18号饲用南瓜为单性花,雄雌异花同株植物,通常由昆虫传粉。但由于遇阴雨天或培育种子的需要,往往需人工辅助授粉。但有关最佳授粉时间的报道还未见到,笔者在克山县西河乡南瓜试验田内对此进行了试验观察,现将结果报告如下。观察方法与结果1.受精时间于82年7月19日下午3时用纸袋套雄雌现蕾各6个,20日早6时 Feed pumpkin No. 18 is a hermaphrodite flower, male and female with the same plants, usually pollinated by insects. However, due to the need to cultivate seedlings in cloudy or rainy days, artificial pollination is often required. However, the report about the best pollination time has not been seen. The author conducted a test observation in the Pumpkin Experimental Field in Xihe Township, Keshan County. The results are reported as follows. Observation methods and results 1. Fertilization time at 3 o’clock on the July 19, at 82 o’clock in the paper bag with 6 sets of male and female buds, as early as 6:00 on the 20th