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Honey bee visitation to sunflower: effects on pollination and plant genotype Scientia Agricola
Chambó,Emerson Dechechi; Garcia,Regina Conceição; Oliveira,Newton Tavares Escocard de; Duarte-Júnior,José Barbosa.
Sunflower (Helianthus annuus L.) is an allogamic plant, which needs insects on flowering, especially the honeybees for seed production. Collecting nectar and pollen by honeybees in agricultural crops is essential to apiculture, as well as a better understanding of plant biology. The foraging behavior of Africanized Apis mellifera L. (Hymenoptera, Apidae) and its efficiency of pollination on seed yield of sunflower genotypes (open pollination and restricted pollination) were evaluated. There were peaks of visits by A. mellifera for nectar collection on the 2nd and 3rd flowering days between 7h00 and 8h30. The average density of A. mellifera during increased visitation ranged from 2.27 to 2.94 bees per capitulum. Nectar collecting bees were more frequent...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apis mellifera; Pollinators; Floral resources; Yield.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000600007
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