Estudos silviculturais de uma população natural de Copaifera multijuga Hayne - Leguminosae, na Amazônia Central. IV. Interpretação de dados fenológicos em relação a elementos climáticos

Abstract

The author presents pheological monthly information from 82 mother-trees of Copaiba (Copaifiera multijuga Hayne), in Ducke Forest Reserve recorded during the period of February 1979 until December 1985. The occurance percentages of the flowering, fruiting and change of leaves are presented and it was analysed through a multiple regression with seven climatic variables: maxima temperature, minimal temperature, in °C; relative humidity %; total precipitation (mm); total insolation (hour); and total net evaporation (mm). Trees in complete flowerinh has occured during the wet season and the fruiting (mature fruits) has showed maximum peaks at the end of the rainy season and begining of the dry season. This behaviour is different from the majority of all tropical forest species, which usually are flowering in the dry season. Copaifera multijuga is a evergreen species and the leaves has appeared befoie the floweeing phase.