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首页> 外文期刊>Pakistan journal of botany >Investigation and comparison of some morphological traits of the soybean populations using cluster analysis
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Investigation and comparison of some morphological traits of the soybean populations using cluster analysis

机译：聚类分析调查和比较大豆种群的一些形态性状

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A study was performed on 92 genotypes of soybean including 4 checks during the Kharif season (July-Oct) of 2003. High values of the Shannon index for flower colour (0.54), pod colour (1.12), plant type (0.88), seed luster (0.84), seed size (1.08) and seed colour (0.91) revealed greater variability in these qualitative traits. High CVs were recorded in leaf area (44.81%), pods plant-1(29.47%), branches plant-1(31.72%), 100-seed weight (39.01%) and grain yield plant-1(46.55%) with a wide range of 28-146, 26-130, 2.4-11, 4.2-21.5 and 4.04-28.23 respectively indicating a high level of diversity among the accessions for these traits. Grain yield was positively and highly significantly correlated with leaf area, plant height, pods plant-1, branches plant-1and 100-seed weight suggesting thereby that phenotypic selection could be made on the basis of these characters. Means of the clusters showed that the accessions in cluster III were not only late maturing and high yielding but also had more pods plant-1, branches plant-1and 100-seed weight. However, accessions in cluster I showed some promise to earliness with high grain yield and oil. The physical distinctness, on the basis of cluster analysis, between Pakistani and US/AVRDC accessions in this study reflect that the introgression of US and AVRDC accessions to Pakistani breeding programme should broaden Pakistani soybean germplasm diversity. Whereas no clear relationship was found between genetic diversity and geographical origins because accessions from one origin entered into more than one cluster.
机译：对2003年Kharif季节（7月至10月）的92种大豆基因型进行了研究，包括4次检查。Shannon指数的花色（0.54），豆荚色（1.12），植物类型（0.88），种子的高值光泽（0.84），种子大小（1.08）和种子颜色（0.91）显示出这些定性性状的较大变异性。在叶片面积（44.81％），豆荚植物1（29.47％），树枝植物1（31.72％），100种子重量（39.01％）和谷物产量植物1（46.55％）中记录到高CV。 28-146、26-130、2.4-11、4.2-21.5和4.04-28.23的较宽范围分别表明这些性状的材料之间具有很高的多样性。籽粒产量与叶面积，株高，豆荚植物1，豆科植物1和100种子重量呈正相关，且高度相关，表明可以根据这些特性进行表型选择。聚类结果表明，聚类III的种质不仅晚熟且高产，而且具有更多的豆荚株1，分枝株1和100粒重。但是，第一类的种质显示出对谷物高产，高油的早熟的希望。在本研究中，基于聚类分析，巴基斯坦和美国/ AVRDC品种之间的物理差异反映了美国和AVRDC品种对巴基斯坦育种计划的渗入应该扩大巴基斯坦大豆种质的多样性。遗传多样性与地理起源之间没有明确的关系，因为来自一个起源的种质进入了多个集群。

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