两性生命表研究灰茶尺蠖与茶尺蠖生长发育和繁殖力

葛繁星; 史凡; 程春喜; 陈李林

doi:10.13305/j.cnki.jts.2022.06.008

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茶叶科学 ›› 2022, Vol. 42 ›› Issue (6) : 828-838. DOI: 10.13305/j.cnki.jts.2022.06.008

研究报告

两性生命表研究灰茶尺蠖与茶尺蠖生长发育和繁殖力

葛繁星^1,2,3, 史凡^2,3, 程春喜^2,3,4, 陈李林^2,3,*

作者信息 +

Development and Reproduction of Ectropis grisescens and Ectropis obliqua Based on the Two-Sex Life Table

GE Fanxing^1,2,3, SHI Fan^2,3, CHENG Chunxi^2,3,4, CHEN Lilin^2,3,*

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文章历史 +

摘要

灰茶尺蠖[Ectropis grisescens (Warren)]与茶尺蠖[Ectropis obliqua (Prout)]为茶园两种重要的食叶性害虫,严重影响茶叶的产量和品质。利用年龄-阶段两性生命表,在室内测定两种尺蠖的生长发育指标及年龄-阶段特征存活率、雌成虫年龄-阶段特征繁殖力、年龄-阶段特征寿命期望值、年龄-阶段特征繁殖值和种群参数,并分析各参数的差异。结果表明,灰茶尺蠖的1、2、4、5龄幼虫发育历期、幼虫总历期、蛹期及成虫寿命（分别为3.22、2.55、1.43、4.56、15.34、7.98、7.59 d）均显著低于茶尺蠖（分别为4.07、3.05、2.16、5.71、18.83、8.88、10.65 d）;灰茶尺蠖2~5龄幼虫存活率（分别为100.00%、95.00%、62.00%和96.00%）均高于茶尺蠖（分别为93.00%、71.00%、45.00%和80.00%）;灰茶尺蠖平均世代周期（32.412 d）显著短于茶尺蠖（36.016 d）。灰茶尺蠖年龄-阶段特征存活率、内禀增长率比茶尺蠖高,平均世代周期（T）比茶尺蠖短,其种群能更迅速扩增。研究结果为灰茶尺蠖和茶尺蠖室内种群饲养提供基础数据,为两近缘种的竞争机制及种群控制策略选择提供理论依据。

Abstract

Ectropis grisescens Warren and Ectropis obliqua Prout are two serious defoliators in tea gardens, which affect both yield and quality of tea. In the study, using the age-stage two-sex life table, the growth and development indices, age-stage-specific survival rate, age-stage-specific fecundity, age-stage-specific life expectancy, age-stage-specific reproductive value, and population parameters of tea geometrid were measured and the differences of the parameters were analyzed. The results show that the developmental duration of the 1^st, 2^nd, 4^th, and 5^th instar larvae, the total duration of larvae, the pupal stage, and the adult longevity of E. grisescens (3.22, 2.55, 1.43, 4.56, 15.34, 7.98, and 7.59 d, respectively) were significantly lower than those of E. obliqua (4.07, 3.05, 2.16, 5.71, 18.83, 8.88, and 10.65 d, respectively). The survival rates of the 2^nd to 5^th instars larvae of E. grisescens were 100.00%, 95.00%, 62.00% and 96.00%, respectively, which were significantly higher than those of E. obliqua (93.00%, 71.00%, 45.00% and 80.00%, respectively). The mean generation duration of E. grisescens was 32.412 d, which was significantly shorter than that of E. obliqua (36.016 d). The age-stage-specific survival rate and intrinsic rate of increase of E. grisescens were higher than those of E. obliqua, and the mean generation duration was shorter than that of E. obliqua. The population of E. grisescens could expand more rapidly. The results provided basic data for the lab population rearing of E. grisescens and E. obliqua, and provided theoretical basis for the competition mechanism and the selection of population control strategies of the two sibling species.

导出引用

葛繁星, 史凡, 程春喜, 陈李林. 两性生命表研究灰茶尺蠖与茶尺蠖生长发育和繁殖力[J]. 茶叶科学. 2022, 42(6): 828-838 https://doi.org/10.13305/j.cnki.jts.2022.06.008

GE Fanxing, SHI Fan, CHENG Chunxi, CHEN Lilin. Development and Reproduction of Ectropis grisescens and Ectropis obliqua Based on the Two-Sex Life Table[J]. Journal of Tea Science. 2022, 42(6): 828-838 https://doi.org/10.13305/j.cnki.jts.2022.06.008

中图分类号： S571.1

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