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中文摘要：
紫外辐射对蚜虫产生了强烈的选择压力，可导致蚜虫种下遗传分化，而紫外辐射对蚜虫种下体色分化的影响尚不清楚．本研究选定两种不同体色型的麦长管蚜初生若蚜经过30w紫外线（UVB波）照射5d，每天30min，在不同温度（15℃、20℃和25℃）和不同小麦品种（小偃-22、Astron）条件下，通过在人工智能控制温室内单头饲养，分别测定了各处理麦长管蚜的发育历期、体质量差及相对日均体质量增长率等生物学参数．结果表明：在品种小偃-22上，温度较低时，紫外辐射显著延缓了绿色型麦长管蚜生长，而温度较高时，紫外辐射显著延缓了红色型麦长管蚜生长；在品种Astron上，温度较低时，紫外辐射显著延缓了绿色型麦长管蚜生长，而温度较高时，紫外辐射对两种体色型麦长管蚜生长均无显著影响．说明两种体色型蚜虫对紫外胁迫的反应不同，且紫外胁迫对麦长管蚜的影响与温度和小麦品种有关．
英文摘要：
UV-radiation exerts strong selection stress on the evolution of aphid populations, and thus, leads to their genetic differentiation. However, the effects of UV-radiation on different body-color biotypes of aphids are still ambiguous. In this study, new-born nymphae of red and green bio- types of Sitobion avenae were placed on two wheat varieties （ Xiaoyan-22 and Astron）, bred in an artificial hioclimatic chamber under strict controlled conditions （at 15℃, 20 qC, and 25 ℃, and treated with 30 W lamp of UV-B for 30 min per day for 5 days）, and their development duration, mass, and mean relative growth rate were measured. The results showed that at lower temperature, UV-radiation delayed the growth of green biotype aphid on Xiaoyan-22 and Astron significantly; while at higher temperature, UV-radiation significantly delayed the growth of red biotype aphid on Xiaoyan-22, but had lesser effects on the growth of the two biotypes on Astron, illustrating that different biotypes of aphids had different responses to temperature and wheat varieties. to UV-radiation, and the responses were correlated
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