热带作物学报2009，Vol.30Issue(9)：1252-1255,4.
喷施外源CPPU和GA对菠萝果实品质的影响
Effect of Exogenous CPPU and GA Treatments on Fruit Quality of Pineapple
摘要
Abstract
Pineapple (A nanas comosus L.) is an important tropical fruit. To evaluate the effect of N-(2-chloro-4-pyridyl)-N'-phenylurea(CPPU) and gibberellic acid(GA_3) on pineapple(Comte de Paris) quality and production, pineapple fruits were sprayed with CPPU and GA_3 at the rates of 5, 10, 20, 50 mg/L at days 20 and 35 respectively after flowering, and with water as the control. The results showed that 20 mg/L CPPU and 50 mg/L GA_3 treatments increased the fresh weight of pineapple fruits significantly, increasing by 9.1% and 14.9% respectively as against the control. On the other hand, these two treatments also promoted total soluble sugar accumulation, and the 50 mg/L GA_3 treatment increased total soluble sugar content by 36.9%, obviously higher than the control; GA_3 treatment also promoted the amount of total titratable acidity, which resulted in the decrease of the pH of fruit juice. However, no significant difference was observed in the content of total soluble solid and Vitamin C from the pineapple fruits treated. This indicates that treatment of pineapple fruits with GA_3 at 50 mg/L can increase weight per fruit significantly and have little influence on fruit quality.关键词
菠萝/CPPU/GA_3/果实品质/果实重量Key words
pineapple/CPPU/GA3/fruit quality/fruit weight.分类
农业科技引用本文复制引用
李运合,孙光明..喷施外源CPPU和GA对菠萝果实品质的影响[J].热带作物学报,2009,30(9):1252-1255,4.基金项目
农业部公益性行业科研专项经费(No.3-41).中国热带农业科学院南亚所非营利性科研机构改革专项启动费(No.sscrjqd200803)资助. （No.3-41）
