The effect of spring frosts on the nectar production and the bee visitation of fruit trees
2000
Benedek,P. | Nyéki,J. | Amtmann,I. | Bakcsa,F. | Iváncsics,J. | Erdïs,Z. | Skola,I.
Fruit tree species suffered very strong spring frosts in 1997 in Hungary.This caused partial or total damages at buds and flowers depending on site and time of blooming.It was demonstrated at a number of experiments that frost and cold weather also strongly affected the nectar production of surviving flowers.No or very little amount of nectar was measured in flowers first of all of early blooming fruit tree species (apricot) but also of pear and apple in some places.In spite of this fact intensive honeybee visitation was detected in the flowers of fruit trees that suffered partial frost damage only at those sites where honeybee colonies were placed in or at the experimantal plantations and tha lack of sufficient amount of nectar did not affected bee behaviour seriously on fruit flowers.
Afficher plus [+] Moins [-]Mots clés AGROVOC
Informations bibliographiques
Cette notice bibliographique a été fournie par National Agricultural Library and Documentation Centre
Découvrez la collection de ce fournisseur de données dans AGRIS