一、促进生根用20～150毫克/升的吲哚乙酸钾盐水溶液浸泡梨树插条、2500～5000毫克/升的吲哚丁酸、50%乙醇溶液快蘸硬材插条、8000毫克/升吲哚丁酸溶液蘸梨树。二、梨果脱萼在梨树初花期至盛花期之间用200～500毫克/升的多效唑水溶液或500～1000毫克/升的乙烯利水溶液将喷湿全部花朵或花蕾,可使梨果实的最大果和最小果 First, promote rooting With 20 ~ 150 mg / l of indole acetic acid potassium salt solution soaking pear cuttings, 2500 ~ 5000 mg / l indole butyric acid, 50% ethanol solution quickly dip hardwood cuttings, 8000 mg / Or indole butyric acid solution dip pear tree. Second, pears off calyx Pear blossoms in early flowering to flowering with 200 ~ 500 mg / L of paclobutrazol water solution or 500 ~ 1000 mg / liter of ethephon water solution will spray wet all the flowers or buds, pear fruit The largest fruit and the smallest fruit