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抗病品种已在生产上广为应用,但由于种子带菌问题,限制了推广。本试验为探讨能否培养不带菌的抗病品种,在无病区繁殖利用。 一、试验方法与经过 本试验从1974年开始,在防治基点上选留8个抗病优良株系,再劈检选留无病单株,每株留5—6粒种子,作为基础材料(要求衣分38％,绒长29mm以上)。翌年进行“过渡种植”,摇前用硫酸脱绒,再用0.2％“402”药液温汤浸种。以及0.5％多菌灵药液浸种24小时,播后第一年主要观察苗期、蕾期是否发病,如是连续两年。1978年秋经选择和室内考种,留株行材料24个,株系材料16
Disease-resistant varieties have been widely used in production, but because of the problem of seed carriers, limiting the promotion. This experiment is to explore the possibility of cultivating non-bacterial resistant varieties, breeding in the disease-free zone. First, the test method and after the test From 1974 onwards, the control point selected on the base of eight disease-resistant strains, and then check the selection of disease-free single plant leaving 5-6 seeds per plant, as the basic material ( Requires clothing 38%, velvet length 29mm or more). The following year “transitional planting”, shake off with sulfuric acid, and then 0.2% “402” liquid temperature soaking soup. And 0.5% carbendazim solution soaked for 24 hours, the first year after sowing the main observation seedling stage, bud stage is the case, if this is the case for two consecutive years. Autumn 1978 by the choice and indoor test species, stay line material line 24, line material 16