首页> 外文期刊>Applied Ecology and Environmental Research >AN ANALYSIS OF GENETIC ASSOCIATION BETWEEN YIELD AND QUALITY TRAITS IN SEGREGATING POPULATION OF ORYZA SATIVA L.
【24h】

AN ANALYSIS OF GENETIC ASSOCIATION BETWEEN YIELD AND QUALITY TRAITS IN SEGREGATING POPULATION OF ORYZA SATIVA L.

机译:玉米苜蓿族群中产率和质量性状的遗传关联分析。

获取原文
       

摘要

Limited information has been reported on the genetic association of morphological and quality traits of Oryza sativa L. From a total of 50 genotypes, evaluated for genetic diversity using SSR markers, six diverse genotypes were selected for the generation of three crosses. Progenies of these crosses were grown to develop three F2 populations. Morphological and quality traits were recorded and analysed for genotypic and phenotypic correlations followed by the path coefficient analysis from the genotypic correlation. Strongest association was observed for yield per plant and alkali spread value (ranging from - 0.73 to -0.91 for different crosses). It was depicted from path coefficient analysis that length width ratio had a maximum direct effect on yield (ranging from 0.61 to 0.67 for different crosses), and also had a relatively high magnitude of the indirect effect to the yield via plant height, panicle length protein content and length width ratio. Although, minute differences were detected in the strength of association and direct/indirect effects for different populations, the direction of the association always remained the same. The present study showed that direct and indirect effects of traits should be considered for the selection of yield improvement instead of correlation, as a trait having high correlation may have a low direct effect and vice versa.
机译:有限的信息已经报告了Oryza Sativa L的形态学和质量性状的遗传关联。从总共50个基因型,使用SSR标记评估遗传多样性,选择六种不同的基因型用于产生三个十字架。这些十字架的后代种植以发展三种F2种群。记录和分析形态学和质量性状,用于基因型和表型相关性,然后是基因型相关的路径系数分析。每株植物的产量和碱差值(范围为0.73至-0.91,观察到最强的关联)。从路径系数分析中描绘的是,长度宽度比对产率的最大直接效果(范围为0.61至0.67),并且对通过植物高度,穗长蛋白的产量具有相对高的间接效果内容和长度宽度比。尽管在关联强度和不同群体的直接/间接影响的强度中检测到微小差异,但关联的方向总是保持不变。本研究表明,应考虑特异性的直接和间接影响,因为具有高相关性的特征可能具有低直接效应,反之亦然。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号