Variation of Sugar, Acid and Vitamin C Contents in Fruit Development in Different Types of Kiwifruit  

不同类型猕猴桃果实发育过程中糖、酸和Vc含量的动态变化(英文)

作　　者：葛翠莲[1] 刘科鹏[1] 曲雪艳[1] 徐小彪[1] 黄春辉[1] 

机构地区：[1]江西农业大学园艺系,江西南昌330045

出　　处：《Agricultural Science & Technology》2013年第12期1772-1774,1778,共4页农业科学与技术（英文版）

摘　　要：The variation of sugar, acid and vitamin C contents in fruits of red flesh kiwifruit （Actinidia chinensis） ＂Hongyang＂ and green fresh kiwifruit （A. deliciosa） ＇Jinkui＇ were investigated during fruit development. The results showed that the to- tal sugar soluble contents of ＂Hongyang＇ and ＇Jinkui＂ during fruit development ex- isted different variations. With the upward trend of ＇Hongyang＇ fruit development, 95 days after full bloom （DAFB）, the total soluble sugar accumulation was relatively slow, and then rose rapidly until harvest with the maximum content （6.87%）. While ＇Jinkui＇ fruit showed a fluctuant process, rising in 50 DAFB, then declining, then rising rapidly and decreasing slightly right before harvest. The variation of fruit titrat- able acid between them was more consistent, which was increased and then de- creased. The only difference was that the titratable acid content of ＇Jinkui＇ fruit de- creased slowly from the late of fruit development to fruit ripening, similar to the maximum value, but that of ＇Hongyang＇ fruit decreased rapidly in the late. Titrat- able acid contents of them in the maturity were 1.08% and 1.20%, respectively. The trends of sugar acid ratio for ＇Hongyang＇ and ＇Jinkui＇ fruit were quite different. ＇Hongyang＇ fruit increased slowly and then rapidly; ＇Jinkui＇ changed from decreas- ing to increasing, followed by slight decreasing in mature stage. In addition, the two kiwifruit varieties had a similar change trend of Vc content during fruit development, which changed from rapid increasing to declining, followed by slight growing in the harvest. The changing tendency of ＇Jinkui＇ fruit was later than that of ＇Hengyang＇.以红肉猕猴桃‘红阳’和绿肉猕猴桃‘金魁’为试材研究了果实发育过程中糖、酸和Vc含量的动态变化。结果表明,果实发育过程中‘红阳’和‘金魁’猕猴桃可溶性总糖含量有着不同的变化规律。‘红阳’猕猴桃糖含量在整个果实发育过程中呈现上升的趋势,只是前期(盛花后95天之前)上升比较平缓,后期较迅速,至果实成熟期达最大含量(6.87%)。而‘金魁’猕猴桃糖含量呈现上下波动趋势:前期上升,至盛花后50天下降,之后又上升,临近果实成熟时略有下降。果实发育过程中,两种类型猕猴桃的可滴定酸含量变化一致,即前期增加后期下降。唯一不同的是,‘金魁’猕猴桃酸含量下降趋势比较缓慢,而‘红阳’猕猴桃则比较迅速。成熟果实中‘金魁’猕猴桃酸含量为1.08%,‘红阳’猕猴桃为1.20%。两者果实中糖酸比的变化趋势也有所不同。在‘红阳’猕猴桃中前期上升缓慢后期较快;‘金魁’猕猴桃中先下降后上升,临近成熟时又略有下降。此外,两种类型猕猴桃的Vc含量变化趋势相似,即果实发育前期快速上升后期下降,在果实成熟期又稍有回升。但‘金魁’猕猴桃的Vc含量变化节点稍晚于‘红阳’猕猴桃。

关 键 词：KIWIFRUIT Fruit development SUGAR ACID VC VARIATION 

分 类 号：S663.4[农业科学—果树学]