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本文在白背飞虱实验种群及自然种群生命表数据的基础上,应用状态空间分析法,研究水稻品种抗虫性对白背飞虱种群的控制作用.实验种群的研究表明,白背飞虱在不同品种上的产卵过程均有差异,且其产卵量高于田间实际卵量,这是由于天敌引起白背飞虱成虫非正常死亡与其逐日产卵概率的联合作用.以田间品种为标准品种,把水稻品种抗虫性对白背飞虱存活率、发育历期、生殖力的影响转化成控制指数,进而预测不同品种上白背飞虱的种群动态,给予水稻品种抗虫性对白背飞虱种群的控制作用比较合理的评价.
Based on the data of whitebacked planthopper test population and natural population life table data, state space analysis method was used to study the control effect of rice insect pest resistance on whitebacked planthopper, The spawning process of different varieties is different, and its spawning amount is higher than the actual amount of eggs in the field, which is due to the natural enemies of whitebacked planthopper adult unnatural death and its combined effect of daily egg production. Varieties, the rice varieties of insect resistance to white-backed planthopper survival rate, developmental period, fecundity into control index, and then predict different varieties of whitebacked planthopper population dynamics, give rice varieties of insect resistance to fly back Louse population control more reasonable evaluation.