| 粉虱座壳孢菌的空间分布型及其抽样技术 |
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| 引用本文： | 关雄,高日霞.粉虱座壳孢菌的空间分布型及其抽样技术[J].福建农林大学学报(自然科学版),1991(1). |
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| 作者姓名： | 关雄 高日霞 |
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| 作者单位： | 福建农学院植物保护系 福建福州350002 |
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| 摘 要： | 根据,/,/m,C_A。C 和 K 等聚集度指标测定结果,粉虱座壳孢菌子座在柑桔园的空间分布属聚集分布,其 Iwao 和 Taylor 的线性回归关系分别为=1.720 2+1.313m(r=0.787)和1gV=0.500 8+1.035 6 1g m(r=0.912 9).同时,本文还给出了在允许误差 D=0.1,0.2,0.3,平均子座密度在0.5—10个7叶,间隔密度为0.5情况下的田间理论抽样数和树、叶之间最佳配额数.
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| 关 键 词： | 粉虱座壳孢菌 空间分布型 抽样技术 |
The Spatial Distribution Pattern and the Sampling Methods of Aschersonia aleyrodis in Citrus |
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| Guan Xiong Gao Rixia.The Spatial Distribution Pattern and the Sampling Methods of Aschersonia aleyrodis in Citrus[J].Journal of Fujian Agricultural and Forestry University,1991(1). |
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| Authors: | Guan Xiong Gao Rixia |
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| Abstract: | The spatial distribution pattern of A.aleyrodis in citrus was analysed with dif- ferent determinative indices of ,I,/m,C_A,C and K.On the basis of the research sampling methods were discussed.It showed that the spatial distribution of the stromata fit into the aggregated distribution pattern.The linear regressions of -m and lg V-lg m were =1.720 2+1.313 m(r=0.787~*)and lg V=0.500 8+1.035 61g m(r=0.912 9~(**)) respectively.The theoretical sampling numbers for sampling trees and leaves were also listed under the conditions of permissible errors D(0.1,0.2 and 0.3)and mean densities of stromata (0.5-10/per leaf at intervals of 0.5). |
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| Keywords: | Aschersonia aleyrodis spatial distribution pattern sampling methods |
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