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首页> 外文期刊>Crop Research >Genetic variability in morphological and quantitative characters in Niger (Guizotia abyssinica) germplasm.
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Genetic variability in morphological and quantitative characters in Niger (Guizotia abyssinica) germplasm.

机译：尼日尔（Guizotia abyssinica ）种质的形态和数量特征的遗传变异。

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摘要

Variability in niger was studied in 36 genotypes for morphological characters like capitulum size, leaf colour, lodging tendency and seed colour, quantitative characters viz., days to 50% flowering, plant height, number of primary branches per plant, days to maturity and seed yield per plant as per standard evaluation system for niger by NBPGR. The germplasm lines were grouped based on capitulum size into small (19), medium (17); leaf colour into green (22), light green (14), lodging tendency into lodging (21), non-lodging (15); and seed colour into brown (5), dark brown (8) and black colour (23). High genotypic coefficient of variation for seed yield per plant (28.21), moderate variability in days to 50% flowering (10.59) and plant height (11.79) was observed among the germplasm studied. Plant height expressed high heritability (95.4) coupled with high expected genetic advance (22.8) and days to 50% flowering exhibited high heritability (95.7) with moderate expected genetic advance (10.8) indicating additive gene action for these characters may be useful in further population improvement of niger.
机译：在36种基因型中研究了尼日尔的变异性，包括形态特征，如头花大小，叶片颜色，倒伏趋势和种子颜色，定量特征，即开花至50％的天数，植物高度，单株初生枝数，成熟和种子天数根据NBPGR针对尼日尔的标准评估系统，获得每株植物的产量。根据种首大小将种质系分为小（19），中（17）;叶色变成绿色（22），浅绿色（14），倒伏倾向变成倒伏（21），不倒伏（15）;种子颜色分为棕色（5），深棕色（8）和黑色（23）。在所研究的种质中，观察到单株种子产量的高基因型变异系数（28.21），开花至50％的天数具有适度的变异性（10.59）和株高高达11.79。株高表现出较高的遗传力（95.4）加上较高的预期遗传进展（22.8），开花至50％的天数显示出较高的遗传力（95.7）和中等预期的遗传进展（10.8），表明这些字符的加性基因作用可能对进一步的种群有用改善尼日尔。

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