| 小麦禾谷缢管蚜的危害损失和防治指标研究 |
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| 引用本文： | 郭良珍,刘绍友,苏丽.小麦禾谷缢管蚜的危害损失和防治指标研究[J].植物保护,2000,26(6):12-14. |
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| 作者姓名： | 郭良珍 刘绍友 苏丽 |
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| 作者单位： | 广东省湛江海洋大学农学院!湛江524088(郭良珍)，西北农业大学植保系!陕西杨凌712100(刘绍友，苏丽) |
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| 摘 要： | 禾谷缢管蚜种群数量和危害历期是造成小麦产量损失的主要因素。采用累积虫日作为危害量指标 ,建立了蚜虫危害量与小麦产量损失的回归模型 ,即Y1=1.4250+5.3529×10-4X1,Y2=1.1780+0.0106X2 ,确定了禾谷缢管蚜的动态防治指标
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| 关 键 词： | 禾谷缢管蚜 小麦 危害损失 防治指标 |
Studies on the damage loss and the economic threshold of Rhopalosiphum padi (Linnaeus) in wheat |
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| GUO Liang zhen ;LIU,Shao you ;SU Li.Studies on the damage loss and the economic threshold of Rhopalosiphum padi (Linnaeus) in wheat[J].Plant Protection,2000,26(6):12-14. |
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| Authors: | GUO Liang zhen ;LIU Shao you ;SU Li |
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| Institution: | 1.Agricultural College;Zhanjiang Ocean University;Zhanjiang 524088;China; 2.Department of Plant Protection Northwestern Agricultural University;Shannxi;Yangling 712100;China |
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| Abstract: | The population number and infecting period of Rhopalo siphum padi in wheat as an index were studied. Based on cumulative insectdays, the regression model between infection quantity of the aphid and ratio of yield loss at different stage was established, that was, Y1=1.4250+5.3529×10-4X1,Y2=1.1780+0.0106 X2. The dynamics economic threshold was proposed. |
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| Keywords: | damage yield loss economic threshold Rhopalosiphum padi (Linnaeus) |
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