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针对日本砂梨座果率高、极丰产,疏花疏果是其一项重要技术,于1987～1988年对幸水和新世纪梨进行了适量留果指标的探讨。以上年冬剪前后留下的花芽为基础,按照不同品种的花芽开花座果后所形成的不同类型果台的比例,设4种不同留果量处理。结果看出,(l)单位果台的产量随着密果的增
Aiming at the high fruit rate, extremely high yield and thinning fruit of sand pear in Japan, it is one of the most important technologies. During 1987 ~ 1988, the appropriate amount of fruit retention index was studied in Yushui and New Century pear. Based on the flower buds left before and after the winter and winter scissors, four different fruit yield treatments were set according to the proportions of different types of fruit pens formed after flower buds of different varieties. As a result, (1) the fruit yield per unit increased with the increase in cotyledons