| 顾祥鹏，黄禹禹，张金永，张晓明，陈国华,2020,短时高温胁迫对瓜实蝇生长发育及繁殖的影响[J].环境昆虫学报,(2):391-399 |
| 短时高温胁迫对瓜实蝇生长发育及繁殖的影响 |
| Effects of short term high temperature stress on growth, development and reproduction of melon fly |
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| DOI： |
| 中文关键词: 瓜实蝇 高温胁迫 生长发育 繁殖力 |
| 英文关键词:Bactrocera cucurbitae high temperature stress growth and development fertilit |
| 基金项目:云南省科技计划项目（2013EG019）；第十七批昆明市中青年学术和技术后备人才项目（昆政发\[2019\]43号） |
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| 中文摘要: |
| 为明确瓜实蝇对短时高温胁迫的耐受性。利用人工气候箱模拟短时高温胁迫，测定了不同高温处理（34、36、38、40、42、44、46、48℃）12 h，对不同发育阶段瓜实蝇的存活率和生长发育的影响。结果表明短时高温显著影响瓜实蝇的存活，随温度升高，瓜实蝇各虫态的存活率逐渐降低；高温处理12 h后瓜实蝇卵、幼虫、蛹、雌成虫、雄成虫的致死中温度LT50分别为35.48、37.55、41.85、43.62、43.32℃；34~42℃短时高温胁迫对瓜实蝇各虫态的发育历期无明显影响，44℃时其发育历期均显著增长；46℃、48℃处理下各虫态死亡率较高，不能正常发育；随着处理温度的升高，雌成虫产卵前期不断增长，单雌产卵量呈下降趋势，成虫寿命不断缩短，后代雌性比增大。44℃及以上的短时高温胁迫不利于瓜实蝇的生长发育，40℃及以上的短时高温胁迫不利于瓜实蝇的繁殖，雌性瓜实蝇对短时高温的胁迫的适应性强于雄性，随着处理温度的升高，后代雌性比例增大。 |
| 英文摘要: |
| In order to determine the tolerance of Bactrocera cucurbitae under short term high temperature stress. Short time high temperature stress test was carried out using artificial climate chamber at the temperatures of 34, 36, 38, 40, 42, 44, 46 and 48℃ in 12 h. The results showed that short term high temperature has a significant effect on the survival rate of B. cucurbitae, and the survival rate of B. cucurbitae was decreased with the increase of temperature. The LT 50 of eggs, larvae, pupae, female adults and male adults were 35.48, 37.55, 41.85, 43.62 and 43.32℃ respectively after 12 h of high temperature stress. The B. cucurbitae has held the longest developmental duration at the temperature of 44℃, there was no significant difference in developmental duration of B. cucurbitae under 34~42℃ stress. The mortality rate of whole developmental stage of B. cucurbitae was higher at the temperature of 46℃ and 48℃, and it could not develop normally at this two temperature stress. With the increase of treatment temperature, the pre oviposition period of female adults, and the ratio of offspring female were increased, but the single female oviposition and the life span of adults decreases continuously with the increase of treatment temperature Short term high temperature stress over 40℃ and 44℃ is not conducive to the reproduction and the growth and development of B. cucurbitae , respectively. Female population is more adaptable than that of the male population in short term high temperature stress, the proportion of female population in offspring was increased with the increase of high temperature stress. |
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