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朱砂叶螨生命表和种群动态的研究

DOI: 10.3321/j.issn:1000-7091.1987.04.014, PP. 85-93

Keywords: 朱砂叶螨,生命参数,种群动态

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Abstract:

试验在植物生长箱内以5种变动温湿度组合模拟郑州地区6-7月份大气温湿度,以棉叶圆盘饲育朱砂叶螨,所得数据组建了朱砂叶螨生命表。在上述温湿度条件下,又对棉苗上的种群动态进行了观察。结果在供试高温低湿条件下,朱砂叶螨增殖最快,内禀增殖率和净生殖率最高,世代平均日数最短。棉田种群动态系统调查结果与室内研究趋势一致。证实高温干旱季节是朱砂叶螨大量增殖和暴发成灾的气候条件,雨水冲刷和高湿环境是种群数量迅速衰退的主要原因。

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