不同时期摘袋对‘富士’苹果着色的影响

The Effect of Different Packing Season on the Coloration of 'Fuji' Apple

通过测定不同时期摘袋‘富士’苹果果实着色生理指标的变化规律，探讨对其着色的影响。结果表明：盛花后130d（熊岳9月20日左右）开始到月底（9月30日）摘袋，果实着色快，且随着摘袋时间的推迟，着色有加快趋势。摘内袋后10～15d，果皮花青苷含量迅速上升且着色快，但果实含糖量尚未达到理想值，辽宁熊岳地区10月20～25日左右采收，可溶性固形物可达16％～17％，此时采收果实品质风味较佳。

Several crucial factors related with the biosynthesis of anthocyanin in fruit development phase of ＇Fuji＇ apple, and the activity of amylase and sucrose were analysed to probe into the physiological index of the coloring time of apple. The conclusions could be made as follows：It had significant influence to the coloration of ＇Red Fuji＇ apple fruit for removing bags at different development stage. Removing bags after 130 days of full bloom （September 7-17 to September 30）, fruit was colored fast. Removing bags too early or too lately, the coloration was slow. 6 days after interior bags were removed, fruit skin anthocyanidin content was increased fast. 10- 15 days later, fruit skin was fresh red, smooth and with a very good appearance. But the fruit SSC had not reached an idea value. Picking fruit around October 20-25 in Xiongyue, fruit SSC could reached 16%-17% and the flavor was better also.