科研之友
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摘要
O objetivo deste estudo foi verificar a influ那ncia de Apis mellifera na produ o de gr os e qualidade de sementes da soja transg那nica Glycine max (L.) Merrill Roundup Ready e convencional. A soja transg那nica foi plantada intercalada com a convencional, em 18 parcelas, em tr那s tratamentos: gaiolas com abelhas A. mellifera, gaiolas sem abelhas e 芍reas descobertas, com livre visita o de insetos. Na soja transg那nica, em tr那s parcelas de cada tratamento, foi aplicado glifosato, 30 dias ap車s a emerg那ncia. Os parametros analisados foram: produ o de gr os; n迆mero de vagens por planta; peso de 100 sementes e porcentagem de germina o das sementes. N o houve diferen a entre as cultivares, entretanto a produ o de 2.757,40 kg ha-1 obtida na 芍rea coberta por gaiola com abelhas, e2.828,47 kg ha-1 na 芍rea livre para visita o de insetos foram superiores a 2.000,53 kg ha-1 da 芍rea coberta por gaiola sem abelhas. O n迆mero de vagens por planta foi maior na 芍rea coberta por gaiola com abelhas (38,28) e 芍rea livre (32,65), quando comparado com o da芍rea coberta por gaiola sem abelhas (21,19). O peso m谷dio de 100 sementes e a germina o das sementes n o foram diferentes entre as cultivares e nem entre os tratamentos. Concluise que, para as cultivares estudadas, houve benef赤cio na produ o de gr os de 37,84%,quando foi permitida a visita de abelhas. This research was carried out to evaluate the influence of Africanized honeybees in grain production and seed quality of Glycine max (L.) Merrill Roundup Ready 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 h
