| 郭良珍1,刘绍友2,苏丽2.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. |
| 小麦禾谷缢管蚜的危害损失和防治指标研究 |
| Studies on the damage loss and the economic threshold of Rhopalosiphum padi (Linnaeus) in wheat |
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| DOI： |
| 中文关键词: 禾谷缢管蚜 小麦 危害损失 防治指标 |
| 英文关键词:damage yield loss economic threshold Rhopalosiphum padi (Linnaeus) |
| 基金项目: |
| 郭良珍1 刘绍友2 苏丽2 |
| 1.广东省湛江海洋大学农学院,湛江524088;2.西北农业大学植保系,陕西杨凌712100 |
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| 中文摘要: |
| 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 |
| 英文摘要: |
| 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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