| 叶面喷施抗坏血酸钙对水培生菜生长和采后品质的影响 |
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| 引用本文： | 何鑫,刘贤金,孙晓明,梁颖,卢海燕,丁莹.叶面喷施抗坏血酸钙对水培生菜生长和采后品质的影响[J].北京工商大学学报(自然科学版),2017,35(5):78-83. |
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| 作者姓名： | 何鑫 刘贤金 孙晓明 梁颖 卢海燕 丁莹 |
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| 作者单位： | 江苏省农业科学院 食品质量安全检测研究所/江苏省食品质量安全重点实验室-省部共建国家重点实验室培育基地,江苏 南京210014,江苏省农业科学院 食品质量安全检测研究所/江苏省食品质量安全重点实验室-省部共建国家重点实验室培育基地,江苏 南京210014,江苏省农业科学院 食品质量安全检测研究所/江苏省食品质量安全重点实验室-省部共建国家重点实验室培育基地,江苏 南京210014,江苏省农业科学院 食品质量安全检测研究所/江苏省食品质量安全重点实验室-省部共建国家重点实验室培育基地,江苏 南京210014,江苏省农业科学院 食品质量安全检测研究所/江苏省食品质量安全重点实验室-省部共建国家重点实验室培育基地,江苏 南京210014,江苏省农业科学院 食品质量安全检测研究所/江苏省食品质量安全重点实验室-省部共建国家重点实验室培育基地,江苏 南京210014 |
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| 基金项目： | 江苏省自主创新项目(CX(15)1016)。 |
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| 摘 要： | 考察了叶面喷施1,3,5mg/L抗坏血酸钙对水培生菜矿物质吸收及采后抗坏血酸、亚硝酸盐质量分数的影响。结果表明,叶面喷施抗坏血酸钙初期可显著增加生菜叶片中抗坏血酸质量分数,但随着栽培时间的延长各处理组与对照组的差异不显著。随着处理时间的延长,可溶性蛋白、叶绿素、硝酸盐质量分数升高。叶面喷施抗坏血酸钙可增加叶片数、叶面积、生菜地上部分含水量,影响生菜对矿物质元素的吸收。随着抗坏血酸钙处理浓度升高,钾质量分数逐渐升高,钙质量分数均有不同程度的升高,氮、锌质量分数逐渐下降。栽培期喷施抗坏血酸钙可降低采后抗坏血酸及亚硝酸盐的产生。叶面喷施适当浓度抗坏血酸钙可强化水培生菜钙元素和部分微量元素质量分数,增加营养品质,延长货架期。
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| 关 键 词： | 抗坏血酸钙 水培生菜 采后品质 矿物质元素 |
| 收稿时间： | 2017/3/27 0:00:00 |
Effect of Foliage Spraying Ascorbic Acid Calcium on Dynamic Post-Harvest Growth and Post-Harvest Metabolic in Hydroponic Lettuce |
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| Institution: | Institute of Food Safety and Quality/Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China,Institute of Food Safety and Quality/Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China,Institute of Food Safety and Quality/Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China,Institute of Food Safety and Quality/Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China,Institute of Food Safety and Quality/Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China and Institute of Food Safety and Quality/Key Laboratory of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China |
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| Abstract: | In this study, lettuces were treated with different concentrations ascorbic acid calcium (1,3, and 5mg/L). Effects of ascorbic acid calcium on the absorption of mineral matters, vitamin C contents, and nitrite contents were investigated. The results showed that ascorbic acid calcium significantly increased vitamin C content of lettuce leaves during the initial stage. With the extension of processing time, contents of soluble protein, chlorophyll, and nitrate steadily increased. Spraying ascorbic acid calcium increased leaf number, leaf area, and plant moisture content, and affected plant mineral elements absorption. With the increasing concentration of ascorbic acid calcium, the potassium and calcium contents of lettuce edible parts increased while the nitrogen and zinc contents gradually declined. After harvest, vitamin C and nitrite contents grew slowly with the ascorbic acid calcium treatment. Ascorbic acid calcium spray could increase the calcium and some microelements contents of lettuces to increase its nutritional quality and prolong the shelf life. |
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| Keywords: | ascorbic acid calcium hydroponic lettuce post-harvest quality mineral element |
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