| 杂交中稻根系及地上部性状对结实率的通径分析 |
| |
| 引用本文： | 徐富贤,郑家奎,朱永川,王贵雄.杂交中稻根系及地上部性状对结实率的通径分析[J].种子,2003(2):5-6. |
| |
| 作者姓名： | 徐富贤 郑家奎 朱永川 王贵雄 |
| |
| 作者单位： | 四川省农业科学院水稻高梁研究所,四川,泸州,646100 |
| |
| 基金项目： | 国家农业科技跨越计划资助项目 |
| |
| 摘 要： | 以21个籼型杂交中稻组合为材料，用标准化的基因型值进行了根系及地上部植株的21个性状对结实率的通径分析。结果表明：4叶期单株分聚数、分聚盛期单株分聚数、分聚盛期单株干重、分聚盛期发根力、齐穗期LAI、最高苗数和着粒数7个性状对结实率的偏相关系数达到显著或极显著水平，高结实率品种要求分聚力和发根力强，齐穗期LAI高，穗子偏小。
|
| 关 键 词： | 杂交中稻 根系性状 地上部性状 结实率 通径分析 基因型值 水稻 |
Path Analysis Between Characters of Root and over Ground and Grain Set Rate of Hybrid Midseason Rice |
| |
| Xu Fuxian,Zheng Jiakui,Zhu Yongchuan,Wang Guixiong.Path Analysis Between Characters of Root and over Ground and Grain Set Rate of Hybrid Midseason Rice[J].Seed,2003(2):5-6. |
| |
| Authors: | Xu Fuxian Zheng Jiakui Zhu Yongchuan Wang Guixiong |
| |
| Abstract: | combinations of Indica Type Hybrid Mid season Rice were used as materials and the path analysis method was adopted to analyze the effect of characters of root and over ground on grain set rate. The conclusions were obtained as follows:there were 7 partial correlation coefficients between characters of root and over ground and grain set rate at 0.05 or 0.01 significant level, they are tillers per plant of 4th leaf stage and quickly tillering stage, dry matter weight per stem and root growth ability of quickly tillering stage, LAI at full heading stage, maximum seedlings number and grains per panicle. The main characters of combinations with high grain set rate was that there were good root growth ability, good tillering ability, high LAI at full heading stage as well as small grains per panicle. |
| |
| Keywords: | Hybrid mid season rice Plant character Grain set rate Path analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
