70份大麦种质资源遗传多样性评价
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赵锋, 包奇军, 潘永东, 柳小宁, 张华瑜, 牛小霞
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Comprehensive Evaluation of Genetic Diversity in 70 Barley Germplasms
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Zhao Feng, Bao Qijun, Pan Yongdong, Liu Xiaoning, Zhang Huayu, Niu Xiaoxia
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表4 大麦种质资源主要农艺性状主成分分析
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Table 4 Principal component analysis of main agronomic traits of barley germplasm resources
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| 性状Trait | PC1 | PC2 | PC3 | PC4 | | 株高Plant height | 0.83 | -0.11 | -0.21 | 0.27 | | 穗长Spike length | 0.59 | 0.56 | 0.01 | -0.33 | 第一茎节长 The first internode length | 0.65 | 0.67 | -0.09 | 0.11 | 第二茎节长 The second internode length | 0.69 | 0.62 | -0.03 | 0.05 | 穗下茎节长 Internode length below spike | 0.57 | -0.55 | -0.21 | 0.51 | | 单株穗数Spike number per plant | -0.69 | 0.33 | -0.44 | 0.05 | | 单穗粒重Grain weight per spike | 0.16 | 0.12 | 0.89 | 0.15 | | 主穗粒数Grain number per spike | 0.41 | -0.34 | 0.78 | -0.14 | | 千粒重1000-grain weight | -0.53 | 0.50 | 0.21 | 0.54 | | 小区产量Grain yield per plot | -0.63 | 0.28 | 0.47 | 0.12 | | 特征值Eigenvalue | 3.60 | 2.03 | 1.95 | 0.81 | | 贡献率Contribution rate (%) | 35.96 | 20.34 | 19.45 | 8.07 | 累计贡献率 Cumulative contribution rate (%) | 35.96 | 56.30 | 75.75 | 83.83 |
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