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研究了淹水对褐飞虱种群的直接影响,以及淹水导致的稻株营养成分变化和褐飞虱生长发育的关系。结果表明,淹水使褐飞虱的卵的孵化率明显下降,尤其是淹水和高温的互作可杀死稻株内绝大部分褐飞虱卵。淹水能使褐飞虱的取食量、产卵量和生存率都明显下降。同时,淹水使稻株内游离氨基酸含量明显下降,而总糖含量明显增加,从而对褐飞虱的生长发育产生不利影响
The direct effects of flooding on the populations of BPH were studied, and the relationship between the changes of nutrient components in rice plants and the growth and development of BPH were analyzed. The results showed that the hatchability of eggs of N. lugens decreased significantly after flooding, especially the interactions between flooding and high temperature could kill most of the brown planthopper eggs. Flooding can make BPH infestation, fecundity and survival rate significantly decreased. At the same time, flooding reduced the contents of free amino acids in rice plants significantly, while the total sugar content increased significantly, which had an adverse effect on the growth and development of N. lugens