Aspectos fenológicos, ecológicos e de produtividade da sorva (Couma utilis Muell. Arg.)

Abstract

Data or phenology, ecology and productivity of "sorva" (Couma utilis Muell Arg.) are here presented. In Manaus, the species flowers and sets fruit during the height of the rainy season with the crop during the dry season. Eleven species of insects were found visiting the species of which ten were Apiidae and one Heliconiidae. It is postulated that there is no pollination specificity. The number of flowers produced varied between 21.000 and 47.000 in the ten trees studied with fruit set or between 10 and 15%. Very high correlations were found between number of flowers and other production parameters such as green fruit, mature fruit and crop weight suggesting that factors other than pollination may play important roles in determining crop size.