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近几年,小麦锈病、白粉病频繁发生,已成为小麦稳产高产的主要障碍。一些研究资料证明,植株抗病性的变异,来自病原微生物的生理分化现象和品种的遗传变异,也与气温、降水,日照、栽培管理等条件有关。作为基层农技推广人员来说,不能改变这种变异.却能超前发现推广品种的变异,并发现新的接班品种,从而选择耐病品种,进行合理布局。为此,我们积极开展了耐病品种的选择和应用。在普查当地小麦推广品种的基础上,进行现有品种的合理布局,同时引新品种,以当地当家品种为对照,种植观察圃,进行地区适应性鉴定,观察各个品种的丰产性和抗病性。从而选优汰劣。翌
In recent years, the frequent occurrence of wheat rust and powdery mildew has become the major obstacle to stable and high-yield wheat. Some research data prove that the variation of plant disease resistance comes from the physiological differentiation of pathogenic microorganisms and the genetic variation of cultivars, and also with the conditions of temperature, precipitation, sunshine and cultivation management. As grassroots agricultural extension staff, can not change this variation, but it can advance to identify the variation of the promotion of varieties, and find new succession varieties, thus selecting resistant varieties, the rational distribution. To this end, we actively carry out the selection of resistant varieties and applications. On the basis of census of local varieties of wheat promotion, the rational distribution of existing varieties, while introducing new varieties, with local varieties as a control, planting observation nursery, regional adaptability identification, observation of all varieties of high yield and disease resistance . Thus selecting the best eliminated inferior. next