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以7个甘蓝型油菜品种为试材,比较研究了甘蓝型油菜在超高产区云南临沧和对照地重庆北碚(长江流域)产量形成的相关特性.结果表明:收获期云南临沧油菜株高低于重庆北碚,茎粗、光合效率、单株干质量、产量、有效分枝数、有效角果数均极显著或显著高于重庆北碚;经统计分析得出超高产油菜经济产量高主要是通过增加单株有效分枝数、一次分枝角果数和二次分枝角果数来实现的.该研究可为油菜高产育种、栽培及代谢调控提供有益的参考资料.
Seven rapeseed (Brassica napus L.) cultivars were used as experimental materials to study the correlations between yield and yield of Brassica napus L. in Lincang, Yunnan Province and Chongqing Beibei (Yangtze River), a comparative high yielding region. The results showed that: In Beibei, Chongqing, stem diameter, photosynthetic efficiency, dry weight per plant, yield, number of effective branches and number of effective pods were all significantly or significantly higher than those of Beibei Chongqing. The statistical analysis showed that the economic yield of super- Increase the number of effective branches per plant, the number of primary branchlets and the number of secondary branchlets.In this study, we can provide useful references for high yield breeding, cultivation and metabolism regulation of rapeseed.