【摘要】 经济林优株及无性系测定的分级方法主要有生长量指标对比方法和综合评分方法,为克服这两种方法品质指标难以量化,缺乏系统性、关联性和综合性,不能对优株及无性系进行科学、合理分级的现状。在对核桃主产区毕节地区开展优株调查选择和无性系测定的基础上,建立定量指标与定性指标相结合的Fuzzy线性加权变换模型,对优株和无性系进行分级,选出Ⅰ级性状的无性系5个、Ⅱ级5个、Ⅲ级4个。从而拓展了优株及无性系测定的选择方法,取得了很好的应用效果。更多还原

【Abstract】 In order to solve the problems in the measurement of plus trees and clones, the plus trees and clones were classified by using the Fuzzy linear weighting transformation model combined with quantitative and qualitative indexes on the basis of surveying, selecting and clones tested for walnut in Bijie area. 5 clones of class I, 5 of class Ⅱ and 4 of classⅢ were selected. The method achieved very good effects.更多还原