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NECTAR SECRETION IN DANDELION

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Journal of Apicultural Research
Vol. 23 (4) pp.204-208
DOI
          ___
Date
December 1984
Article Title
NECTAR SECRETION IN DANDELION
Author(s)
T I SZABO
Abstract

Nectar secretion was studied in dandelion growing in a crested wheat-grass field in the Peace River region of Alberta, Canada. The average number of flowers produced daily in an area 1 m2 was 59'2 in 1981 and 8'9 in 1982. Most flowers opened in the morning and closed in the afternoon. Quantity and concentration of nectar were significantly higher in flowers 2 days old than in those 1 day old. Average nectar volume, sugar concentration and sugar value were 7'4 ~dlflower, 55'1% and 5' 2 mglflower/24 h respectively in 1981 and 3'7 ~IVflower, 42'6% and 1'9 mglflower/24 h in 1982. Larger flowers produced more nectar. Nectar-sugar concentration and sugar value increased with increasing temperature. High nectar-foraging activity by honeybees coincided with peak nectar-sugar production.

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