| 不同粳稻品种倒伏指数及其相关农艺性状分析 |
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| 引用本文： | 霍中洋,董明辉,张洪程,戴其根,陈卫中.不同粳稻品种倒伏指数及其相关农艺性状分析[J].西南农业大学学报,2003,25(3):234-237. |
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| 作者姓名： | 霍中洋 董明辉 张洪程 戴其根 陈卫中 |
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| 作者单位： | [1]扬州大学农学院，江苏扬州，225009 [2]江苏省农林厅林业局，江苏南京，210000 |
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| 基金项目： | 江苏省农业三项工程项目，江苏省农业科技开发资助项目(BL 200013) |
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| 摘 要： | 不同粳稻品种(系)间倒伏指数存在显著性差异(F＝2．139，P＜0．01)。粳稻品种在演进、改良进程中，稻株茎秆抗倒伏能力明显提高，抗倒性与高产性能够在较高水平上保持协调。在与倒伏有关的几个主要农艺性状中，挫折重与倒钱指数相关性最大(r＝-0.7883^**)。单茎干物重与倒伏指数亦呈显著负相关(r＝—0．4852^**)，株高则与倒伏指数存在显著正相关(r＝0．5535^*)。
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| 关 键 词： | 粳稻品种 倒伏指数 农艺性状 |
| 文章编号： | 1000-2642(2003)03-0234-04 |
| 修稿时间： | 2002年12月9日 |
ANALYSIS OF LODGING INDEX AND SOME RELATED AGRONOMIC CHARACTERS IN JAPONICA RICE CULTIVARS |
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| HUO Zhong-yang,DONG Ming - hui,ZHANG Hong - cheng,DAI Qi-gen,CHEN Wei - zhong.ANALYSIS OF LODGING INDEX AND SOME RELATED AGRONOMIC CHARACTERS IN JAPONICA RICE CULTIVARS[J].Journal of Southwest Agricultural University,2003,25(3):234-237. |
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| Authors: | HUO Zhong-yang DONG Ming - hui ZHANG Hong - cheng DAI Qi-gen CHEN Wei - zhong |
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| Abstract: | Significant differences were found to exist among various cultivates/lines of japonica rice ( F = 2.139, P < 0.01). Resistance of the rice culm to lodging substantially improves in the development and evolution of rice cultivars and the harmony between lodging resistance and high yield potential is maintained at a high level. Of the lodging- related characters studied, potence of resistance to being broken is highly significantly correlated with lodging, r being - 0.7883* * ). Weight/culm and plant height are significantly correlated with lodging, the correlation coefficient T being -0.4852* * and 0.5535* , respectively. |
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| Keywords: | japonica rice lodging index agronomic character |
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