IMPACT FACTOR 2016
0.722
 
Journal of Apicultural Science
 
Abstract:

Nectar secretion and honey potential of honey-plants growing under Poland's conditions - Part XV

Journal of Apicultural Science. Volume 49, Issue 1, Pages 59-63, ISSN (Print) 1643-4439
In the years 2000-2004 11 herbaceous plant species growing on a light podzolic soil in Puławy were tested for their beekeeping value.
It was found that the total amount of sugars secreted on the 10-flower basis was ca. 0.4 mg for Eupatorium cannabinum, 1-2 mg for Anthyllis vulneraria, 2-3 mg for Onopordon acanthium and Trifolium incarnatum, 4-6 mg for Dahlia variabilis, Echinacea purpurea and Silphium perfoliatum, 20-30 mg for Echinops ruthenicus, Lathyrus silvester and Sida hermaphroditis, ca. 40 mg for Echinops ritro. The amounts of sugars yielded by 1 ha of a dense stand of Anthyllis and Lathyrus were ca. 50(60) kg, Onopordon 90 kg, Trifolium 110 kg, Eupatorium 130 kg, Dahlia and Echinacea 150 kg, Echinops ruthenicus and Sida 180(190) kg, Echinops ritro 380 kg, Silphium 450 kg. The flowers of the surveyed species were visited from morning until evening mainly by the honeybee and also by wild bee-like insects as well as by Diptera, that were interested in nectar and in pollen.
In principle, all species tested in this survey deserve the attention of beekeepers because in the areas of their occurrence they enrich nectar flows and the forage supply to insect pollinators in general.
Keywords:
melliferous plants, blooming, nectar secretion, visitation by bees
 
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