西藏野生油菜单株粒重优良种质资源分析

Analysis of Good Gemplasm Source on the Seed Weight Plant of Wild Rape in Tibet

主要研究了西藏野生油菜,特别是野生白菜型油菜和野生芥菜型油菜单株粒重的种质资源。通过对采集来的西藏野生白菜型油菜和野生芥菜型油菜株粒重种质资源的研究与鉴定发现:在西藏野生油菜种质资源中,野生白菜型油菜存在着株粒重低级到株粒重高级的2个等级;而在西藏野生芥菜型油菜种质资源中,存在着株粒重低级到株粒重高级的3个等级,其中野生芥菜型油菜种质资源株粒重较高的材料所占的比例明显强于野生白菜型油菜。并且通过大田鉴定从中分离出一些优质的西藏野生油菜种质资源,如:野白13(9 g/株)、野芥6(13.4 g/株)、野芥24(11.6 g/株)、野芥25(17.7 g/株)、野芥29(11.0 g/株)、特别是野芥15(27.1 g/株)和野芥26(20.4 g/株)等单株粒重高的优良种质资源。

The article studied about the wild type of Tibetan rape seeds, including mustard and cabbage type of gemplasm. It discovered that these were two degrees of seed/plant weight in cabbage type of wild rape, and there were the three degrees of seed/plant weight of wild mustard type. And the most varieties of mustard type＇s seeds weight were greater than cabbage type. As well as, we selected plant in the field and got some good quality and high seed/plant weight gemplasm, such as Yebai 13 （9 g/plant）, Yejie 6 （15 g/plant） and Yejie 26 （20.4 g/plant）.