不同采收期对红富士苹果贮藏品质的影响

Effect of Harvest Date on Storage Quality of Fuji Apple

研究了不同采收期对红富士苹果贮藏品质的影响。分别于盛花期后168d、171d、174d、177d、181d和183d采果，冷藏中定期测定几种指标的变化。结果表明，采收期不影响呼吸峰出现的时间，但影响峰值高低；早采的果实失水严重；晚采的果实硬度下降快且腐烂率高；适期采收的果实可溶性固形物、有机酸及vC含量变化幅度小，失水及腐烂少。用于长期贮藏的洛川红富士最佳采收期在盛花期后171～l77d，采收时硬度≥8．4kg／cm^2，可溶忡固形物含量≥13．8％，

This paper studied the storage qualities of Fuji apple with different harvest date. The apples were picked at 168,171,174,177,180 and 183 d after full bloom（DAFB） , then stored in low temperature and several indexes were measured at intervals. The result showed that harvest date influenced the value of climacteric peak but not the advent time; the water loss was high in fruits picked early; the firmness decreased quick and rotted ratio was high in fruits picked late; the contents of soluble solid ,organic acid and vC changed slow ,and it also had a low water loss and rotted ratio in fruits picked at proper maturity . The Fuji apple in Luochuan for long-storage should be harvest 171DAFB- 177DAFB ,and the firmness ≥8.4 kg/cm^2 and SSC≥13.8% at harvest time.