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首页> 外文期刊>International journal of fruit science >Calcium and Potassium Foliar Sprays Affect Fruit Skin Color, Quality Attributes, and Mineral Nutrient Concentrations of 'Red Delicious' Apples
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Calcium and Potassium Foliar Sprays Affect Fruit Skin Color, Quality Attributes, and Mineral Nutrient Concentrations of 'Red Delicious' Apples

机译：钙和钾叶面喷雾影响果皮颜色，质量属性和矿物质营养浓度的“红色美味”苹果

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摘要

This study was conducted to evaluate the influences of foliar spray of potassium (K), calcium (Ca), and their combination on the fruit red skin color and quality attributes of 'Red Delicious' apple under conditions of south central Iran with warm anddry summer, where low and high temperature differences are low. The trees were sprayed five times using 5 g L'1 calcium chloride (CaCI2) at 3-week intervals starting from 3 weeks after full bloom and three times (at 9, 12, and 15 weeks after full bloom)using 2.5 g L-1 K sources [potassium chloride (KCI), potassium sulfate (K2S04), and potassium nitrate (KN03)] during two growing seasons in 2013 and 2014. Anthocyanin, some physicochemical attributes, and fruit mineral concentrations were measured at harvest. Results showed that spraying with K, CaCI2, and their combinations significantly increased fruit weight, sugar and anthocyanin concentrations, firmness, and K uptake. A combined foliar application of CaCI2 and each of the K sources was more effective on the improvement of fruit color, firmness, fruit K and Ca uptake, and K/Ca ratio as compared to the case when either K or Ca was applied alone.
机译：进行了该研究以评估叶面喷雾钾（K），钙（CA）及其组合对“红美味”苹果在伊朗南部中部夏季的果实红色肤色和质量属性的影响，温暖的Anddry Summer ，低温和高温差异低。在3周的间隔以3周开始，从3周开始，从盛开后3周（在盛开后9,12和15周）开始，将树木喷洒五次。在2013年和2014年的两种生长季节，1 k磷源[氯化钾（KCI），硫酸钾（K2S04）和硝酸钾（KN03）]。在收获时测量花青素，一些物理化学属性和水果矿物浓度。结果表明，用K，CaCl 2和它们的组合喷涂，显着提高了果重，糖和花青素浓度，坚定和k摄取。与单独施用K或Ca的情况相比，CaCi2和每种K源的CaCi2和每种K源的应用更有效。

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