Honey and Bee Stuff



James H. Cane with the Agricultural Research Service in Utah has been studying the effects of pollination by honeybees Apis mellifera and the solitary bee Osmia lignaria in raspberries and blackberries. These plants are generally self-pollinating and it is not necessary to place pollinating units (beehives) into fields to ensure fruit production. What Dr. Cane found was that there was a significant increase in berry size when the flower was pollinated by bees vs when only self-pollination occurred. When bees were present berries were found to be 30 percent larger. This appears to be because these flowers have multiple pistils and insect pollination results in a larger number of pistils receiving pollen and correspondingly developing into larger fruit.

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