| 小麦条锈病与吸浆虫混合危害损失估计 |
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| 引用本文： | 杨之为,杨永州,商鸿生,孙慎侠,米跃军.小麦条锈病与吸浆虫混合危害损失估计[J].西北农业学报,1999,8(1):49-53. |
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| 作者姓名： | 杨之为 杨永州 商鸿生 孙慎侠 米跃军 |
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| 作者单位： | [1]西北农业大学植物保护系 [2]西安市植保站 |
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| 基金项目： | 国家八五攻关课题;陕西省自林科学研究资助 |
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| 摘 要： | １９９２￣１９９４年研究了小麦条锈病与吸浆虫共同危害对小麦产量的影响。当小麦吸浆虫和条锈病同时发生时，随着病、虫数量的增加，穗重的减少与每穗虫量呈曲线相关，而与条锈病的病情指数呈线性相关。不同年份间病害与虫害的损失当量基本一致；当病、虫的数量相同时，干旱年份作物的实际损失比正常年份大。正常年份小麦条锈病的病指（ｘ）和每穗吸浆虫数量（ｚ）造成的产量损失（Ｌ％）模型为：Ｌ％＝０．０２５９＋０．００２４
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| 关 键 词： | 小麦 产量损失 条锈病 吸浆虫 |
| 收稿时间： | 1997/4/22 0:00:00 |
| 修稿时间： | 1998/4/27 0:00:00 |
Loss Assessmant of Stripe Rust Together with Wheat Midge |
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| Yang Zhiwei,Yang Yongzhou,Shang Hongsheng,Sun Shenxial and Mi Yaojun.Loss Assessmant of Stripe Rust Together with Wheat Midge[J].Acta Agriculturae Boreali-occidentalis Sinica,1999,8(1):49-53. |
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| Authors: | Yang Zhiwei Yang Yongzhou Shang Hongsheng Sun Shenxial and Mi Yaojun |
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| Institution: | Department of Plant Protection of Northwest Agriculture University, Shaanxi Yangling 712100;Plant Protection Station of Xi''an;Department of Plant Protection of Northwest Agriculture University, Shaanxi Yangling 712100;Department of Plant Protection of Northwest Agriculture University, Shaanxi Yangling 712100;Institute of Agriculture Science of Chang''an County |
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| Abstract: | The yield loss of wheat induced by stripe rust and wheat midge had been studied from 1992 to 1994. There is a linear correlation between the ear weight of wheat and wheat midges'' numbers while the wheat midges'' numbers on each ear less than 20.The regress slope of loss equation of ear weight is similar between different years,but the regress intercept is dissimilar by main reason of the different rainfall in years. Two models for relative yield loss of wheat were built as a function of stripe rust density (X) and wheat midge''s number(Z). |
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| Keywords: | Wheat yield loss Stripe rust Wheat midge |
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