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首页> 外文期刊>African Journal of Biotechnology >Polygenic variations and cause effect relationship in some photo-insensitive recombinant inbred lines (RILs) of Basmati derivative
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Polygenic variations and cause effect relationship in some photo-insensitive recombinant inbred lines (RILs) of Basmati derivative

机译：Basmati衍生物的一些光敏重组近交系（RIL）的多基因变异及其成因关系

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摘要

The present investigation consisted 18 photo-insensitive recombinant inbred lines (RILs) of Basmati derivative developed through disruptive seasonal selection and two check varieties raised during Kharif 2010 to study the polygenic variations in yield and yield attributing characters and their cause and effect relationship. Seven RILs viz., Bidhan Moti 6, 10, 11, 15, 23 and 30 surpassed the check varieties that is, Satabdi (IET 4786) and Khitish (IET 4094) in respect of grain yield and some other yield related traits. The maximum range of variation in mean was observed for floret number/panicle followed by number of grains/panicle, plant height and fertility percentage. The highest estimate of phenotypic and genotypic variances was observed for floret number /panicle followed by number of grains/ panicle and plant height. High estimates of genotypic coefficients of variation (GCV) and phenotypic coefficients of variation (PCV) were obtained for grain yield/plant, number of grains/panicle, panicle weight and floret number/panicle. High heritability was observed for floret number/panicle, fertility percentage, kernel length, panicle weight, grain length, number of panicle/plant, kernel length (L)/breadth (B) (L/B) ratio, grain breadth and days to maturity. Grain yield showed positive significant correlation with number of panicles/ plant, number of grains/ panicle and fertility percentage. Path coefficient analysis revealed that seven characters viz. plant height, days to 50% flowering, number of panicles/plant, panicle length, number of grains/ panicle, grain length and kernel breadth had positive direct effect on grain yield while nine characters namely days to maturity, panicle weight, floret number/panicle, fertility percentage, grain breadth, grain L/B ratio, kernel length, kernel L/B ratio and 1000 grain weight incurred negative direct effect on grain yield.
机译：本研究包括通过破坏性季节选择开发的18种巴斯马蒂衍生物对光不敏感的重组自交系（RIL）和在Kharif 2010年期间提出的两个检查品种，以研究产量和产量归因特性的多基因变异及其因果关系。 Bidhan Moti 6、10、11、15、23和30个七个RIL在谷物产量和其他一些与产量相关的性状方面超过了检查品种Satabdi（IET 4786）和Khitish（IET 4094）。观察到小花数/穗数的平均值的最大变化范围，随后是籽粒/穗数，植物高度和育性百分比。对于小花数/穗数，其次是籽粒数/穗数和植物高度，观察到表型和基因型变异的最高估计值。对于谷物产量/植物，籽粒/穗数，穗重和小花数/穗，获得了高估计的基因型变异系数（GCV）和表型变异系数（PCV）。小花数/穗数，受精率，籽粒长度，穗重，籽粒长度，穗/植物数，籽粒长度（L）/宽度（B）（L / B）比率，籽粒宽度和天数均观察到高遗传力到期。籽粒产量与穗/株数，籽粒/穗数和受精率呈正相关。路径系数分析显示七个字符，即。株高，开花至50％的天数，穗数/株数，穗长，粒数/穗数，粒长和仁宽对籽粒产量有正向直接影响，而成熟期，穗重，小花数/穗，生育率，籽粒宽度，籽粒L / B比，籽粒长度，籽粒L / B比和1000粒重对籽粒产量产生负直接影响。

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