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本研究探讨了初花期喷施多元醇对甘蓝型油菜的光合效应及增产效果,结果表明:多元醇能提高叶片叶绿素含量和光合速率,延长后期叶片寿命,增加绿色角果皮面积,从而增强了植株的光合作用能力,提高了油菜的结角率.同时,多元醇能改善油菜的经济性状,增加主花序有效长度、单株角果数、每角粒数和单株粒重,因而增产效果明显.4ppm和2ppm处理的产量分别比对照增产18.2％和7.2％.喷施多元醇对油菜籽的品质无不良影响,对油菜的生育期也影响不大.
In this study, the photosynthetic effect and yield increase of spray-sprayed polyols on Brassica napus were studied. The results showed that the polyols can increase the leaf chlorophyll content and photosynthetic rate, prolong the leaf life and increase the area of green angle pericarp, The photosynthesis ability of rapeseed increased the knotting rate of rapeseed.At the same time, polyols could improve the economic traits of rape, increase the effective length of main inflorescences, the number of per plant, the number of per plant and the weight per plant, The yields of 4ppm and 2ppm treatments increased by 18.2% and 7.2%, respectively, compared with the control. Spraying polyols had no adverse effect on the quality of rapeseed and had little effect on the growth of rapeseed.