In the genus Allium, nectar secretion starts at the time of anthesis and ceases parallel with the wilting of the tepals, stamens, and style. The umbel-like inflorescence comprises 8–12 trimeric flowers, with a septal nectary between the base of the ovary and the stamens of the inner circle, characteristic for the Alliaceae family. Ramson blooming starts in the second half of April and finishes in the first half of May. The plant is valued by bee keepers, as well, since ramson flowers can serve as pollen and nectar sources for honeybees, completing the spring bee pasture. ucrainicum.īesides being consumed fresh or cooked, ramson is a popular medicinal plant, lowering blood pressure, being effective against arteriosclerosis, diarrhea, and indigestion. The populations selected for the purposes of the present study belong to ssp. ucrainicum is distributed in East Europe, with a western pontic-western sarmatic character. ursinum is confined to the western and southern parts, being a subatlantic-submediterranean flora element, while ssp.
ursinum is densely papillated and rough as opposed to the smooth pedicels of ssp. In Hungary, the largest populations can be found in Bakony and Mecsek hills, in the form of a continuous underwood layer in hornbeam-oak and beech forests. (ramson or wild garlic) is a perennial plant, widely distributed in Europe, occurring in various deciduous woodlands, preferring damp shadow places, meso- and eutrophic, neutral to moderately acid soils of the hilly and the mountainous vegetation belt.
During full bloom, the date of sampling did not have a profound effect on either nectar volume or concentration. In the silver lime-flowering ash rock-forest association mean nectar volumes and concentrations were lower than in a typical sessile oak-hornbeam association on three occasions, the difference being significant in two cases. Both the amount and quality of nectar were affected by microclimatic conditions and soil properties and varied between populations at different habitats. Mean nectar volumes and concentrations showed significant differences between freely exposed flowers and covered flowers, which had been isolated from flower visitors 24 h prior to nectar studies.
Daily nectar production ranged from 0.1 to 3.8 μL per flower with sugar concentrations of 25 to 50%. ucrainicum) were investigated in three different habitats, including two types of sessile oak-hornbeam association on brown forest soil with clay illuviation and a silver lime-flowering ash rock forest association on rendzina. Floral nectar volume and concentration of ramson ( Allium ursinum L.
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