甜樱桃花芽形态分化观察

目的]了解甜樱桃的花芽分化规律，为遵义甜樱桃的生产管理提供依据。方法]以结实期的7年生红灯、大紫、美早、砧木ZY-1为试材，利用石蜡切片法对遵义甜樱桃花芽进行显微观察。结果]从花芽分化开始到雌蕊原基分化完成，历时约80d。甜樱桃形态分化开始于5月中下旬，花序原基分化始于5月下旬到6月初，持续到6月底到7月上旬；萼片原基、花瓣原基、雄蕊原基的产生，相互间隔时间不长，萼片原基分化始于6月中下旬，花瓣原基分化始于6月底到7月上旬，雄蕊原基分化始于7月上中旬；雌蕊原基分化始于7月上中旬，8月底多数完成分化。7、8月是甜樱桃花芽形态分化的关键时期。结论]甜樱桃的花芽形态分化开始于5月下旬，集中在7—9月。

Observation on the Flower Bud Morphological Differentiation of Sweet Cherry

Objective] The purpose was to learn about the flower bud morphological differentiation law of sweet cherry so as to provide basis for its production and management in Zunyi.Method] With 7 years old Hongdeng,Dazi,Meizao and rootstocks ZY-1 in fruiting stage as tested materials,the flower buds of sweet cherry in Zunyi were observed under microscope by paraffin sectioning method.Result] The period from the beginning of flower bud differentiation to the completion of pistil primordium differentiation was abo...