短枝叶片在果实发育的许多方面都是重要的,它们是成年苹果树休眠芽萌发的第一批叶,并且在花后不久构成了树冠的主要部分。Hansen指出。新叶为果实生长提供光合产物要比自贮藏养分中移出的碳水化合物多得多。在花前或花期摘除短枝叶片降低了座果率。Dennis通过苹果主产区50多个元帅苹果园的三年调查发现,在花前三周和花期内,总太阳辐射强度与座果率呈显著相关。短枝 Spur blades are important in many aspects of fruit development, they are the first leaves to bud dormancy in adult apple trees and form the main part of the crown shortly after flowering. Hansen points out. New leaves provide much more photosynthate for fruit growth than carbohydrates that are removed from stored nutrients. Removal of short leaves in pre-flowering or flowering reduced fruit set rate. Three years of surveys by more than 50 Marshal Apple Orchards in the main producing area of ​​Dennis Dennis found that the total solar radiation intensity was significantly correlated with the fruit set rate during the first three weeks and during flowering. Spur