Effect of artificial pollination and natural pollination on development and production of pitaya

To study effects of different pollination treatment on fruit development and yield of pitaya(Hylocereus undatus BrittRose),artificial cross pollination and artificial self-pollination as well as natural pollination were treated to flowers.Results suggesting that the average percentage of flower buds dropping accounts to 61.9%.The fruit set percentage of artificial cross pollination and artificial self-pollination treatment was higher than natural pollination treatments significantly.The growing speed of fruit volume and percentage of commercial fruit as well as average single fruit weight on artificial cross pollination and artificial self-pollination treatment is higher than natural pollination treatments apparently.Yield(per 667 m2)of artificial cross pollination and artificial self-pollination treatments was 787.6～1381.6 kg higher than natural pollination treatments while output value has a increment of 2775.6～6132.6 yuan(RMB).The input–output ratio of artificial pollination was 1.42～2.84∶1.Artificial pollination especially artificial cross pollination not only makes higher fruit set percentage but also makes better average single fruit weight,percentage of commercial fruit and yield as well as economic benefits.