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运用灰色关联度分析法,对云南咖啡育苗措施中各步骤与幼苗立枯丝核菌的防治效果间的关系进行分析,结果表明:咖啡育苗措施与立枯丝核菌防治效果的灰色关联度为:苗床整理0.754 9、浸种0.482 3、拌种0.704 5、播种0.668 7、盖种0.848 9、保水0.743 2、苗床管理0.650 1,其关联度及权重排序均为:盖种>苗床整理>保水>拌种>播种>苗床管理>浸种;苗床整理、盖种和保水措施对防治效果的影响最大,提高育苗材料的清洁度,可降低立枯丝核菌对咖啡幼苗的侵染几率。
Gray relational analysis was used to analyze the relationship between each step in Yunnan seedling raising measures and the control efficacy of Rhizoctonia solani. The results showed that the gray relational degree between the coffee seedling raising measures and Rhizoctonia solani was : Seedbed finishing 0.754 9, seed soaking 0.482 3, seed dressing 0.704 5, sowing 0.668 7, covering 0.848 9, retaining water 0.743 2, seedbed management 0.650 1, the relevance and weight of the order are: cover seed> finishing> Seed dressing> seedbed management> seed soaking; seedbed finishing, covering and water conservation measures have the greatest impact on the control effect, and raising the cleanliness of seedling raising materials can reduce the infection probability of Rhizoctonia solani to coffee seedlings.