In the critical period of bud physiological differentiation of Longan, ETH and IAA contents in leaves of trees of winter flush controlling were higher than those of trees without winter flush controlling; but GA3 content is reverse.

• 在龙眼花芽生理分化期，控冬梢处理叶片的ETH、IAA含量比不控处理高，而GA_3刚好相反；