Position: Home > Articles > The spatial distribution pattern and sampling technique of egg of cotton bollworm on the cotton fields
Acta Agriculturae Zhejiangensis
1997
(3)
棉铃虫卵粒在棉株上的空间分布型与抽样技术
作 者：
虞轶俊;冯炳灿;杨樟法;周新生;朱仕根
单 位：
浙江省萧山市病虫测报站;浙江省植物保护总站;浙江省农业科学院植物保护研究所
关键词：
棉铃虫；分布型；抽样技术；聚集分布
摘 要：
通过１９９６年在第三、四代棉铃虫盛发期对２７块棉田的２７００棉株上的卵量随机抽样调查，经Ｉｗａｏ聚集指数测定，ｍ／ｍ＞１；Ｔａｙｌｏｒ幂法测定，ａ＝２１４６２＞０，ｂ＝１３７１７＞１；Ｉｗａｏｍ—ｍ回归分析，ａ＝－００４０１≌０，ｂ＝２５４４０＞１。结果表明，棉铃虫卵粒呈聚集分布。又经Ｉｗａｏ法计算理论抽样数量获如下模式：ｔ＝１９６≌２，Ｄ＝０１，ｎ＝（３８３９６／ｘ）＋６１７６；ｔ＝１９６≌２，Ｄ＝０２，ｎ＝（９５９９／ｘ）＋１５４４；ｔ＝１９６≌２，Ｄ＝０３，ｎ＝（４２７／ｘ）＋６８６。
译 名：
The spatial distribution pattern and sampling technique of egg of cotton bollworm on the cotton fields
作 者：
Yu Yijun1, Feng Bingcan2, Yang Zhangfa2, Zhou Xinsheng3 & Zhu Shigen3 (1Zhejiang Provincial Station of Plant Protection, Hangzhou 310004; 2Institute of Plant Protection, Zhejiang Academy of Agricultural Sc
关键词：
cotton bollworm; spatial distribution pattern; sampling technique; aggregate distribution
摘 要：
The spatial distribution pattern and the sampling methods of egg of cotton bollworm, Helicoverpa armigera(Hübnen), were systematically studied by investigating the eggs of 3rd and 4th generations at Xiaoshan cotton area of Zhejiang Province in 1996 Three theoretical models of analysis were developed by accepting the methods of Iwao's index of aggregate, Taylor's power law and Iwao's —m regression The results showed that the spatial distribution pattern of egg of cotton bollworm belonged to aggregate distribution in typical cotton fields The numbers of sampling varied with the egg's density and expected accuracy of egg investigation in cotton fields
导出引用
计量
文章访问数: 4
HTML全文浏览量: 0
PDF下载量: 0
所属期刊
