| 不同地理种群灰飞虱生物学特性差异 |
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| 引用本文：朱文超,侯文杰,林克剑,刘泽文,王桂荣.不同地理种群灰飞虱生物学特性差异.植物保护学报,2015,42(1):31-38 |
| DOI：10.13802/j.cnki.zwbhxb.2015.01.005 |
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| 中文摘要:为明确灰飞虱生物学特性的地理差异,对沈阳、济宁、郑州、南京和嘉兴5个地理种群灰飞虱的表观形态、发育历期、存活率、成虫寿命及生殖力等生物学特性进行了研究。结果表明,在25 ℃条件下,不同地理种群灰飞虱的雌雄比随纬度降低而增大,沈阳、济宁种群的体长显著长于其它种群个体,雌虫中长翅比率存在明显差异。若虫存活率差异显著,由低到高为:郑州<济宁<沈阳<嘉兴<南京。不同地理种群灰飞虱若虫期的发育起点温度均为11~12 ℃,差异不显著;沈阳和济宁种群的若虫发育历期和有效积温值均显著长于其它3个种群。不同温度下不同地理种群的成虫寿命差异显著,但均随温度升高而缩短。25 ℃条件下,不同地理种群单雌有效产卵量差异显著,由低到高为:嘉兴<郑州<济宁<沈阳<南京。 |
| 中文关键词:灰飞虱 种群 生物学特性 地理差异 |
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| Biological characteristics of different geographical populations of the small brown planthopper Laodelphax striatellus |
| Author Name | Affiliation | E-mail | | Zhu Wenchao | State Key Laboratory of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China | | | Hou Wenjie | College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, Jiangsu Province, China | | | Lin Kejian | State Key Laboratory of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China | linkejian@caas.cn | | Liu Zewen | College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, Jiangsu Province, China | | | Wang Guirong | State Key Laboratory of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China | |
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| Abstract:In order to understand the biological variation among different geographical populations of the small brown planthopper (SBPH, Laodelphax striatellus), we collected five SBPH populations from Shenyang, Jining, Zhengzhou, Nanjing and Jiaxing, respectively. Morphological phenotype, developmental duration, survival rate, adult longevity and reproductive capacity were investigated for all five populations. At 25 ℃, the sex ratio (female/male) increased with decreasing latitude. The average body length of individuals from Shenyang and Jining was longer than that from the other regions. The percentage of long-wing females varied significantly among the five populations. The Nanjing population had the highest nymph survival rate, followed by Jiaxing, Shenyang, Jining, and Zhengzhou populations. The developmental threshold temperature of the SBPH was slightly different from 11 ℃ to 12 ℃ among different populations. However, longer nymph duration and higher effective accumulated temperature were observed in both Shenyang and Jining populations. Along with the temperature increase, the adult longevity of all five populations became shorter, but differentiated at different temperatures. There was a significant difference in effective fecundity among different populations, in a low-to-high order: Jiaxing, Zhengzhou, Jining, Shenyang, Nanjing. |
| keywords:small brown planthopper population biological characteristics geographical difference |
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