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首页> 外文期刊>Scientia horticulturae >Improving the performance of calcium-containing spray formulations to limit the incidence of bitter pit in apple (Malus x domestica Borkh.).
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Improving the performance of calcium-containing spray formulations to limit the incidence of bitter pit in apple (Malus x domestica Borkh.).

机译：改善含钙喷雾剂的性能，以限制苹果（苹果）和苦瓜（Borkh）中苦点的发生。

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摘要

Laboratory and field experiments were carried out with apples (Malus x domestica Borkh.) cv. 'Golden Reinders', to assess the efficacy of sodium salt of carboxymethyl ether of cellulose (0.5%, CMC) as an adjuvant for Ca spray formulations containing either Ca-chloride or Ca-propionate as active ingredient (120 or 250 mM Ca). This additive significantly increased the retention of Ca-containing solutions by the apple skin and prolonged the process of drying of the solution at room temperature. Four days after immersion of apples in 0.5% CMC plus CaCl2 or Ca-propionate solutions (120 and 250 mM Ca) significant Ca increases were recorded in the peel and cortex of treated fruits. Application to apple trees of in-season sprays containing 250 mM CaCl2 plus 0.05% Tween 20, Ca-propionate (120 and 250 mM Ca) plus 0.5% CMC or 250 mM CaCl2 plus 0.5% CMC had no impact on fruit yield and quality, but significantly limited the rate of bitter pit incidence during the following 3-month cold-storage period. Evidence is provided that addition of appropriate adjuvants to Ca sprays can favour the distribution of Ca into the apple fruit and helps to reduce the incidence of Ca-related disorders over the postharvest cold-storage period.
机译：使用苹果（Malus x Borkh。）cv进行了实验室和田间试验。 “ Golden Reinders”，用于评估纤维素羧甲基醚钠盐（0.5％，CMC）作为佐剂的功效，该喷雾剂含有氯化钙或丙酸钙作为活性成分（120或250 mM Ca）。这种添加剂显着提高了苹果皮中含钙溶液的保留能力，并延长了室温下溶液的干燥过程。将苹果浸入0.5％CMC加CaCl 2 或丙酸钙溶液（120和250 mM Ca）的四天后，处理过的果实的果皮和皮层中钙的含量显着增加。含有250 mM CaCl 2 加上0.05％Tween 20，丙酸钙（120和250 mM Ca）加上0.5％CMC或250 mM CaCl 2 < / sub>加0.5％CMC对水果的产量和品质没有影响，但是显着限制了接下来的3个月冷藏期间苦坑发病率。有证据表明，在钙喷雾剂中添加适当的佐剂可以促进钙在苹果果实中的分布，并有助于减少贮藏后冷藏期钙相关疾病的发生率。

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