4个石榴品种发育期叶片主要矿质元素含量动态变化

摘要

The mineral element contents of N,P,K,Ca,Mg,Fe,Cu,Zn and Mn in leaves and their correlations were analyzed with four major pomegranate cultivars in China.The results showed that the contents of N,P,Cu and Zn showed the tendency of decreasing at first,ascending later and then decreasing;the K content decreased at first and then increasing;the Ca content increased gradually;the Mg and Mn contents increased at first and then decreased;the Fe content showed the tendency of increasing firstly,then decreased,finally increased.The contents of N,P and Ca were the highest in'Huaibei Hongpitian'leaves;the K,Mg and Zn contents were the highest in'Sichuan Dahongtian'leaves;'Daqingpitian'had the highest contents of Fe and Mn;the Cu content was the highest in'Jingpitian'leaves.The correlation analysis results indicated that there were synergy effects between N,P and K in pomegranate leaves,and Ca,Mg,Fe,Cu,Zn and Mn had different antagonistic effects on N,P and K.%本研究以我国4个主栽石榴品种为试材,对其叶片中N、P、K、Ca、Mg、Fe、Cu、Zn、Mn 9种矿质元素含量的变化及相关性进行了分析.结果表明,不同石榴品种发育期叶片中N、P、Cu、Zn呈先降后升再降的变化趋势,K先降低后升高,Ca逐渐升高,Mg和Mn均先升高后降低,Fe呈先升后降再升的变化趋势;‘淮北红皮甜’N、P、Ca含量最高,‘四川大红甜’K、Mg、Zn含量最高,‘大青皮甜’Fe、Mn含量最高,‘净皮甜’Cu含量最高;相关分析表明,供试品种N、P、K之间存在增效作用,Ca、Mg、Fe、Zn、Mn对N、P、K存在不同程度的拮抗作用.