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	Provedor de dados 88 (2) Autor Jong,David de (2) Morse,Roger A. (2) Vidal,Maria das Graças (2) Wien,Hans Chris (2) Palavra-chave Apis mellifera (1) Bee attractiveness (1) Flower production (1) Honey potential (1) Nectar production (1) Nectary pore (1) Pollen deposition (1) Pollen production (1) Sugar concentration (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2010 (1) 2006 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Pollination and fruit set in pumpkin (Cucurbita pepo) by honey bees 88 Vidal,Maria das Graças; Jong,David de; Wien,Hans Chris; Morse,Roger A.. Species of Cucurbitaceae are cultivated worldwide and are depend on bee pollination for fruit set. Field and lab experiments were conducted at Cornell University, Ithaca, NY, during 1996 and 1997 to determine "Howden" pumpkin (Cucurbita pepo L.) pollen removal and deposition by honeybees and factors relating to male flower attractiveness. Several parameters were evaluated in flowers at anthesis: (1) removal of pollen from anthers by honey bees, (2) pollen deposition on the stigma by honey bees, (3) amount of pollen on the body of honey bees, (4) fruit set after bee pollination, and (5) male flower nectary's pores and flower attractiveness. Honey bees carried between 1,050 to 3,990 pollen grains and 13,765 were removed from an anther after one visit. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Apis mellifera; Bee attractiveness; Nectary pore; Pollen deposition. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042010000100010 Nectar and pollen production in pumpkin (Cucurbita pepo L.) 88 Vidal,Maria das Graças; Jong,David de; Wien,Hans Chris; Morse,Roger A.. Cucurbitaceae species depend on pollination by honey bees for fruit production. The overall objective of this work was to evaluate the potential of C. pepo for pollen and nectar production, that could help maintain colonies placed in the field. Plants of pumpkin were cultivated in field, in 1996 and 1997. Before anthesis, male flowers were covered to prevent visits by bees and other insects. After anthesis the flowers were uncovered and the following parameters were evaluated: 1) nectar production; 2) total sugar concentration in the nectar; 3) nectar replacement; and 4) production of pollen and flowers during the crop cycle. Nectar production varied from 18 to 79 µL flower-1 and increased progressively from 7h to 13h. The sugar concentration, measured at... Tipo: Info:eu-repo/semantics/article Palavras-chave: Flower production; Honey potential; Nectar production; Pollen production; Sugar concentration. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042006000200008 Registros recuperados: 2 Primeira ... 1 ... Última

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