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首页> 外文期刊>Current Journal of Applied Science and Technology >Assessment of Genetic Diversity of Maize (Zea mays L.) Inbreds Based on Morphological Traits
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Assessment of Genetic Diversity of Maize (Zea mays L.) Inbreds Based on Morphological Traits

机译：基于形态特征的玉米遗传多样性评估玉米（Zea Mays L.）血统

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摘要

The screening of forty eight maize in breds from International Maize and Wheat Improvement Center was carried out to estimate the genetic diversity and the results indicated presence of considerable diversity. The experiment was conducted in a randomized complete block design with three replication and phenotypic data were analyzed using twenty one agro-morphological traits. The forty eight maize in breds grouped into eleven clusters based on Mahalanobis D~(2) statistic. Among them cluster I accommodated maximum number of inbred lines (15) followed by cluster III and V (9). Existence of six solitary clusters showed larger genetic diversity. The character chlorophyll content showed highest contribution towards genetic divergence followed by anthesis to silking interval, cob girth, cob weight, hundred grain weight, number of kernels per row, days 75 per cent brown husk, plant height at 90 DAS, cob length and number of kernel rows per cob. Based upon the divergence studies suggesting crossing may be made between genotypes of cluster VIII (CAL1428) and cluster X (ZL154357, CAL1467, ZL153785, CAL1422, and ZL154346) and the hybrid in these cluster could be used as donor parents for new single cross maize hybrid development for improving yield.
机译：进行了来自国际玉米和小麦改善中心的繁殖的四十八种玉米的筛查，以估计遗传多样性，结果表明存在相当多样化。该实验在随机完全嵌段设计中进行了三种复制，并使用20个农业形态特征分析了表型数据。基于Mahalanobis D〜（2）统计的繁殖中的四十八种玉米分组为11个集群。其中群集I容纳最大数量的自交系（15），然后是群集III和V（9）。六个孤立簇的存在表现出更大的遗传多样性。叶绿素含量对遗传分歧的贡献最高，随后波动间隔，玉米棒子，玉米棒体重，百粒重量，每行粒数，天75％棕色稻壳，植物高度为90 das，玉米棒长和数量每个胶带的内核行。基于发散研究，建议交叉可以在群体VIII（CAL1428）和群体X（ZL154357，CAL1467，ZL153785，CAL1422和ZL154346）之间以及这些簇中的杂种可以用作新的单一交叉玉米的供体父母杂交发展提高产量。

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