Effects of temperature on axillary flower bud development and flowering of mango (Mangifera indica L.).
Chen IouZen, Cheng ChengYung
Author Affiliation: Taiwan Tea Experiment Station, Yangmei, Touyuan, Taiwan.
Chinese Journal of Agrometeorology 1 : 49-56
Abstract : Four-year-old potted plants of cv. Hayden [Haden?], bearing a terminal flower bud, were grown at day/night temperature regimes of 30/25°C, 25/20° or 20/15°. Plants grown at 30/25° had a shorter flowering period, fewer small flowers and a higher proportion of perfect flowers than those grown at the lower temperatures. Anthesis of the perfect flowers occurred in the early flowering stage at the 2 higher temperatures and in the later flowering stage at 20/15°. Axillary flower buds developed only in the 20/15° regime and emerged 1 month after the terminal bud was removed, with several developing simultaneously on a shoot. There were 2 flushes of axillary flowers, the first in Apr.-July and the second after Oct. The number and growth of new vegetative shoots was greater at 30/25° than at lower temperatures. There was a negative correlation between the number of axillary flower buds on a shoot and the proportion of perfect flowers.