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Acta Scientiarum. Agronomy

versão On-line ISSN 1807-8621

Resumo

CHIARI, Wainer César et al. Pollination by Apis mellifera in transgenic soy (Glycine max (L.) Merrill) Roundup ReadyTM cv. BRS 245 RR and conventional cv. BRS 133. Acta Sci., Agron. [online]. 2008, vol.30, n.2, pp.267-271. ISSN 1807-8621.  http://dx.doi.org/10.4025/actasciagron.v30i2.1787.

This research was carried out to evaluate the influence of Africanized honeybees in grain production and seed quality of Glycine max (L.) Merrill Roundup ReadyTM transgenic soy, as well as of conventional soy. Transgenic soy was interposed with conventional soybean, in 18 plots and three treatments: covered area with Africanized honeybees, covered area without honeybees, and uncovered area with free insect visitation. The herbicide Glyphosate was applied on three plots of each treatment of transgenic soy, 30 days after emergence. Grain production, number of pods/plant, weight per 100 seeds, and seed germination percentage were evaluated. There was no difference among cultivars; however, the production in the covered area with honeybees (2757.4 kg ha-1) and in the uncovered area (2828.47 kg ha-1) were higher than in the covered area without honeybees (2000.53 kg ha-1). The number of pods/plant was greater than in the covered area with honeybees (38.28) and in the uncovered area (32.65) as compared to the covered area without honeybees (21.19). The weight per 100 seeds seed germination did not differ among cultivars or treatments. It can be concluded that, for these cultivars, there was a rise in grain production of 37.84% when honeybee visits were allowed.

Palavras-chave : Transgenic soybean; pollination; Apis mellifera; Glycine max; Roundup ReadyTM.

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