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Variation in nectar volume and sugar concentration of Allium ursinum L. ssp. ucrainicum in three habitats / Ágnes Farkas in The Scientific World Journal, 2012 (2012) 

Public Citation [article]  inThe Scientific World Journal > 2012 (2012) . - 1-7 Titre : Variation in nectar volume and sugar concentration of Allium ursinum L. ssp. ucrainicum in three habitats Type de document : Imprimé Auteurs : Ágnes Farkas ; Réka Molnár ; Tamás Morschhauser ; István Hahn Année de publication : 2012 Article en page(s) : 1-7 Mots-clés : Allium ursinum L. Résumé : Floral nectar volume and concentration of ramson (Allium ursinum L. ssp. 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. Daily nectar production ranged from 0.1 to 3.8 μL per flower with sugar concentrations of 25 to 50%. 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. Both the amount and quality of nectar were affected by microclimatic conditions and soil properties and varied between populations at different habitats. 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. During full bloom, the date of sampling did not have a profound effect on either nectar volume or concentration. Lien pérenne : DOI : 10.1100/2012/138579 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=151731 Farkas, Ágnes, Molnár, Réka, Morschhauser, Tamás, Hahn, István 2012 Variation in nectar volume and sugar concentration of Allium ursinum L. ssp. ucrainicum in three habitats. The Scientific World Journal, 2012: 1-7.

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