The results of treatment with TDS regulator before or during male inflores-cence
showed that:1.the growth of the male inflorescence was inhibited,the developmentof a few
potential female buds was accelerated and the ratio of female flower to male inflores-cence
changed from 1:7.12 to 1:2.66.2.the chlorophyll and sucrose contents in leaves onflowering
branch by treatment with TDS regulator increased by 24.9%and 55.2%respec-tively.3.the
nutrition composition in fruit of Chinese chestnut by treatment with TDS regu-lator was no better
than that of the control,but the soluble sugar content increased obvious-ly. In addition,the
physiological effect of TDS regulator was discussed from the point ofview of carbon nutrition.