在红富士苹果花蕾期、盛花期和落花后三个时期喷施乙烯利和乙烯利配合 NAA,结果表明 ,在盛花期取得明显效果 ,尤以乙烯利 40 0 mg· L- 1和 60 0 mg· L- 1及乙烯利 80 0 mg· L - 1与 NAA10 mg· L - 1配合两组处理效果最好 ,百花序坐果数达到 46-99个 ,单用乙烯利 80 0 mg· L- 1疏除过量 ,百花序做果仅 2 5个 ,配合 NAA10 mg·L- 1可降低乙烯利的疏除效应 ,使得效果更为稳妥。 The application of ethephon and ethephon with NAA during the budding, flowering and post-abortion stages of Red Fuji apple showed that the effect was obvious at full flowering stage, especially ethephon 40 0 ​​mg · L -1 and 60 0 mg · L-1 and ethephon 80 0 mg · L - 1 and NAA 10 mg · L - 1 were the best, the number of flowers was 46-99 and the content of ethephon was 80 0 mg · L- 1 sparsely. Except for the excess, only 25 flower basal organs were used, and NAA10 mg · L- 1 could reduce ethephon sparse effect, making the effect more secure.