Effects of host, temperature and relative humidity on competitive displacement of two invasive Bemisia tabaci biotypes [Q and B]
文献类型： 外文期刊
作者： Chu, Dong 1 ; Tao, Yun-Li 1 ; Zhang, You-Jun 2 ; Wan, Fang-Hao 3 ; Brown, Judith K. 4 ;
作者机构： 1.Shandong Acad Agr Sci, High Tech Res Ctr, Beijing, Peoples R China
2.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100193, Peoples R China
3.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
4.Univ Arizona, Sch Plant Sci, Tucson, AZ USA
关键词： Bemisia tabaci B biotype;Q biotype;biological invasion;host plant;non-competitive displacement
期刊名称：INSECT SCIENCE （ 影响因子：3.262； 五年影响因子：3.206 ）
ISSN： 1672-9609
年卷期： 2012 年 19 卷 5 期
页码：
收录情况： SCI
摘要： Bemisia tabaci shifted unexpectedly in China from a predominance of B biotype to Q biotype during 20052008. This observation stimulated an interest in investigating whether environmental factors, including host, temperature and relative humidity (RH) could possibly explain the observed shift in biotypes distribution. Results indicated that all three parameters examined influenced biotype survivability. The percentage of B biotype, when reared together on pepper plants with the Q biotype, decreased significantly from 66.7% in the founder population, to 13.6% and 3.7% in the first and second generations, respectively. When the B (founder at 66.7%) and Q (founder at 33.3%) biotypes were reared together on eggplant alone, or on pepper-plus-eggplant combination, the population size of the B biotype either remained constant, or increased somewhat in the first and second generations. On eggplant, the effects of RH and temperature on the competitiveness between the Q and B biotypes (3 pairs of Q and 6 pairs of B) were not significant.
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