河南农业科学
河南農業科學
하남농업과학
JOURNAL OF HENAN AGRICULTURAL SCIENCES
2013年
12期
86-89
,共4页
陈小飞%陈恢彪%刘慧敏%范瑛阁
陳小飛%陳恢彪%劉慧敏%範瑛閣
진소비%진회표%류혜민%범영각
骏枣%黑点病%空间分布型%抽样技术
駿棘%黑點病%空間分佈型%抽樣技術
준조%흑점병%공간분포형%추양기술
Jun-jujube%black spot disease%spatial distribution pattern%sampling technique
黑点病是南疆骏枣上发生的一种新的真菌性病害,为了明确该病害的空间分布信息,采用聚集度指标法、线性回归法对其空间分布型进行研究。结果表明,该病害的空间分布型为聚集分布,分布的基本成分为个体群,个体间相互吸引。分析聚集原因,12个枣园的聚集均数λ均大于2,表明聚集分布与病原菌自身的聚集行为和环境因素有关。另外,应用Iw ao统计方法,得出了最适理论抽样数模型和最佳序贯抽样模型。
黑點病是南疆駿棘上髮生的一種新的真菌性病害,為瞭明確該病害的空間分佈信息,採用聚集度指標法、線性迴歸法對其空間分佈型進行研究。結果錶明,該病害的空間分佈型為聚集分佈,分佈的基本成分為箇體群,箇體間相互吸引。分析聚集原因,12箇棘園的聚集均數λ均大于2,錶明聚集分佈與病原菌自身的聚集行為和環境因素有關。另外,應用Iw ao統計方法,得齣瞭最適理論抽樣數模型和最佳序貫抽樣模型。
흑점병시남강준조상발생적일충신적진균성병해,위료명학해병해적공간분포신식,채용취집도지표법、선성회귀법대기공간분포형진행연구。결과표명,해병해적공간분포형위취집분포,분포적기본성분위개체군,개체간상호흡인。분석취집원인,12개조완적취집균수λ균대우2,표명취집분포여병원균자신적취집행위화배경인소유관。령외,응용Iw ao통계방법,득출료최괄이론추양수모형화최가서관추양모형。
Black spot disease is a kind of new fungal disease w hich happened to Jun-jujube in sou-then Xinjiang .In order to reveal the spatial distribution of the disease ,the spatial distribution pat-tern was studied by using aggregation index method and linear regression method .The results in-dicated that its spatial distribution pattern was aggregation distribution ,and the basic component was individual group ,with individuals attracting each other .Aggregation averages of twelve ju-jube orchards were more than 2 ,which indicated that aggregation distribution was connected with the combined effects of pathogen own aggregation behavior and environmental factors .Using Iwao’s statistical methods ,models to determine the optimal theoretical sampling number and the optimal sequential sampling number were presented .