高桩素和普洛马林对苹果果形的影响刘凤之魏长存程存刚（中国农科院果树研究所１２５１０近年来，我国苹果产量大幅度增加，但其品质较差。红富士和新红星苹果，普遍存在果形指数低，果形不端正等缺陷，因而其高档优质果率低，市场竞争力差。据此，我们于１９９７年在辽宁... Effect of Pipropionine and Promazin on Apple Fruit Shape Liu Fengzhi, Wei Changcun, Cheng Cunang (Institute of Pomology, Chinese Academy of Agricultural Sciences, 12510) In recent years, apple production in China has increased substantially but its quality is poor. There is a low fruit shape index, fruit shape and other defects, so its high-quality low-quality fruit, poor market competitiveness. Accordingly, we in 1997 in Liaoning ...