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以来自不同国家、不同地区的34份芥菜型油菜为试验材料,对芥菜型油菜自交亲和性进行了分析,结果表明,芥菜型油菜大部分为自交亲和类型,但芥菜型油菜的自交亲和性差异较大,亲和指数在0.25~9.73间。这种差异不仅存在于品种间,而且存在于亚种间。在34份参试材料中,2个品种表现为自交不亲和(0<亲和指数<1.00),14个品种表现为自交亲和(亲和指数>1),18个品种表现为高自交亲和(亲和指数>4.00)。自交亲和性因地区而异,虽然我国有的芥菜型油菜品种的自交亲和性较高,但是整体存在较大的差异,有自交亲和品种,也有自交不亲和品种。芥菜型油菜是自交亲和植物,自交亲和材料中也有自交不亲和类型,因而通过定向培育可育成自交不亲和系,对进一步利用杂种优势、大量筛选找到优良杂交组合并进行杂交种的生产具有重要的意义。
In this study, 34 essential oil mustard (Brassica napus L.) from different countries and regions were tested for self-compatibility of Brassica juncea. The results showed that most of Brassica juncea was self-compatible, but Brassica juncea Self-compatibility greatly different, affinity index in the 0.25 ~ 9.73. This difference exists not only among breeds but also between subspecies. Among the 34 tested materials, 2 cultivars showed self-incompatibility (0 1), 18 cultivars showed High self-compatibility (affinity index> 4.00). Self-compatibility varies from region to region. Although some self-compatibility of Brassica juncea varieties in China is high, there are big differences among them. There are self-compatible varieties and self-incompatible varieties. Brassica juncea is an inbred plant and self-compatible material also has self-incompatibility type. Therefore, self-incompatibility lines can be bred by directional cultivation, hybrids are further screened out by further utilizing heterosis, The production of hybrids is of great significance.