毛花猕猴桃‘赣猕6号’果实糖、酸及抗坏血酸的动态变化（英文）

Dynamic Variation in Sugar,Acid,and ASA Contents of ‘Ganmi 6' Kiwifruit(Actinidia eriantha Benth) Fruits

[目的]探究毛花猕猴桃‘赣猕6号’果实在发育过程中可溶性糖、可滴定酸、抗坏血酸(AsA)的变化规律。[方法]从盛花后20d至盛花后170 d每隔15 d随机采集‘赣猕6号’果实用于研究。[结果]结果表明:"赣猕6号"在果实发育过程中,可溶性总糖含量呈现上升趋势,前期(盛花后95d之前)保持相对平稳,而后开始上升至最大值(10.35%);可滴定酸含量呈上升-下降-上升变化趋势,采收期时含量为1.10%;从糖酸比值来看,盛花后95d之前下降,之后上升至最大值(9.39);AsA含量变化曲线呈双"S"形,先迅速上升之后下降,在采收前期略上升后又下降。[结论]该研究可为探索调控果实营养成分的科学栽培方法提供一定的理论依据。

[Objective] The variation of sugar, acid and AsA contents in fruits of ‘Ganmi 6＇ kiwifruit （Actinidia eriantha Benth） were investigated during fruit develop- ment. [Method] Kiwi fruits were randomly taken as materials every 15 days since 20 days after full bloom （DAFB） to 170 DAFB until in mature stage. [Result] The results showed that during fruit development of ‘Ganmi 6＇, the total sugar soluble contents had a rising trend with relatively stable at 95 DAFB, then rose until har- vest with the maximum content （10.35%）. The titratable acid content showed a trend of increasing, then declining, then increase to the harvest content （1.10%）. From the sugar acid ratio, we can knew it decreased in 95 DAFB, then up to the max （9.38）. The changes of AsA contents showed double ‘S＇ shape, decreased af- ter the first increased rapidly, slightly increased and then decreased in the early harvest. [Conclusion] It provided a theoretical basis for scientific cultivation methods to explore the nutrients regulation.