| 灰茶尺蛾和小茶尺蠖两近缘种的生物学特性差异 |
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| 引用本文： | 白家赫,唐美君,殷坤山,王志博,肖强.灰茶尺蛾和小茶尺蠖两近缘种的生物学特性差异[J].浙江农业学报,2018,30(5):797. |
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| 作者姓名： | 白家赫 唐美君 殷坤山 王志博 肖强 |
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| 作者单位： | 1.中国农业科学院 茶叶研究所,浙江 杭州 310008; 2.中国农业科学院 研究生院,北京 100081 |
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| 基金项目： | 浙江省“三农六方”项目(CTZB-F160728AWZ-SNY1-36); 中国农业科学院创新工程(CAAS-ASTIP-TRICAAS); 中央级公益性科研院所基本科研业务费专项(1610212017013) |
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| 摘 要： | 灰茶尺蛾(Ectropis grisescens)和小茶尺蠖(Ectropis obliqua)外形极其相似,为近缘种,但其生物学特性的差异尚不明确。本文采用室内饲养观测的方法,比较了两近缘种各发育阶段在体长、体质量、发育历期及种群增长指数等方面的差异。结果表明,两近缘种在虫体发育的各个阶段,以高龄幼虫、蛹和成虫阶段的体长、体质量差异明显,灰茶尺蛾均显著高于小茶尺蠖;灰茶尺蛾的全世代发育历期为36.6 d,极显著短于小茶尺蠖39.7 d的发育历期;灰茶尺蛾的世代存活率为0.60,种群增长指数为58.1,而小茶尺蠖分别为0.28和24.9,灰茶尺蛾均极显著高于小茶尺蠖。分析认为,灰茶尺蛾比小茶尺蠖具有较大的虫体、较快的发育速率和较强的繁殖能力。
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| 关 键 词： | 灰茶尺蛾 小茶尺蠖 体长 体质量 发育历期 种群增长指数 |
| 收稿时间： | 2017-08-23 |
Differential biological characteristics between closely related tea geometrid species,Ectropis obliqua and Ectropis grisescens |
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| BAI Jiahe,TANG Meijun,YIN Kunshan,WANG Zhibo,XIAO Qiang.Differential biological characteristics between closely related tea geometrid species,Ectropis obliqua and Ectropis grisescens[J].Acta Agriculturae Zhejiangensis,2018,30(5):797. |
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| Authors: | BAI Jiahe TANG Meijun YIN Kunshan WANG Zhibo XIAO Qiang |
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| Institution: | 1. Tea Research Institute, Chinese Academy of Agricultural Science, Hangzhou 310008, China;
2. Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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| Abstract: | The sibling pests, Ectropis grisescens and Ectropis obliqua, are morphologically similar. However, the potential differences between their biological characteristics especially the body-length, weight, developmental duration and population growth rates of each development stage remains unclear. In the current study, we characterized and compared this issue based on laboratory observation. Firstly, the body-length and weight of the old larvae, pupae and moths were significantly different, with higher levels observed on E. grisescens in comparison to those of E. obliqua. Secondly, the periods of one generation between these two pest species were distinct. E. grisescens needed 36.6 d to complete one generation, whereas E. obliqua required at least 39.7 d. Finally, the generational survival rate and population growth rate in E. obliqua was 0.28 and 24.9, respectively, which was approximately half of that in E. grisescens. Hence, we proposed that E. grisescens had larger body size, faster developmental rate and stronger reproductive capacity than E. obliqua. |
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| Keywords: | Ectropis grisescens Ectropis obliqua body length body weight developmental duration population growth rate |
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