| 不同粳稻品种倒伏指数及其相关农艺性状的分析 |
| |
| 引用本文： | 董明辉,张洪程,戴其根,霍中洋,陈卫中.不同粳稻品种倒伏指数及其相关农艺性状的分析[J].吉林农业大学学报,2003,25(2):120-123. |
| |
| 作者姓名： | 董明辉 张洪程 戴其根 霍中洋 陈卫中 |
| |
| 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 |
| |
| 基金项目： | 江苏省农业三项工程项目和江苏省农业科技开发项目资助(BL200013) |
| |
| 摘 要： | 以17个粳稻品种为对象,研究了水稻倒伏指数与各性状的相关关系。结果表明: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,挫折重与倒伏指数相关性最大(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)。
|
| 关 键 词： | 粳稻 品种 倒伏指数 农艺性状 相关关系 |
| 文章编号： | 1000-5684(2003)02-0120-04 |
| 修稿时间： | 2002年11月9日 |
Analysis of Lodging Indices and Correlative Agronomic Characters of Different Japonica Rice Varieties |
| |
| DONG Ming-hui,ZHANG Hong-cheng,DAI Qi-gen,HUO Zhong-yang,CHEN Wei-zhong.Analysis of Lodging Indices and Correlative Agronomic Characters of Different Japonica Rice Varieties[J].Journal of Jilin Agricultural University,2003,25(2):120-123. |
| |
| Authors: | DONG Ming-hui ZHANG Hong-cheng DAI Qi-gen HUO Zhong-yang CHEN Wei-zhong |
| |
| Abstract: | Correlation between lodging indices and agronomic characters of rice was found by studying 17 rice varieties. The results indicated that there were significant variances between lodging indices of different rice variedes( F = 2.139, P < 0.01) .In the course of evolution and improvement, rice culm's resistance to lodging significantly increased, in consistency with performance of high yield at a high level . Among these major agronomic characters related with lodging, resistance to breaking showed the closest correlation with lodging( r = - 0.788 3* * ) . Weight of single culm was negatively correlated with lodging indices( r = -0.485 2** ) significantly. Moreover, significantly positive correlation was found to exist between height of culm and lodging indices. |
| |
| Keywords: | japonica rice variety lodging index agronomic character |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
