| 茎秆挠度对评价小麦抗倒伏能力的实验研究 |
| |
| 引用本文： | 张凯,吴晓强,宗可栋. 茎秆挠度对评价小麦抗倒伏能力的实验研究[J]. 中国农机化, 2012, 0(1): 68-70,74 |
| |
| 作者姓名： | 张凯 吴晓强 宗可栋 |
| |
| 作者单位： | 四川农业大学信息与工程技术学院,四川雅安,625014 |
| |
| 基金项目： | 四川省“十一五”育种攻关(2006YZGG-5-10);四川农业大学学位论文培育项目(1010——2011);四川省教育厅育种专项(08ZZ001) |
| |
| 摘 要： | 以3个不同品种的小麦为实验对象,对其茎秆挠度进行了测定,并对小麦茎秆挠度变化规律进行了分析和研究,旨在探索一种新的小麦抗倒伏性能指标和评价方法。通过多项式回归分析建立了小麦茎秆的"载荷敏感度"随载荷变化关系的数学模型。实验结果表明:以"挠度指数"和"载荷敏感度"作为评价作物抗倒伏性能的指标,具有物理意义明晰、测量方便、操作简单、可行性好等优点,可为小麦抗倒伏研究和相关农业机械的设计提供理论依据和参考。
|
| 关 键 词： | 小麦茎秆 抗倒伏 挠度指数 载荷敏感度 |
Experimental Study on Evaluating Wheat Lodging-resistance Through Stems Deflection |
| |
| ZHANG Kai , WU Xiao-qiang , ZONG Ke-dong. Experimental Study on Evaluating Wheat Lodging-resistance Through Stems Deflection[J]. Chinese Agricul Tural Mechanization, 2012, 0(1): 68-70,74 |
| |
| Authors: | ZHANG Kai WU Xiao-qiang ZONG Ke-dong |
| |
| Affiliation: | (Sichuan Agricultural University,Ya’an,625014,China) |
| |
| Abstract: | The stem deflections were measured and relevant changing trends were studied for 3 different wheat varieties,aiming at searching for a new performance index and evaluation method of lodging resistance.Through the polynomial regression,mathematic models were established,expressing the change of the "load sensitivity" of wheat straw with load.The results showed that the index of the "deflection index" and "load sensitivity" to evaluate crop lodging-resistance performance had advantages such as clear physical meanings,convenient measurements,simple operation and good feasibility,etc.It could provide theory basis for wheat lodging-resistance research and related agricultural machinery design. |
| |
| Keywords: | wheat straw lodging resistance deflection index load sensitivity |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
