| 高有华1,2;刘长仲1.不同温度下的豌豆蚜实验种群生命表研究[J].植物保护,2008,34(4):57-59. |
| 不同温度下的豌豆蚜实验种群生命表研究 |
| Life table of the experimental population of Acyrthosiphon pisum(Harris) at different temperatures |
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| DOI： |
| 中文关键词: 豌豆蚜 实验种群 生命表 内禀增长率 |
| 英文关键词:Acyrthosiphon pisum(Harris) experimental population life table intrinsic rate of increase |
| 基金项目: |
| 高有华1 2;刘长仲1 |
| 1.甘肃农业大学草业学院昆虫学系,兰州 730070;2.新疆农业大学农学院,乌鲁木齐 830052 |
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| 中文摘要: |
| 在6种温度(12、15、18、21、24℃和27℃)和相对湿度为80%的条件下,研究了温度对豌豆蚜发育和增殖的影响。组建了生命表,并统计出种群内禀增长率、净增殖率、世代平均周期、种群加倍时间和周限增长率等种群动态参数。结果表明,在试验温度范围内,豌豆蚜的发育历期随温度升高而缩短。种群的内禀增长率在24℃条件下最大(rm=0.281 0),相应的种群净增殖率(R0)、周限增长率(λ)、平均世代周期(T)和种群加倍时间(t)分别为17.030 9、1.324 5、10.089 3 d和2.466 7 d。 |
| 英文摘要: |
| The present paper deals with the effects of temperature on the development and reproduction of Acyrthosiphon pisum(Harris) at six different temperatures(12,15,18,21,24 ℃ and 27 ℃) and relative humidity 80%.Life tables were constructed for estimating the intrinsic rate of increase(rm),net reproductive rate(R0),finite rate of increase(λ),mean generation time(T) and double population time(t) under 6 treatments.The results showed that the durations of various stages were shortened as temperature rose at the range of 15-27 ℃.At 24 ℃,the intrinsic rate of increase was the highest(rm=0.281 0),and the net reproductive rate(R0),finite rate of increase(λ),mean generation time(T) and double population time(t) were calculated to be 17.030 9,1.324 5,10.089 3 days and 2.466 7 days,respectively. |
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