作　　者： ; (沈宝成）;

机构地区： 华南农业大学资源环境学院

出　　处： 《西北农业大学学报》 1996年第6期6-10,共5页

摘　　要： 提出一套作物品种抗蚜性综合决策体系，其三级决策指标体系包括累积存活率、平均发育历期、平均产仔率、内禀增长率、种群干扰效应、自然感蚜量及品种耐害性；给出了模糊隶属函数和模糊综合决策模型的建立方法等。其决策结果能客观、全面地反映出作物品种的抗蚜特性，不仅在品种抗蚜性决策中有很好的应用效果。 The synthetic decision system designed for the resistance of crop varieties to aphid is established in this paper.The index system of the synthetic decision consists of accumulated survivals,mean development duration, mean reproductive rate,the innate capacity rate of increase ( r m ), the disturbance effect of crop varieties to aphid population,the compensatory and tolerant functions of different varieties,as well as the establishment ways of fuzzy subordinative function and the fuzzy synthetic decision models.Therefore,the result of the synthetic diecision is capable of objectively and comprehensively reflecting the characteristics of the resistance of varieties to aphid.This system is more practicable not only to the integrated management of aphid,but also to the determination of the resistance of crop varieties to other pests.

关 键 词： 作物品种 抗蚜性 综合决策 指标体系

领　　域： [农业科学] [农业科学] [农业科学] [农业科学] [农业科学]