| 软枣猕猴桃叶片矿质元素变化与果实品质的关系 |
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| 引用本文： | 魏丽红,翟秋喜.软枣猕猴桃叶片矿质元素变化与果实品质的关系[J].北方园艺,2019(2):60-64. |
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| 作者姓名： | 魏丽红 翟秋喜 |
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| 作者单位： | 辽宁农业职业技术学院食品药品系,辽宁营口,115009;辽宁农业职业技术学院食品药品系,辽宁营口,115009 |
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| 基金项目： | 辽宁农业职业技术学院2017年度一般科研资助项目(辽农职科合字(2017第20号));辽宁农业职业技术学院2017年度重点科研资助项目(2017第09号);辽宁农业职业技术学院2014年度一般科研资助项目 |
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| 摘 要： | 以"桓优一号"猕猴桃为试材,测定了营养枝与结果枝叶片及果实中的N、P、K、Ca、Mg等元素含量及生理指标,研究了叶片中矿质元素变化与果实品质的关系,以期为果实发育中营养的合理补充提供科学依据。结果表明:2种叶片中全氮含量均明显下降;全磷含量在营养枝叶片先大幅增加后大幅下降,在结果枝叶片先增加后减少再增加。2种叶片全钾含量不断下降。全钙、全镁含量逐步增加;随着果实发育,维生素C含量逐渐下降,果实鲜质量与其干物质量逐步增加。总酸含量先稳步增加后持续下降,总固形物含量不断增加。全氮含量总体呈增加趋势,全磷、全钾含量先增加后减少,全钙含量下降趋势明显,全镁含量变化不大。营养枝与结果枝叶片中全氮、全钾与果实营养指标之间存在显著或极显著的负相关关系。营养枝与结果枝中矿质营养元素主要用于果实的建成,在一定范围内,要保证果实发育期叶片有充足的矿质元素含量,以利于提高果实的大小和品质。在果实总固形物含量方面,不同时期叶片中N、P、K元素与果实总固形物含量的相关性不同。2种叶片中Ca含量与果实鲜质量、果实干物质量及果实总固形物含量呈正相关,说明适量提高叶片中矿质元素的含量可提高果实总固形物含量,促进果实成熟。
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| 关 键 词： | 软枣猕猴桃 矿质元素 果实品质 |
Relationships Between Leaf Mineral Elements Changes and Fruit Quality of Actinidia arguta |
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| WEI Lihong,ZHAI Qiuxi.Relationships Between Leaf Mineral Elements Changes and Fruit Quality of Actinidia arguta[J].Northern Horticulture,2019(2):60-64. |
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| Authors: | WEI Lihong ZHAI Qiuxi |
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| Institution: | (Food and Drug Department,Liaoning Agricultural College,Yingkou,Liaoning 115009) |
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| Abstract: | ‘Huan you 1’kiwifruit was used as tested materials,the contents of N,P,K,Ca,Mg,other elements and physiological indexes in fruits and in leaves of nutrient branch and fruiting branch were determined.The relationship between mineral elements in leaves and fruit quality was studied in order to provide scientific basis for nutritional supplement during fruit development.The results showed that the total nitrogen content in both leaves decreased significantly,and the total phosphorus content in the leaves of nutrient branches increased sharply at first and then decreased sharply,while that in the leaves of fruiting branches increased first,then decreased and then increased.The total potassium contents of the two leaves decreased.The contents of total calcium and magnesium increased gradually,while the content of vitamin C decreased gradually with fruit development,and the fresh and dry weight of fruit increased gradually.The total acid content first increased steadily and then decreased continuously,and the total solid content increased.Total nitrogen content showed an increasing trend,total phosphorus and potassium content increased first and then decreased,total calcium content decreased significantly,total magnesium content changed little.There were significant or extremely significant negative correlations between total nitrogen,total potassium and nutrient indicators of fruits in the leaves of nutrient branches and fruiting branches.Mineral nutrients in nutrient branches and fruiting branches are mainly used for fruit construction.In a certain range,it was necessary to ensure that there were sufficient mineral elements in leaves during fruit development,so as to improve the size and quality of fruit.In terms of total solids content,the correlations between N,P,K and total solids content were different in different periods in the leaves.Ca content in two kinds of leaves was positively correlated with fresh fruit quality,dry matter content and total solids content,which indicated that increasing mineral element content in leaves could increase total solids content and promote fruit ripening. |
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| Keywords: | Actinidia arguta mineral elements fruit quality |
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