| 刘 倩, 苟玉萍, 刘长仲.温度对异迟眼蕈蚊生长发育和繁殖的影响[J].植物保护,2015,41(5):85-87. |
| 温度对异迟眼蕈蚊生长发育和繁殖的影响 |
| Effects of different temperatures on the growth, development and fecundity of Bradysia difformis |
| 投稿时间：2014-06-08 修订日期：2014-08-05 |
| DOI： |
| 中文关键词: 异迟眼蕈蚊 发育历期 发育起点温度 有效积温 生命表 |
| 英文关键词:Bradysia difformis developmental duration developmental threshold temperature effective accumulative temperature life table |
| 基金项目:公益性行业(农业)科研专项(201303027) |
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| 中文摘要: |
| 以韭菜为食物, 将异迟眼蕈蚊(Bradysia difformis Frey)在10、15、20、25和30 ℃等5种恒温条件下饲养, 观察温度对异迟眼蕈蚊发育和繁殖的影响。结果显示, 异迟眼蕈蚊的发育历期随温度升高而逐渐缩短, 在10 ℃时, 卵至蛹的发育历期最长, 平均为71.96 d, 30 ℃下, 卵至蛹的平均发育历期缩短到16.28 d。卵、幼虫、蛹和卵至蛹的发育起点温度分别为4.04、5.79、8.38和4.97 ℃, 有效积温分别为102.36、218.03、48.57和395.79 日·度。成虫寿命随着温度升高而逐渐缩短, 雌虫寿命均长于雄虫。单雌产卵量在25 ℃下最高, 为117.25粒, 10 ℃最低, 为43.87粒。在10~25 ℃下, 随着温度的升高其内禀增长率逐渐增高, 25 ℃时达到0.207 2, 4个温度之间存在显著差异。 |
| 英文摘要: |
| Bradysia difformis Frey was reared with leek under constant temperatures of 10, 15, 20, 25 and 30 ℃to evaluate the effect of temperature on the development and fecundity of B. difformis. The results showed that the developmental duration of B.difformis was progressively shortened with the increase of temperature under 10 ℃, and the developmental duration from egg to pupa was the longest, with an average of 71.96 d, while under 30 ℃, the average developmental duration from egg to pupa shorten to 16.28 d. Developmental threshold temperature of eggs, larvae, pupae and eggs pupae were respectively 4.04, 5.79, 8.38 and 4.97 ℃, and the effective temperatures were respectively 102.36, 218.03, 48.57 and 395.79 degree days. Adult lifespans were gradually shortened with the increase of temperature, and female life expectancy was longer than male’s. Fecundity reached the highest 117.25 under 25 ℃, but under 10 ℃, it reached the lowest 43.87. In the range of 10 ℃ to 25 ℃, as the temperature rose gradually, its intrinsic rate of increase increased, reaching to 0.207 2 under 25 ℃. There were significant differences between the 4 temperatures. |
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