ISHS Acta Horticulturae 288: VI International Symposium on Pollination
POLLINATION OF PRIMULA IN A GREENHOUSE USING BUMBLEBEES |
| Authors: | HAYO H.W. VELTHUIS, L. COBB |
| Abstract:
Production of hybrid Primula seeds is usually dependent on hand pollination. In this paper results are described of an experiment in which various bumblebee species were studied for their pollination efficiency. The best results were obtained with B. pascuorum queens; a few queens together, when still in their solitary phase, produced a seed production of 50% as compared to the hand-pollinated control. | |
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