稻谷在储藏期对玉米象抗性的模糊聚类分析

THE APPLICATION OF FUZZY CLUSTERING ANALYSIS FOR STUDYING THE RESISTANCE OF STORED RICE GRAIN OF DIFFERENT VARIETIES TO MAIZE WEEVILS

作者考察了目前常用的抗虫指标,结果表明,采用不同的抗虫指标作为稻谷抗虫性分级的评定标准,其结果并不完全一致。因此,作者运用模糊聚类分析综合9个抗虫指标,对供试的22个水稻品种抗虫性进行了综合评估。筛选出中87156、花粳2号、665、浙852、鄂宜105、红水糯、HA88377等7个抗虫品种,占供试晶种总数的31.82%;4个感虫品种:Ⅱ优46、秀水48、加42、沪粳 P339,占供试品种总数的18.18%。其它被测试的品种仅在某些方面表现一定的抗虫性。

In this paper,the fuzzy clustering analysis was carried out usingnine parameters of rice to synthetically appraise the resistance ofstored grain of 22 rice varieties to maize weevil Sitophilus zeamais Mots-chulsky.Seven resistant varieties,Zhong 87156,Huageng 2,665,Zhe852,E-yi 105,Hongshuinuo and HA 88377,and four susceptible varie-ties,Ⅱ You 46,Xiushui 48,Jia 42 and Hugeng P 339,31.82% and18.18% of total varieties respectively,were determined.The otherswere resistant in some aspects and susceptibly in other aspects.