| 小麦禾谷孢囊线虫湖北群体活动期特性 |
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| 引用本文： | 王明祖,黎少波,刘涛玉,陈品三.小麦禾谷孢囊线虫湖北群体活动期特性[J].植物保护学报,1998,25(1):37-40. |
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| 作者姓名： | 王明祖 黎少波 刘涛玉 陈品三 |
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| 作者单位： | 华中农业大学植物保护系，华中农业大学植物保护系，天门市供销社，中国农科院植保所 武汉 430070，武汉 430070 湖北省农垦局，天门，北京 |
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| 摘 要： | 小麦播种时定量接种禾谷孢囊线虫（ＣＣＮ）（Ｈｅｔｅｒｏｄｅｒａａｖｅｎａｅ）的孢囊，发芽生根后进行系统观察，结果表明，该线虫在小麦生长季节中完成１代，小麦播种后２５～３５ｄ是２龄幼虫入侵幼根的高峰期，１００～１２０ｄ根内出现３龄幼虫，１１０～１３０ｄ发育成４龄幼虫，１３０～１５０ｄ根表露出白色孢囊（雌虫）。受感染的麦根，侵染点首先变褐，进而肿大，常见分叉增多，形成须根团，ＣＣＮ多居于自然含磷，钾元
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| 关 键 词： | 禾谷孢囊线虫 湖北群体 活动期特性 小麦 |
CHARACTERISTICS OF CEREAL CYST NEMATODE POPULATION IN ACTIVE PERIOD IN HUBEI |
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| Wang Mingzu,Li Shaobo,Liu Taoyu and Chen Pinsan.CHARACTERISTICS OF CEREAL CYST NEMATODE POPULATION IN ACTIVE PERIOD IN HUBEI[J].Acta Phytophylacica Sinica,1998,25(1):37-40. |
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| Authors: | Wang Mingzu Li Shaobo Liu Taoyu and Chen Pinsan |
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| Institution: | CHARACTERISTICS
OF CEREAL CYST NEMATODE POPULATION;IN ACTIVE
PERIOD IN HUBEI;Wang
Mingzu Li Shaobo;(Department
of Plant Protection,Huazhong Agricultural University, W;
uhan);Liu Taoyu;(Tianmen
Supply and Marketing Co-operative, Tianmen);Chen
Pinsan;(Institute
of Plant Protection,Chinese Academy of Agricultural
Sciences,Beijing) |
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| Abstract: | The quantified cereal cyst nematodes(CCN) (Heterodera avenae)were inoculated at the same time as the wheat sowing. The life cyst was observed after rooting. The result indicates that H. avenue accomplished one generation in one wheat growth season. The peak period for the nematode larvae entering into young wheat roots was 25 -35 days after wheat sowing. The larvae developed into pod-shaped within 100-120 days. The sexes of larvae could be distinguished in 110-130 days. The white cyst (females) appeared in 130-150 days. The intruding points of the roots turned slightly brown in colour, then swelled and became slightly abnormal. There were excessive branches. There were more nematode cysts in soil where the content of phosphorus and potassium were naturally rich and where the water capacity was higher. Most nema-todes inhabited in 5 - 30 cm cultivated horizon. |
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| Keywords: | cereal cyst nematode population in Hubei characteristics in active period |
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