东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2013年
12期
80-83
,共4页
孙悦%崔欣%郑义%段显德%杨信东
孫悅%崔訢%鄭義%段顯德%楊信東
손열%최흔%정의%단현덕%양신동
梨树%锈病%空间分布型%理论抽样数%序贯抽样检索表
梨樹%鏽病%空間分佈型%理論抽樣數%序貫抽樣檢索錶
리수%수병%공간분포형%이론추양수%서관추양검색표
Pear tree%Rust%Spatial distribution pattern%Optimum sampling number%Sequential sampling search table
梨树锈病病斑在叶片上的空间分布型为聚集分布,分布的基本成分是个体群。梨树锈病的理论抽样数研究结果表明:获得较为精确的调查结果,在常见的发病条件下(每个叶片上的病斑数1~5个),需调查1600~2600个叶片;获得大体精确的调查结果,在常见的发病条件下(每个叶片上的病斑数1~5个),需调查200~300个叶片;制定了指导防治工作的序贯抽样检索表。
梨樹鏽病病斑在葉片上的空間分佈型為聚集分佈,分佈的基本成分是箇體群。梨樹鏽病的理論抽樣數研究結果錶明:穫得較為精確的調查結果,在常見的髮病條件下(每箇葉片上的病斑數1~5箇),需調查1600~2600箇葉片;穫得大體精確的調查結果,在常見的髮病條件下(每箇葉片上的病斑數1~5箇),需調查200~300箇葉片;製定瞭指導防治工作的序貫抽樣檢索錶。
리수수병병반재협편상적공간분포형위취집분포,분포적기본성분시개체군。리수수병적이론추양수연구결과표명:획득교위정학적조사결과,재상견적발병조건하(매개협편상적병반수1~5개),수조사1600~2600개협편;획득대체정학적조사결과,재상견적발병조건하(매개협편상적병반수1~5개),수조사200~300개협편;제정료지도방치공작적서관추양검색표。
Pear tree leaf samples with rust spot disease were collected in Changchun , Jilin Province .The spatial distribution of the pear rust spot is in a pattern of aggregated distribution and the basic component of distribution is in individual group. The field survey results show that under normal disease condition 1 600-2 600 leaf samples (1-5 rust spots per leaf) are required to analyze data with relatively high precision, and 200-300 leaf samples (1-5 rust spots per leaf) are required to analyze data with relatively low precision.The sequential sampling search table can be used to control the disease.