The Relationship Between Flower Bud Differentiation and the Changes of Metabolism-related Enzyme Activity in Castanea mollissima‘Bayuehong'

Taking Castanea mollissima‘Bayuehong'as material,the relationship between flower bud differentiation and related enzyme activity in‘Bayuehong'were studied,in order to provide theoretical basis and technical support for the work of fruit genetic breeding.The results showed that the IAA content decreased due to the large number of oxidation in the process of chestnut female flower differentiation;the CAT activity in chestnut flower buds was increasing as the flower bud differentiation went on,but the increasing trend became gentle in the last period;the change of peroxidase activity in front of the flower bud differentiation increased gradually until the activity reached to the highest value in the flower bud differentiation stage;the decreasement of amylase activity in the differentiation period was beneficial to the flower bud differentiation.