Abstract: Using fruit-type balsam pear（Momordica charantia L.） Apple bitter gourd as material, the experiment of planting density was set up to analyze its effect on early yield, total yield, early commercial melon rate and full harvest commercial melon rate of Apple bitter gourd. The results showed that the early yield and total yield were closely related to the planting density. When the row spacing was 2.5 m, the early yield of the treatment with 0.62 m plant spacing was the highest, and there was no significant difference in the early commercial melon rate among different treatments; the total yield of the treatment with 0.72 m plant spacing was the highest, but after excluding non-commercial melons, the treatment with 0.80 m plant spacing had the highest yield of commercial melons, indicating that different planting densities of Apple bitter gourd had great effects on the early yield, total yield and the rate of commercial melons in the middle and later stages.

Key words: Apple bitter gourd, planting density, early yield, total yield, commercial melon rate