【摘要】 在室内28±1℃条件下,应用叶盘法研究了中单2号、农大108、赤单202和巴丹3号4个不同玉米品种对截形叶螨种群参数的影响.结果表明,在不同品种玉米上,截形叶螨卵期、若螨期、产卵前期、成螨寿命、单雌产卵量、日均产卵量、净增殖率、周限增长率、内禀增长率、世代平均周期和种群加倍时间均有明显差异(P<0.05);其孵化率为中单2号95.8%、农大10894.0%、赤单20290.0%和巴单3号84.0%;幼、若螨期存活率相应地为90.5%、84.0%、86.0%和72.0%;存活曲线均为I型.净增殖率在中单2号上最高为41.4,而在巴单3号上最低为16.8;中单2号是其最喜食的品种,其次为农大108,再次为赤单202,对巴单3号的嗜食性最差.更多还原

【Abstract】 The laboratory study at 28 ℃ showed that on four different corn cultivars,the durations of ovum,nymph and pre-oviposition,adult longevity,fecundity,egg production per day,net reproductive rate （R₀）,finite rate of increase （λ）,intrinsic rate of increase （r_m）,mean generation time （T）,and the days needed to double population size （DDP） of Tetranychus truncatus were significantly different.The hatching rate on Zea mays cv.Zhongdan 2,Nongda 108,Chidan 202 and Badan 3 was 95.8%,94.0%,90.0% and 84.0%,and the survival rate on these cultivars was 90.5%,86.0%,84.0%,and 72.0%,respectively.All the survival curves were of Deevey Ⅰ.The net reproductive rate （R₀） was the highest on Zhongdan 2,and the lowest on Badan 3.The mite displayed a decreasing preference in order of Zhongdan 2> Nongda 108> Chidan 202> Badan 3.更多还原