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angelica root rot
相关语句
  当归茎线虫病
     Spatial pattern of angelica root rot and its sampling techniques
     当归茎线虫病田间分布型及抽样技术研究
短句来源
     The epidemic rule of angelica root rot, Ditylenchus destructor, was studied so as to forecast its occurrance precisely and provide reasonable sampling techniques and theoretical sample size.
     为提高当归茎线虫病(Ditylenchus destructor)田间抽样的准确度,用7种聚集指标判断了当归茎线虫病的田间分布型。
短句来源
  相似匹配句对
     ON THE ROOT ROT OF SWEETPOTATO
     甘薯根腐病的初步研究
短句来源
     Spatial pattern of angelica root rot and its sampling techniques
     当归茎线虫病田间分布型及抽样技术研究
短句来源
     Root
     根
短句来源
     PHYTOPHTHORA ROOT ROT OF SOYBEAN
     大豆疫霉根腐病
短句来源
     he pathogen that caused root rot on Angelica dahurica after harvest and its mainCharacteristics were studied.
     白芷根腐病由菜豆壳球孢引起。
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The epidemic rule of angelica root rot, Ditylenchus destructor, was studied so as to forecast its occurrance precisely and provide reasonable sampling techniques and theoretical sample size. The seven aggregation indices were used to analyze the spatial pattern of the disease in fields. The spatial pattern of the disease was negative binomial bution with the optimum rates as 100% and 77.8% , respectively. The theoretical sample size was about 820 and positively relative to infection rate. Five-point sampling...

The epidemic rule of angelica root rot, Ditylenchus destructor, was studied so as to forecast its occurrance precisely and provide reasonable sampling techniques and theoretical sample size. The seven aggregation indices were used to analyze the spatial pattern of the disease in fields. The spatial pattern of the disease was negative binomial bution with the optimum rates as 100% and 77.8% , respectively. The theoretical sample size was about 820 and positively relative to infection rate. Five-point sampling technique was resonable, simple and convenient for investigating the disease. The optimum sample size was about 820.

为提高当归茎线虫病(Ditylenchus destructor)田间抽样的准确度,用7种聚集指标判断了当归茎线虫病的田间分布型。结果表明,当归茎线虫病在田间呈聚集分布,其中奈曼分布(核心分布)的适合率为100%,嵌纹分布(负二项分布)的适合率为77.8%。理论抽样数量约820株。4种抽样方法差异均不显著,在保证抽样数量合理的情况下,4种方法均可采用。

 
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