Investigation on the occurrence of Heterodera avenae in Beijing | 北京地区小麦禾谷孢囊线虫病发生动态调查
2013
Su Zhiheng, Chinese Academy of Agricultural Sciences, Beijing (China), Institute of Plant Protection | Huang Wenkun, Chinese Academy of Agricultural Sciences, Beijing (China), Institute of Plant Protection | Zheng Guodong, Chinese Academy of Agricultural Sciences, Beijing (China), Institute of Plant Protection
chinois. 小麦禾谷孢囊线虫病是小麦生产上的重要病害。2010-2011年对北京地区小麦禾谷孢囊线虫的发生规律进行了定期定点调查。结果表明，禾谷孢囊线虫在北京地区全年只发生1代，夏季滞育，卵孵化高峰为4月初；2龄幼虫侵染高峰为4月上旬，3龄幼虫发育高峰为4月下旬至5月初，4龄幼虫发育高峰为5月上旬，白雌虫发育高峰为5月下旬至6月上旬，10月份播种后部分2龄幼虫就可以发生侵染并且冬前发育至3龄幼虫。本研究结果可为北京地区禾谷孢囊线虫的防治提供理论依据。
Afficher plus [+] Moins [-]anglais. Cereal cyst nematode (Heterodera avenae) caused serious yield losses of wheat. Occurrence and life cycle of H. avenae were investigated in Daxing district of Beijing from December 2010 to December 2011. The results showed that H. avenae has one generation per year in Beijing. The peak of egg hatching occurred in early April, infection peak of second stage juvenile (J2) occurred in early April, development peak of third stage of juvenile (J3) occured in late April to early May, development peak of J4 occurred in early May, development peak of adult females occurred in late May to early June. J2 could infect young wheat roots at the end of October and developed into J3 before winter. The results would be beneficial for H. avenae control in Beijing.
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