番石榴生长发育与热量条件关系的研究

Research on Relationship between Psidium Guajava L. Growth and Heat Conditions

番石榴属热带果树,但其花芽分化无需经过低温休眠阶段,从投产树上抽生的新梢一年四季均具有开花的能力。番石榴生长发育的快慢、年内果实成熟批次与热量条件具有密切的关系。本文主要分析台湾珍珠番石榴从新梢萌动至盛花、正造果开花至成熟、番花果盛花至成熟所需≥15℃的有效积温以及番石榴高效栽培中的关键技术问题。

Psidium Guajava L. belongs to tropical fruit,with shoot differentiation not experiencing low temperature dormancy,and the new branch allowing to be flowering in a year. Psidium Guajava L.growth and the times of fruit ripening are closely related to heat conditions. This paper suggests some critical and technological solutions to more effective culture of Taiwan pearl guajava including shooting from new branch to full flowering stage,normal bearing fruit to ripening and available accumulation temperature（15℃）the guajava demands from full flowering to ripening.