A Study on the Pollination of Bumblebees to Greenhouse White Gourd

A greenhouse white gourd field was divided into three groups in the experiment, the first pollinated by bumblebees, the second treated with hands, the last was control group. The result indicated that the rate of fruit set of bumblebees group had been increased 53 3% and 75 0% than that of hands group and control group, the weight per fruit had been increased 34 7% and 156 1%, the yield per plant had been increased 269 7% and 1220 9%, the fruits of bumblebees' were bigger and they have more seeds than that of the last two groups, Nevertheless, the absolute content of protein, cellulose, Ca, Fe and Zn of bumblebees group were more high than that of the last two groups.