| 油桐尺蠖幼虫龄期的划分 |
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| 引用本文： | 孙艳娟,;韦金英,;杨振德,;李明,;韦泳丽,;韦海花.油桐尺蠖幼虫龄期的划分[J].昆虫知识,2009,46(6):892-895. |
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| 作者姓名： | 孙艳娟 ;韦金英 ;杨振德 ;李明 ;韦泳丽 ;韦海花 |
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| 作者单位： | |
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| 基金项目： | 广西大学大学生创新性实践计划项目 |
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| 摘 要： | 通过对油桐尺蠖Buzura suppressaria Guene幼虫实际蜕皮次数的观察和头壳宽度的测量,确定幼虫龄期为7龄。1～7龄幼虫头壳宽(mm)分别为:0.2905±0.0101,0.4627±0.0213,0.6884±0.03,1.124±0.0407,1.7826±0.0457,2.6772±0.078,3.8401±0.0567。经统计分析得到其龄期y与幼虫头壳宽度x的关系式为y=0.1917e0.436x。
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| 关 键 词： | 油桐尺蠖 龄期 头壳 Crosby指数 |
Classification on larvae instars of Buzura suppressaria |
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| Institution: | SUN Yan-Juan WEI Jin-Ying , YANG Zhen-De, LI Ming , WEI Yong-Li , WEI Hai-Hua ( 1. Forestry College of Guangxi University, Guangxi, Nanning 530004, China; 2. The Second Health School ofNanning, Guangxi, Binyang 530409, China) |
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| Abstract: | The ecdysis times of Buzura suppressaria Guenée larvae were observed, while the width of head capsules was measured. It was identified that there were 7 instars in B. suppressaria. The average width ( mm) of head capsules from instars 1 to 7 was 0.2905 ±0.0101, 0.4627 ± 0.0213, 0.6884±0.03, 1.1240 ±0.0407, 1.7826± 0.0457, 2.6772±0.078 and 3.8401±0.0567, respectively. So the linear regression equation of the instar (y) against the width of head capsule of larvae (x) was y = 0.1917e~(0.436x). |
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| Keywords: | Buzura suppressaria instars head capsules Crosby index |
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