文献类型： 外文期刊

作者： Li, Yun-He ¹ ; Wu, Yong-Jie ³ ; Wu, Bei ⁴ ; Zou, Ming-Hong ¹ ; Zhang, Zhi ¹ ; Sun, Guang-Ming ¹ ;

作者机构： 1.Chinese Acad Trop Agr Sci, S Subtrop Crop Res Inst, Zhanjiang 524091, Peoples R China

2.Natl Ctr Important Trop Crops Engn & Technol Res, Haikou 571101, Peoples R China

3.Hebei Acad Agr & Forestry Sci, Changli Inst Pomol, Changli Town 066600, Qinhuangdao, Peoples R China

4.Guangzhou Univ, Sch Life Sci, Guangzhou 510006, Guangdong, Peoples R China

关键词： vitamin C: 50-81-7;gibberellic acid: 77-06-5;total soluble solids;fruit quality;cell number;flowering;fruit weight;fruit production;cell enlargement;cell area;pH factor;fruit volume;flesh weight;flesh cell

期刊名称：ACTA PHYSIOLOGIAE PLANTARUM （ 影响因子：2.354； 五年影响因子：2.711 ）

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收录情况： SCI

摘要： In mainland China, the most popular pineapple cultivar is 'Comte de Paris'. Gibberellic acids have been widely applied to enhance fruit growth in various species. To evaluate the effect of gibberellic acid (GA(3)) on 'Comte de Paris' pineapple production and quality, pineapple fruits were sprayed with GA(3) at concentrations of 5, 20, 50, or 100 mg l(-1) at both 0 and 15 days after flowering (DAF). Fruits were sampled every 15 days from 0 to 60 DAF (maturation) for flow cytometric analysis and histological observation. The results showed that the treatments with the three highest concentrations of GA(3) significantly increased fruit weight, and the most effective concentration was 50 mg l(-1) GA(3), which increased the flesh weight by 20.3% compared to the control. Although treatment with GA(3) had little effect on the total soluble solids and fruit juice pH, it increased the vitamin C content. Although flow cytometric analysis showed that the 50 mg l(-1) GA(3) treatment had only a slight impact on the number of S phase cells, histological observations indicated that the increase of fruit volume and flesh weight under this GA(3) treatment was not due to the increase of cell number but a result of the increase of cell area in the fruit flesh.