Flowering biology, nectar production and insect visits in Cucurbita pepo L. flowers
2006
Dmitruk, Marta
In 1998-2000 studies on length and abundance of flowering and on nectar productivity of zucchini and marrow (Cucurbita pepo L.) were carried out in Lublin area. Flowers visitors were also monitored. Flowering of plants lasted from the end of June till the end of September. The mean number of flowers per plant of zucchini reached: 31 (male flowers) and 26 (female flowers), and for marrow 226 and 22, respectively. Flowers lived, on average, for 5 hours. Female flowers of marrow secreted the highest amount of nectar - 1.354 g per 10 flowers, on average. Sugar content in nectar was 21.84%-27.31%. The mean total amount of sugars secreted by 10 flowers of Cucurbita pepo L. was 21.5-304.3 mg. Pollinators were mainly bumblebees and honey bees.
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