CPPU对猕猴桃果实发育过程中糖、酸含量变化的影响  

Influence of CPPU on Kiwifruit Sugar Content and Titratable Acidity During Fruit Development

作　　者：方金豹[1] 黄宏文[2] 李绍华[3] 

机构地区：[1]中国农业科学院郑州果树研究所,河南郑州450009 [2]中国科学院武汉植物研究所,湖北武汉430071 [3]中国农业大学园艺学院,北京100094

出　　处：《果树学报》2002年第4期235-239,共5页Journal of Fruit Science

基　　金：中国农业科学院院长基金项目。

摘　　要：以秦美猕猴桃为试材,对果实生长发育过程中糖、酸含量的变化进行了观察.初步认定果实的生长曲线为双S型,果实重量的增加主要发生在花后30～60 d.花后20 d用CPPU处理幼果,生长很快得到促进,但对第1II期的生长没有影响.在果实快速生长期(第1期),可溶性糖含量下降,淀粉、可滴定酸累积缓慢.CPPU处理不改变糖、酸含量的变化趋势,但提高糖的水平.实验结果表明,果实中碳水化合物水平是形成双S曲线的主要原因.Qinmei was used to study the changes of sugar content and titratabe acidity(TA) during the process of fruit development. Preliminary results showed that the curve of fruit fresh weight growth was a double sigmoid. The fruit rapid growth stage fell into 30-60 d (stage I) after full bloom (AFB) . The fruit growth at stage I was stimulated after the application of CP-PU on 20 d AFB, but not at stage III. The content of fructose, glucose and sucrose decreased, while the starch and TA accumulated slowly at stage I. The CPPU treatment did not affect the changing pattern of sugar content and TA ,but increased the sugar level. Evidence was presented that the level of carbohydrate would be a major factor determining the double sigmoidcurve

关 键 词：CPPU 糖 酸 含量变化 猕猴桃 果实发育 细胞分裂素 

分 类 号：S663.4[农业科学—果树学]