不同甘蓝型油菜抗耐低温冷(冻)生理指标可溶性糖含量的研究

Comparative Study on Determination of Physiological Index of Soluble Sugar of Different Brassica napus Resistance to Cold( Freezing)

[目的]为了选育出较抗低温冷冻的甘蓝型油菜。[方法]采用大田自然越冬和室内分析相结合的方法,分析12个不育系、6个恢复系、6个杂交种在低温下的可溶性糖含量。[结果]不育系1923AB、4281AB、恢复系D02R、57R、杂交油菜品种(系)宝油85、D1918、D257的可溶性糖含量在0.05水平显著高于同类材料或品种。[结论]6个材料或品种更能适应低温冷害,具较强的抗耐低温冷(冻)性。这与实际大田调查结果相符合。

[ Objective ] The research aimed to breed cabbage type rape which was more resistant to freezing. [ Method ] Using the field natural overwintering method and laboratory analysis, soluble sugar contents of 12 sterile lines, 6 restorer lines and 6 hybrids under low temperature were analyzed. [ Result ] The content of soluble sugar of the male sterile line 1923AB, 4281AB, DO2R, 57R, restorer lines of hybrid rape va-rieties （lines）Bao oil 85, D1918 and D257 was significantly higher than that of similar materials or varieties. [ Conclusion] 6 materials or spe-cies were better adapted to low temperature, and had strong resistance to cold （freezing）, which was in accordance with the actual field survey results.