前言秋白梨是我国梨树重点产区辽宁省西部地区的主要栽培与发展品种,年产量达一亿斤以上。秋白梨果实风味、品质、色泽均较好,耐贮耐运,深受国内外市场的欢迎,但因大小年结果较严重,常影响当地梨果产量的提高与稳定。国内外不少研究报道指出:采取相应农业 Introduction Qiubai pear is a key producing area in Liaoning Province in western China’s major cultivated and developed varieties, the annual output of more than one billion pounds. Qiubai pear fruit flavor, quality, color are good, resistant to storage and transportation, welcomed by domestic and foreign markets, but due to the size of the annual results are more serious, often affecting the local pear yield increase and stability. Many studies at home and abroad have pointed out: to take appropriate agriculture