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Correlation and path co-efficient analysis for genetic response of seed yield traits at varying spacing in rice cultivars

机译：水稻不同间距种子产量性状遗传响应的相关和路径系数分析

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摘要

Genotypic and phenotypic correlation and path-coefficient analysis were worked out for grain yield, seed yield and yield contributing components in rice cultivars sown at varying spacing under normal condition. Among the different characters, number of productive tillers per plant was significantly correlated with grain yield per plot in positive direction at both spacing. 1000 grain weight and grain yield per plot showed significant positive association with seed yield. Therefore, importance of 1000grain weight should be given in getting seed recovery in rice genotypes. Path analysis further revealed that at space planting grain yield per plot showed maximum direct effect both at genotypic (0.993) and phenotypic level (1.640), its association withseed yield was also significantly positive. So, emphasis should be given on 1000 grain weight under closer spacing but both for 1000-grain weight and grain yield per plot under space planting to get higher seed recovery.
机译：在正常条件下以不同间距播种的水稻品种，进行了基因型和表型的相关性及通径系数分析，以分析其籽粒产量，种子产量和产量贡献成分。在不同的性状中，在两个间距上，每株生产性耕作的数量与每块地的产量正相关。每小区1000粒重和籽粒产量与籽粒产量呈显着正相关。因此，在获得基因型水稻种子时，应重视1000粒重的重要性。通径分析进一步表明，在太空种植中，每块地的单产在基因型（0.993）和表型水平（1.640）均表现出最大的直接效应，其与种子产量的关联也显着为正。因此，应着重于在较小间距下的1000粒重，但在空间播种下每块地1000粒重和谷物产量均应获得较高的种子回收率。

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