Journal of Apicultural Science

Nectar secretion and honey potential of honey plants growing under Poland’s conditions part XIII

Journal of Apicultural Science. Volume 46, Issue 1, Pages 25-30, ISSN (Print) 1643-4439
Blooming, nectar secretion, and visitation by insects of 11 herbaceous plants grown on a podzolic light soil were investigated in Puławy in 1999-2001. The total output of sugars from 10 flowers averaged nearly 2 mg for Gypsophila paniculata, 5-6 mg for Ballota nigra and Onobrychis arenaria, 7-9 mg for Stachys lanata, Ajuga reptans and Anchusa officinalis, 15-20 mg for Echium vulgare, 20-30 mg for Chamaenerion angustifolium, 50 mg for Geranium sylvaticum, and 100(120) mg for Geum rivale and Asclepias syriaca.
The sugar output from 1 ha of a commonly well closed plant stand was measured at 60-70 kg for Geranium sylvaticum and Geum rivale, 100-110 kg for Ajuga reptans and Stachys lanata, 140-160 kg for Anchusa officinalis and Onobrychis arenaria, 200-250 kg for Chamaenerion angustifolium and Ballota nigra, 300 kg for Gypsophila paniculata and 400 kg for Asclepias syriaca and Echium vulgare.
All the species were abundantly visited by the honeybee and by wild bees. The majority of them (Anchusa officinalis, Echium vulgare, Asclepias syriaca, Onobrychis arenaria, Gypsophila paniculata and Ballota nigra) are suitable to be grown on idle lands in order to improve honeybee pastures.
honey plants, blooming, nectar secretion, foraging by bees
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