甘兰型油菜品质性状的变化与抗(耐)菌核病的关系

A Study on the Reiation Between Changes of Guality Trait and Disease Resistant (Bearable) Sclerotinia Rot in Brassica Napus

经1987～1992年时甘兰型油菜品质资源田间自然抗病性的连续观察鉴定(包括同一品种不同品质的单株)和同一品种不同发病级别单株种子内芥酸、硫甙、油份等品质的测试分析。结果是油菜菌核病的发病程度与这些品质性状的关系密切。即抗病性的强弱与芥酸、硫甙的含量成正相关,与油份的含量成反相关,不同发病级别的单株种子与产油量成反相关。根据分析结果笔者认为,在进行双低油菜育种过程中,应将低代材料置于易于发生菌核病的环境中选择,在发病极度严重时还要注重保留那些耐病的单株,这是集优质、丰产、耐病为一体的有效途径。同时在优质油菜生产中要作好防病工作。

A successive observation was made on nature field trail to determine varietal resistance of resource of quality rape in brassica napus (including single plant of different quality trait with the same cultivar) and a test analysis on quality trait of erucic glucosinolates, oil content and soon, in seed of different palhogenetic grades plant with the same cultivar. The rescelt indicated that there is a close relation between pathogenicity of rape sclerotinia rot and these quality traits namely, there is a pos...