REVIEW Reproductive physiology of mango

Mango flowering involves hormonal regulation of shoot initiation and induction events resulting in reproductive shoot formation. A balance or ratio of endogenously regulated phytohormones, thought to be auxin from leaves and cytokinins from roots, appears to govern the initiation cycle independently from inductive influences. Induction of reproductive or vegetative shoots is thought to be governed by the ratio of a temperature-regulated florigenic promoter and an age regulated vegetative promoter at the time of shoot initiation. Management of off-season flowering in mango trees is being accomplished in the tropics by successfully synchronizing shoot initiation through tip pruning and use of nitrate sprays coupled with management of the stem age to induce flowering such that it can be accomplished during any desired week of the year. Key words: auxin, cytokinin, flowering management, fruiting, hormones, Mangifera indica Fisiologia da reprodução em manga: A floração em manga envolve regulação hormonal de iniciação dos ramos e eventos indutivos que levam à formação de ramos reprodutivos. Um equilíbrio ou uma relação entre fito-hormônios regulados endogenamente, supostamente auxinas das folhas e citocininas das raízes, parece governar o ciclo de iniciação independentemente de influências indutivas. Acredita-se que a indução de ramos vegetativos ou reprodutivos