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| 水稻直立穗型与抗倒伏性关系的理论分析与模拟测定 | |
| 引用本文： | 都兴林,方秀琴,刘忱,姜亚伦.水稻直立穗型与抗倒伏性关系的理论分析与模拟测定[J].吉林农业科学,2004,29(2):3-4,20. |
| 作者姓名： | 都兴林 方秀琴 刘忱 姜亚伦 |
| 作者单位： | 1. 吉林省农科院水稻所,吉林,公主岭,136100 2. 吉林省原种繁殖场 3. 德惠市农业技术推广中心 |
| 基金项目： | 吉林省科技厅应用基础研究项目(2000-05-59)部分研究内容 |
| 摘 要： | 以沈阳农业大学育成的直立大穗型超级稻沈农265为试材,结实中后期选择典型直立穗型的中等穗20穗以上,从茎秆基部剪下,测定重心和弯曲力。结果表明,穗型通过弯矩和重心影响抗倒伏性。北方粳稻一般是按穗→穗颈→上部节间→中下部节间→全株的顺序出现弯曲并逐渐倒伏的,穗弯曲在一定程度上可以认为是倒伏的开始。 |
| 关 键 词： | 水稻 穗型 抗倒伏性 理论分析 模拟测定 |
| 文章编号： | 1003-8701(2004)02-0003-03 |
Theoretical Analysis and Simulated Determination on the Relationship between Rice Erect Panicle Type and Lodging Resistance |
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| Abstract: | Shennong 265, a super-rice with erect heavy panicle bred by Shenyang Agricultural University, was selected as trial variety. Over 20 mid-length panicles with typical erect panicle were chosen and cut at the base of stem and their gravity and curved power measured in medium late period of fruiting. The results showed that panicle type influences lodging resistance by curved force and gravity. In northern China, lodging of Japonica rice generally follows the order as follows: at first from panicle to panicle-neck and upper internode, then the plant appears to curve and lodge gradually. The curve of panicle can be seen as the beginning of lodging to some extent. |
| Keywords: | Rice Panicle type Lodging resistance Theoretical analysis Simulated determination |
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