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首页> 外文期刊>Revista Brasileira de Fruticultura >ETHEPHON AND CALCIUM CHLORIDE, A COMBINATION THAT IMPROVES SKIN COLOR OF ‘RUBI’ TABLE GRAPE
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ETHEPHON AND CALCIUM CHLORIDE, A COMBINATION THAT IMPROVES SKIN COLOR OF ‘RUBI’ TABLE GRAPE

机译：乙烯利和氯化钙，可改善“ RUBI”茶几色的皮肤颜色

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SCAVRONI, Joseane et al. ETHEPHON AND CALCIUM CHLORIDE, A COMBINATION THAT IMPROVES SKIN COLOR OF ‘RUBI’ TABLE GRAPE. Rev. Bras. Frutic. [online]. 2018, vol.40, n.1, e-777. ?Epub?Feb?15, 2018. ISSN 0100-2945.? http://dx.doi.org/10.1590/0100-29452018777. ‘Rubi’ table grape has wide acceptance of the consumer market due to its affordable price and attractive color as a function of the accumulation of anthocyanins. However, environmental conditions do not always favor the suitable accumulation of these pigments, resulting in commercial devaluation and nutritional depreciation of fruits. Thus, the present study aimed to investigate the effect of application of different ethephon concentrations, associated or not with CaCl2 application, on the skin color and quality of ‘Rubi’ grape berries. First, specific traits of berries treated with 0, 200, 400, 600, 800 mg L-1 ethephon associated with 1.5% CaCl2 solution were evaluated and pH, titratable acidity (TA), soluble solids (SS), berry firmness, total and reducing soluble sugars, and anthocyanin and flavonol levels were analyzed. This first stage of evaluation revealed no changes in total sugar levels, firmness, SS, TA, SS/TA ratio, and flavonol levels, while changes were detected regarding reducing sugar and anthocyanin levels. Thus, in the second stage, the following variables were evaluated: SS, TA, reducing sugar levels, anthocyanin levels, phenylalanine ammonia lyase (PAL) and glutathione S-transferase (GST) activity of ‘Rubi’ grape berries treated with 0, 200, 400, 600, 800 mg L-1 ethephon, associated or not with 1.5% CaCl2 solution. The results of the present study indicate that ethephon associated with CaCl2 can contribute to improve the post-harvest quality of ‘Rubi’ grape, since this association increased the accumulation of anthocyanins due to the higher activity of PAL and GST, related to biosynthesis and storage of antocyanins, respectively, and increased the levels of reducing sugars (at low ethephon concentrations), not changing other quality aspects. Therefore, a single ethephon application from 200 mg L-1 associated with the application of 1.5% CaCl2 at the final ripening stage, when bunches present from 30 to 50% skin color coverage, was sufficient to produce satisfactory results regarding skin color improvement of ‘Rubi’ grape berries.
机译：SCAVRONI，Joseane等。乙烯和氯化钙，一种可改善“ RUBI”桌形皮肤颜色的组合。胸罩牧师果然[线上]。 2018年第40卷第1期e-777。 《 Epub》，2018年2月15日。ISSN0100-2945。 http://dx.doi.org/10.1590/0100-29452018777。 “ Rubi”食用葡萄因其价格合理的价格和诱人的颜色（取决于花青素的积累）而在消费市场上得到了广泛认可。但是，环境条件并不总是有利于这些色素的适当积累，从而导致水果的商业贬值和营养价值下降。因此，本研究旨在研究施用不同浓度的乙烯利（无论是否与CaCl2结合）对“鲁比”葡萄浆果的肤色和品质的影响。首先，评估用0、200、400、600、800 mg L-1乙烯利和1.5％CaCl2溶液处理的浆果的特定性状，并评估pH，可滴定酸度（TA），可溶性固体（SS），浆果硬度，总和还原可溶性糖，并分析了花青素和黄酮醇的含量。评估的第一阶段显示总糖水平，硬度，SS，TA，SS / TA比值和黄酮醇水平没有变化，而在降低糖和花色素苷水平方面却发现了变化。因此，在第二阶段，对以下变量进行了评估：SS，TA，还原糖水平，花色苷水平，苯丙氨酸氨裂合酶（PAL）和谷胱甘肽S-转移酶（GST）活性用0、200处理的'Rubi'葡萄浆果，400、600、800 mg L-1乙烯利，是否与1.5％CaCl2溶液结合。本研究的结果表明，与CaCl2缔合的乙烯利可有助于提高'Rubi'葡萄的采后质量，因为由于PAL和GST的较高活性，这种缔合增加了花色苷的积累，与生物合成和储存有关分别增加花青素的含量，并增加了还原糖的含量（在较低的乙烯利浓度下），而没有改变其他质量方面。因此，当一束乙烯利从200 mg L-1开始施用，并在最终成熟阶段施用1.5％CaCl2时，当一束簇出现30％至50％的皮肤颜色覆盖时，就足以产生令人满意的有关改善皮肤颜色的结果。 Rubi'葡萄浆果。

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