Changes of Sugarcane Flower Bud Differentiation Induced by Photoperiod and Physiological Metabolism in the Process of Flowering Reversion
‘ROC16’ and‘ROC22’ which are shy-lfowering under nature conditions were used as experimental materials. Changes of carbohydrate and soluble protein of the leaf induced by photoperiod in the process of sugarcane lfower bud differentiation and lfowering reversion were studied. The results showed that the contents of soluble total sugar, starch and protein were without apparent changes after induced by photoperiod compared with control before differentiation. But from lfowering induced period, the contents of soluble total sugar, starch and protein were increased rapidly, signiifcantly higher than the control. As the further development of lfower bud differentiation, the contents of total soluble sugar and starch reduced gradually, even lower than the control, still at a low level, while the contents of soluble protein were always higher than the control. The contents of soluble total sugar, starch and protein of the leaf lfowering reversion in the early period of lfower bud differenti-ation were all higher than the control, but lower than the normal lfowering plants. As the lfower bud differentia-tion stop, the contents of soluble total sugar and starch still retained stable level, only protein slightly reduced. The experiment showed that the process of gene expression and protein synthesis in the sugarcane lfower bud differentiation period needed to consume a lot of carbohydrates.
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NSTL
万方数据
维普
