| 不同类型小麦品种(系)农艺性状、生理指标与产量关系的多元统计分析 |
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| 引用本文： | 周竹青.不同类型小麦品种(系)农艺性状、生理指标与产量关系的多元统计分析[J].种子,2002(3):18-19,23. |
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| 作者姓名： | 周竹青 |
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| 作者单位： | 孝感学院农学系,湖北,孝感,432100 |
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| 摘 要： | 本文对不同类型小麦品种（系）的11个与产量密切相关的农艺性状,生理指标进行了主成分分析。11个原始指标综合成为三个独立的新指标,分别表示“光合同化因子”、“库与碳氮代谢因子”、“库与氮素营养因子”。主成分值与产量相关分析表明,小麦产量与第一、第二主成分值有极显著正相关关系。通过回归分析,建立了小麦产量与主成分值之间的回归方程。它能较好地反映不同类型品种的产量水平。
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| 关 键 词： | 小麦 品种 农艺性状 生理指标 产量 多元统计 主成分分析 |
Multivariate Statistic Analysis on the Relationships between the Agronomic Characters ,Physiological indexes and Wheat Yields at Different types Wheat Varieties (lines) |
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| Zhou Zhuqing.Multivariate Statistic Analysis on the Relationships between the Agronomic Characters ,Physiological indexes and Wheat Yields at Different types Wheat Varieties (lines)[J].Seed,2002(3):18-19,23. |
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| Authors: | Zhou Zhuqing |
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| Abstract: | The principal component analysis was conducted on the agronomic characters, physiological indexes that had a closely relation with wheat yield at different types wheat varieties (lines). Eleven primitive indexes could be synthesized into 3 new independent indexes:principal component1 (Z 1),Principal component2 (Z 2) and principal component3 (Z 3). They individually mean "photosynthesis assimilation factor", "sink and carbohydrate and nitrogen metabolism factor", and "sink and nitrogen nutrient factor". The result of the correlation analysis about the principal component values and yields showed that, Z 1 and Z 2 had a closely positive correlation with the yields. Regress equation about the yield and principal component values was built by using the Regression Analysis. It could better showed the yield levels of the different varieties. |
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| Keywords: | Wheat(Tritium aestivumv L) Agronomic characters Physiological index Principal component analysis |
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