摘要
对食禾梯管蚜在2种野生稻上分布调查表明,该虫在2种野生稻上的空间分布图式是均为聚集分布,分布的基本成分为个体群。并得该害虫在2种野生稻上的最适抽样数模型,即:药用野生稻N=(11.9688/m+0.8698)/D2,元江普通野生稻N=(2.8043/m+0.6183)/D2,景洪普通野生稻N=(2.4566/m+1.1873)/D2;并根据最适抽样数公式确定既定精度抽样停止线。
It was investigated that Brachysiphoniella graminivora Zhang et Zhang,sp.nov. distributed in three species wild rice. The resulted showed that spatial distribution patterns of Brachysiphoniella graminivora Zhang et Zhang,sp.nov. in wild rice were aggregative distribution, the basic component was individual group. The sampling number of them N=(11.9688/m+0.8698)/D^2, N=(2.8043/m+0.6183)/D^2, N=(2.4566/m + 1.1873)/D^2, respectively. According to the spatial distribution and the feasible sampling number, sampling stop-line was confirmed.
出处
《云南农业大学学报》
CAS
CSCD
2004年第6期653-657,共5页
Journal of Yunnan Agricultural University
基金
国家重点保护农业野生植物普查及重要农作物野生近缘植物调查与收集资助项目
科技部基础工作专项资助项目(2001DEA10009-06)。
关键词
野生稻
食禾梯管蚜
空间分布型
最适抽样数
wild rice
Brachysiphoniella graminivora Zhang et Zhang,sp.nov.
spatial distribution pattern
feasible sampling number
