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中国农学通报

中国农学通报 ›› 2019, Vol. 35 ›› Issue (4): 88-92.doi: 10.11924/j.issn.1000-6850.casb18090066

所属专题： 园艺

• 植物保护 农药 • 上一篇    下一篇

猕猴桃溃疡病田间分布型分析－以“徐香”为例

王茹琳   

  1. 四川省农村经济综合信息中心
  • 收稿日期:2018-09-14 修回日期:2018-12-30 接受日期:2018-10-31 出版日期:2019-01-31 发布日期:2019-01-31
  • 通讯作者: 王茹琳
  • 基金资助:
    高原与盆地暴雨旱涝灾害四川省重点实验室科技发展基金项目（省重实验室2018-重点-05-11和省重实验室2018-青年-31）和国家现代农业产业体系四川水果创新团队猕猴桃病虫害综合防治岗位（2013-2018）资助

Spatial Distribution Pattern of Kiwifruit Canker Disease on‘Xuxiang’in Field

  • Received:2018-09-14 Revised:2018-12-30 Accepted:2018-10-31 Online:2019-01-31 Published:2019-01-31

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摘要： 利用经典的聚集度指标法和回归分析法对猕猴桃溃疡病的空间分布型进行测定，以探明该病害的田间分布情况。结果表明：聚集度指标计算结果为C＞1，I＞0，m*/m＞1，CA＞0，K＞0，说明猕猴桃溃疡病病株在大田呈聚集分布，分布的的基本形式为个体群。根据Iwao抽样模型，获得不同病情等级情形下猕猴桃溃疡病大田抽样的最适理论抽样数，大田抽样数量随着病情指数的增加而递减。“徐香”猕猴桃大田溃疡病的序贯抽样模型为，并由此确定了该病害抽样的最佳样方大小。上述研究可有效提高调查抽样的效率，为提高该病害的田间调查的准确性和制定有效的防治措施提供依据。

Abstract: In order to find out the distribution of kiwifruit canker disease in the field, the spatial distribution pattern of the disease was determined by classical aggregation index method and regression analysis method in this study. The results showed that the calculated results of aggregation index were C＞1，I＞0，m*/m＞1，CA＞0，K＞0, which indicated that kiwifruit canker diseased plants showed aggregation distribution in the field, and the basic form of distribution was individual population. According to the Iwao’s model, the optimus theoretical sampling number for fild sampling of kiwifruit canker in different disease density was calculated. The sampling number negativel decreased with the diseas index increasing. The sequential sampling model was , and the optimum sampling square size was determined. The efficiency of investigation sampling was effectively improved through the above research courses.