Entomophilous pollination in peach (Prunus persica L.)

Abstract

This experiment, accomplished in the area of Jaboticabal (SP), it used a peach culture (Prunus persica L.), during yours bloomed with the purpose of verifying the insects visitors performance in the flowers in the production of fruits. The medium concentration of sugar in the nectar and the medium amount produced a day of nectar it is of 27,9% and of 3,2 mg, respectively. The medium weight of the anthers for flower was of 1,59 mg. The honeybee Apis mellifera (73%) it was the principal insect visitor followed by the Trigona spinipes (17%) and Xylocopa sp (4%). The presence of hummingbird was observed (6%), collecting nectar. The maximum frequency of the bees A. mellifera, for nectar collection and pollen, happened the 12 hours. The number of resulting fruits of the treatment in that the flowers received the visits it was 14% larger than in the treatment in the flowers were not visited. Of the total of fruits picked in the covered treatment (without visits), 82% came perfect, with good formation and symmetry. In the discovered treatment, 90,2% came with good formation, having difference statistics among the two treatments.