| 豆荚螟为害损失率研究 |
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| 引用本文： | 蒋佩兰,杨志华,刘晓芬,习平根,章德英.豆荚螟为害损失率研究[J].江西农业大学学报,1995(4). |
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| 作者姓名： | 蒋佩兰 杨志华 刘晓芬 习平根 章德英 |
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| 作者单位： | 江西农业大学农学院，吉安地区农科所 |
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| 摘 要： | 采用大田抽样实测与人工模拟为害损失的方法，得出豆荚螟对春、秋大豆的为害损失表现为：（１）随虫株、虫荚及虫粒率的提高，其损失亦随之加重；（２）虫株相当，损失则随虫荚增加而加重；（３）虫株、虫荚均相当，损失则随籽粒被害程度加重而加重。据此，建立了春、秋大豆豆荚螟为害率与损失率的回归预测式。
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| 关 键 词： | 豆荚螟 为害损失率 |
A STUDY ON THE DAMAGE PERCENTAGE BY ETIELLA ZINCKENELLA TREITSCKE |
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| Abstract: | Adopting the method of factual sampling test in the fields and artificial imitating damage,the study on the damage by EtiElla zinckenella Treitscke to the spring & fall soja was carriedout.The results showed:(1)The damage increased with the percentage of insect- invadedplants,legumens and seeds.(2)The damage increased with the percentage of insect-invadedlegumens when the insect-invaded plants were the same.(3 )The damage increased with in-sect-invaded seeds when the insect-invaded plants and legumens were the same.Based on these results the regression forecast model of harm percentage and damage per-centage by Etiella zinckenella Treitscke to spring & fall soja was established. |
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| Keywords: | Eticlla zinckenella Treitiscke damage percentage |
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