作 者：
沙守峰;李俊才;王家珍;蔡忠民;李宏军;姜晓艳
关键词：
‘早金酥’梨;果实;钙肥;锌肥;糖;有机酸;糖酸比
摘 要：
【目的】探讨钙和锌营养对梨果实糖分、有机酸组分及糖酸比的影响。【方法】以‘早金酥’梨为试材,在生长季节叶面喷施钙肥和锌肥,用高效液相色谱法测定成熟果实主要糖分和有机酸组分含量。【结果】叶面喷施优钙肥,果实果糖和总糖含量极显著增加,葡萄糖、蔗糖和草酸含量显著增加,苹果酸、柠檬酸和总有机酸含量极显著降低,糖酸比极显著增加;喷施氯化钙,果实总糖含量极显著增加,果糖和葡萄糖含量显著增加,苹果酸、莽草酸、柠檬酸和总有机酸含量极显著降低,草酸含量显著降低,糖酸比极显著增加。喷施硫酸锌,果实果糖含量极显著增加,葡萄糖含量极显著降低,奎尼酸含量显著增加。相关分析表明,叶面喷钙提高了梨果果糖、葡萄糖含量,降低了柠檬酸含量,进而提高果实总糖含量减少总酸含量,提高‘早金酥’梨果实品质。【结论】在‘早金酥’梨树生长季节叶面喷施钙肥,果实总糖含量极显著增加,总酸含量极显著降低,糖酸比明显增加,提升果实品质效果明显。
译 名：
Effect of foliar application of calcium and zinc fertilizers on sugar and acid content of 'Zaojinsu' pear fruits
作 者：
SHA Shoufeng;LI Juncai;WANG Jiazhen;CAI Zhongmin;LI Hongjun;JIANG Xiaoyan;Liaoning Institute of Pomology;
单 位：
SHA Shoufeng%LI Juncai%WANG Jiazhen%CAI Zhongmin%LI Hongjun%JIANG Xiaoyan%Liaoning Institute of Pomology
关键词：
'Zaojinsu' pear;;Fruit;;Calcium fertilizer;;Zinc fertilizer;;Sugar content;;Organic acid content;;Ratio of sugar to acid
摘 要：
【Objective】To investigate the influence of mineral nutrition on the contents of sugar,organic acid and their ratio in'Zaojinsu'pear fruits.【Methods】The high-performance liquid chromatography was used to measure the sugar and the organic acid contents in ripe fruits of'Zaojinsu'pears(Pyrus bretschneideri Rehd.) that had received foliar application of Ca or Zn fertilizers during the growing season.【Results】It was observed that foliar application of chelate calcium very significantly increased the fructose and total sugar contents in the fruit,and it significantly increased the glucose,sucrose and oxalic acid contents as well as the ratio of sugar to acid in the fruit,while it very significantly decreased the malic acid,citric acid and total organic acid contents in the fruit.Calcium chloride was found to very significantly increase the total sugar content and the ratio of sugar to acid in the fruit,and it significantly increased the fructose and glucose contents in the fruit,while it very significantly decreased the malic acid,shikimic acid,citric acid and total organic acid contents in the fruit,and it significantly decreased oxalic acid content in the fruit.Zinc sulfate was found to very significantly increase the fructose content and very significantly decreased glucose content in the fruit,while it significantly increased the quinic acid content in the fruit.The results of correlation analysis further showed that calcium treatment increased fructose and glucose contents,reduced citric acid content in fruits,thus increasing total sugar content and reducing total acid content,improving the quality of'Zaojinsu'pear fruits.【Conclusion】For sake of foliar application of calcium fertilizer on'Zaojinsu'during the growing season,the total sugar content very significantly increased and the total organic acid content very significantly decreased in the fruit,and it significantly increased the ratio of sugar to acid in the fruit,thus improving the quality of'Zaojinsu'pear fruits.
