西藏白菜型春油菜新品种(系)比较试验

Comparative Test on New Spring Rapeseed(Brassica rapa) Strains in Tibet

鉴定14份白菜型春油菜新品种(系)在不同生产条件下的适应性。采用品种比较试验方法研究白菜型春油菜的适应性,分析产量性状与经济性状间的关系。结果表明,参试品系143280-1,平均增产15. 73%,综合性状好,提升为下一轮的区试。淘汰4个品系为125343-3、125280-2、125013-1、103141-2,留作育种中间材料。其余品种(系)明年继续留试。由此可得,株高、分枝数目、角果密度、单株角果数、每角果粒数选育优质高产白菜型春油菜新品种(系)的参考指标。

The present paper aims to identify the adaptability of 14 new spring rapeseed lines under different production conditions. The adaptability of spring rapeseed was studied by the comparative test method,and the relationship between yield traits and economic traits was analyzed. It indicated that the test sample was 143280-1,with an average yield increase of 15. 73 %. The comprehensive traits were good and upgraded to the next round of regional trials. The four lines were eliminated from 125343-3,125280-2,125013-1,and 103141-2,and were reserved for breeding intermediate materials. Other varieties( lines) remain trial next year. It could be concluded that plant height,number of branches,pod density,number of pods per plant,number of pods per pod were selected as reference indicators for high quality and high yielding spring rapeseed varieties( lines).