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首页> 外文期刊>Acta Physiologiae Plantarum >Exogenous gibberellic acid increases the fruit weight of ‘Comte de Paris’ pineapple by enlarging flesh cells without negative effects on fruit quality
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Exogenous gibberellic acid increases the fruit weight of ‘Comte de Paris’ pineapple by enlarging flesh cells without negative effects on fruit quality

机译：外源赤霉素通过增加果肉细胞而增加了“ Comte de Paris”菠萝的果实重量，而对果实品质没有负面影响

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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 (GA3) on ‘Comte de Paris’ pineapple production and quality, pineapple fruits were sprayed with GA3 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 GA3 significantly increased fruit weight, and the most effective concentration was 50 mg l−1 GA3, which increased the flesh weight by 20.3% compared to the control. Although treatment with GA3 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 GA3 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 GA3 treatment was not due to the increase of cell number but a result of the increase of cell area in the fruit flesh.
机译：在中国大陆，最受欢迎的菠萝品种是“ Comte de Paris”。赤霉素酸已被广泛用于增强各种物种的果实生长。为了评估赤霉素（GA 3 ）对'Comte de Paris'菠萝的产量和品质的影响，将菠萝中的GA 3 以5、20，开花后0和15天（DAF）分别为50或100 mg l -1 。每15天从0到60 DAF（成熟度）采样水果，以进行流式细胞术分析和组织学观察。结果表明，三种浓度最高的GA 3 处理均显着增加了果实重量，最有效的浓度为50 mg l −1 GA 3 < / sub>，与对照相比，其肉重增加了20.3％。尽管用GA 3 处理对总可溶性固形物和果汁pH值影响很小，但它增加了维生素C含量。尽管流式细胞仪分析表明50 mg l −1 GA 3 处理对S期细胞的数量只产生了很小的影响，但组织学观察表明，果实的增加GA 3 处理的果肉体积和果肉重量不是由于细胞数量的增加，而是果肉细胞面积增加的结果。

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