| 小麦秆锈病防治指标研究 |
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| 引用本文： | 王澍,曹远银,李天亚,宋晶晶.小麦秆锈病防治指标研究[J].河南农业科学,2011,40(9):78-80. |
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| 作者姓名： | 王澍 曹远银 李天亚 宋晶晶 |
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| 作者单位： | 沈阳农业大学植物保护学院,辽宁沈阳,110866 |
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| 基金项目： | 农业部“948”项目(2006-G2); 公益性行业(农业)科研专项(200903035) |
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| 摘 要： | 为考察小麦秆锈病的防治指标,在小麦自然生长条件下,以绵阳11号、浙麦1号和龙麦30号3个具有不同抗感性的小麦品种为研究对象,通过对不同病情与产量损失关系的研究,分别构建了3个品种开花期病情(X2)与产量损失率(L)之间的回归方程,其中高感品种绵阳11号的方程为:L=-1.689+1.185X2 (R=0.981,SLx...
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| 关 键 词： | 小麦 秆锈病 产量损失 防治指标 |
Study on Economic Threshold of Wheat Stem Rust |
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| WANG Shu,CAO Yuan-yin,LI Tian-ya,SONG Jing-jing.Study on Economic Threshold of Wheat Stem Rust[J].Journal of Henan Agricultural Sciences,2011,40(9):78-80. |
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| Authors: | WANG Shu CAO Yuan-yin LI Tian-ya SONG Jing-jing |
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| Institution: | WANG Shu,CAO Yuan-yin,LI Tian-ya,SONG Jing-jing(College of Plant Protection,Shenyang Agricultural University,Shenyang 110866,China) |
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| Abstract: | This study aimed to determine economic threshold of wheat stem rust disease using three wheat varieties with different resistance ability in the field test.The parper analyzed the relationship between disease indexes in bloom period(X2) and yield loss(L),and further constructed the wheat yield loss models of 3 wheat varieties,of which Mianyang 11(a high sensitive variety) was L=-1.689+1.185X2(R=0.981,SLx=5.737).According to the model above,the economic threshold of the wheat stem rust of high sensitive vari... |
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| Keywords: | Wheat Stem rust Yield loss Economic threshold |
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