed that high fodder yield-producing genotypes had stable performance using the stability parameters of genotypic superiority index (<em>P</em><sub><em>i</em></sub>), yield stability index (YSI), coefficient of determination (<em>R</em><sup><em>2</em></sup>), and coefficient of variability (<em>CV</em><sub><em>i</em></sub>), demonstrating that selection of oat genotypes using these stability parameters would be effective for fodder yield improvement. Moreover, Spearman's rank correlation coefficients indicated that the stability parameters of <em>P</em><sub><em>i</em></sub>, YSI, <em>R</em><sup><em>2</em></sup>, and <em>CV</em><sub><em>i</em></sub> had a significant positive association with fodder dry matter yield (FDMY). On the contrary, the FDMY had non-significant inverse relations with the remaining stability parameters except <em>B</em><sub><em>i</em></sub>, suggesting that the selection of oat genotypes using these stability parameters would not be effective for fodder yield improvement. Therefore, G6, G7, G9, G10, and G23 were desirable genotypes for fodder yield improvement programs in Ethiopia.</p></div>\",\"PeriodicalId\":37938,\"journal\":{\"name\":\"Ecological Genetics and Genomics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-09-29\",\"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/S2405985423000435\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Agricultural and Biological Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ecological Genetics and Genomics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405985423000435","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
Stability analysis for fodder yield of oat (Avena sativa L.) genotypes using univariate statistical models under diverse environmental conditions in Ethiopia
Oat (Avena sativa L.) is one of the most important dual-purpose cereal crops cultivated under diverse environmental conditions in Ethiopia. The fodder dry matter yield stability analysis was conducted using twenty-four oat genotypes across nine environments in a randomized complete block design with three replications. The study aimed to evaluate the magnitude of genotype by environment interaction and determine the stability of oat genotypes for fodder yield using 14 univariate stability parameters. The pooled analysis of variance revealed that the genotype, environment, and their interaction effects had variation (p < 0.001) for fodder yield. The contribution of environment for the total fodder yield variation was the highest (67.45%) followed by the interaction (22.73%) and genotypic (9.82%) effects. The results of stability analysis showed that high fodder yield-producing genotypes had stable performance using the stability parameters of genotypic superiority index (Pi), yield stability index (YSI), coefficient of determination (R2), and coefficient of variability (CVi), demonstrating that selection of oat genotypes using these stability parameters would be effective for fodder yield improvement. Moreover, Spearman's rank correlation coefficients indicated that the stability parameters of Pi, YSI, R2, and CVi had a significant positive association with fodder dry matter yield (FDMY). On the contrary, the FDMY had non-significant inverse relations with the remaining stability parameters except Bi, suggesting that the selection of oat genotypes using these stability parameters would not be effective for fodder yield improvement. Therefore, G6, G7, G9, G10, and G23 were desirable genotypes for fodder yield improvement programs in Ethiopia.
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