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首页> 外文期刊>Crop Research >Genetic variability and multivariate analysis in finger millet (Eleusine coracana) germplasm for yield characters
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Genetic variability and multivariate analysis in finger millet (Eleusine coracana) germplasm for yield characters

机译：谷子（Eleusine coracana）种质的遗传变异和产量分析

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摘要

Finger millet is the third most important millet grown in many states of India under diverse situations of soil, temperature and rainfall. Genetic improvement through conventional breeding approaches depends mainly on the availability of the diverse germplasm and the amount of genetic variability present in the population. In the present study, 150 finger millet germplasm had been studied for their variability and diversity for 12 characters. The analysis of variance showed highly significant differences among the genotypes for all the 12 characters studied. High heritability and high genetic advance were noted for number of tillers and single plant yield, indicating the possibility of improvement for this trait by simple selection. Genetic diversity among 150 finger millet accessions was worked out using Mahalanobis D-2 statistics. Based on genetic distance, these genotypes were grouped into 18 clusters. The present study concluded that considerable amount of genetic diversity is present among the entries for yield and yield attributes. Fourteen solitary clusters were superior viz., II, III, V, VI, VIII, X, XI, XII, XIII, XIV, XV, XVI, XVII and XVIII. Intercrossing between genotypes of these diverse clusters would generate a broad spectrum of variability for effective selection in the segregating generations for the development of high yielding cultivars.
机译：手指小米是印度许多州在土壤，温度和降雨情况不同的情况下种植的第三重要小米。通过常规育种方法进行的遗传改良主要取决于多样化种质的可用性以及种群中存在的遗传变异量。在本研究中，已经研究了150个小米种质的12个字符的变异性和多样性。方差分析显示，在所研究的全部12个字符中，基因型之间的差异非常显着。注意到分till数和单株产量的高遗传力和高遗传优势，表明通过简单选择可以改善该性状。使用Mahalanobis D-2统计数据确定了150个小米谷子品种的遗传多样性。根据遗传距离，将这些基因型分为18个簇。本研究得出结论，在产量和产量属性的条目之间存在相当数量的遗传多样性。十四个单独的群集是上层，即II，III，V，VI，VIII，X，XI，XII，XIII，XIV，XV，XVI，XVII和XVIII。这些不同簇的基因型之间的交叉杂交将产生广泛的变异性，以便在分离世代中进行有效选择以开发高产品种。

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