摘要
【目的】明确不同西甜瓜品种对截形叶螨Tetranychus truncates Ehara生长发育及繁殖的影响,为西甜瓜品种布局和该虫的综合治理提供科学依据。【方法】在实验室条件下,研究截形叶螨在不同西甜瓜品种(西瓜早佳8424、西瓜美都、西瓜嘉美和甜瓜金玉红2号、甜瓜玉菇)上的发育历期、产卵量和生命表参数。【结果】截形叶螨在西瓜早佳8424和甜瓜玉菇上的存活率较高,分别为95.00%和86.55%,而在西瓜美都和甜瓜金玉红2号上存活率较低,只有75.38%和70.45%;截形叶螨在不同西甜瓜品种上的繁殖力也存在显著差异,在西瓜早佳8424和西瓜美都上的繁殖适合性最高,即抗虫性最弱,产卵期长且产卵量大,如在西瓜早佳8424上平均单雌产卵量达(35.31±5.35)粒,而在西瓜嘉美上的繁殖适合性最低,即抗虫较最强,产卵期短产卵量少,平均单雌产卵量为(19.96±2.02)粒;此外,西瓜美都和西瓜早佳8424的内禀增长率r_(m)和周限增长率λ最高,分别为0.203 1、0.161 7和1.225 2、1.175 5;西瓜嘉美的净增值率R_(0)最低,仅为16.7。【结论】在供试的5个西甜瓜品种中,西瓜早佳8424和美都是最适宜截形叶螨生长和繁殖的品种,而西瓜嘉美有较高的抗虫性。
[Objectives] To investigate the effect of different melon varieties on the growth, development and fecundity of Tetranychus truncates Ehara, and thereby provide information to guide the choice of watermelon and muskmelon varieties and the integrated management of this pest. [Methods] The effects of five different melon varieties, including Zaojia watermelon 8424, Meidu watermelon, Jiamei watermelon, Jinyuhong muskmelon No.2 and Yugu muskmelon, on the growth, reproduction, survival and life-table parameters of T. truncates, were studied under laboratory conditions. [Results] The survival rate of T. truncates on Zaojia watermelon 8424 and Yugu muskmelon was 95.00% and 86.55% respectively, whereas that on Meidu watermelon and Jinyuhong muskmelon No.2 was 75.38% and 70.45%, respectively. The reproductive capacity of T. truncates on different melon varieties differed significantly;highest reproductive fitness was recorded on Zaojia 8424 and Meidu watermelons, which indicates that these varieties have the lowest resistance to this pest, and that the oviposition period is relatively long and the number of eggs laid relatively high on these varieties. An average of(35.31±5.35) eggs per female were laid on Zaojia 8424 watermelon compared to(19.96±2.02) per female on Jiamei watermelon. In addition, the highest intrinsic growth rate r_(m) and weekly growth rate λ were recorded on the Meidu Watermelon and Zaojia Watermelon 8424 varieties;0.203 1, 0.161 7 and 1.225 2, 1.175 5, respectively. Jiamei Watermelon had the lowest net value-added rate(R_(0)) of 16.7. [Conclusion] Among the five melon varieties tested, Zaojia watermelon 8424 and Meidu watermelon were the most suitable for the growth and reproduction of T. truncates, whereas the Jiamei muskmelon was the most resistant to this pest.
作者
邱晔
杨润
陆明星
龚伟荣
胡婕
杜予州
QIU Ye;YANG Run;LU Ming-Xing;GONG Wei-Rong;HU Jie;DU Yu-Zhou(School of Horticulture and Plant Protection&Institute of Applied Entomology,Yangzhou University,Yangzhou 225009,China;Joint International Research Laboratory of Agriculture and Agri-Product Safety,Yangzhou University,Yangzhou 225009,China;Jiangsu Plant Protection and Plant Quarantine Station,Nanjing 210036,China)
出处
《应用昆虫学报》
CAS
CSCD
北大核心
2021年第2期390-397,共8页
Chinese Journal of Applied Entomology
基金
江苏现代农业(西甜瓜)产业技术体系绿色防控创新团队(JATS[2020]309)
江苏省研究生研究与实践创新计划项目(XSJCX19099)。
关键词
西甜瓜
截形叶螨
品种
抗虫性
watermelon and muskmelon
Tetranychus truncates Ehara
melon varieties
insect resistance
