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不同砧木椪柑氮素营养的研究
庄伊美; 王仁玑; 陈丽璇; 许文宝; 谢志南;   
1.福建省亚热带植物研究所;2.福建省亚热带植物研究所 厦门 361006;3.厦门 361006
摘要:
研究结果表明,不同砧穗组合椪柑的氮素营养存在差异。半矮化枳砧椪柑,无论是枳砧根系或是枳砧椪柑叶片,在年周期中(或一定阶段),其全氮、硝态氮含量和硝酸还原酶活性多处于较高水平,且呈现出高于两种乔砧(椪柑、福桔)椪柑组合。试验表明,枳砧根系的较高氮素水平,促进了接穗椪柑叶片氮素水平的提高,作者认为,半矮化枳砧椪柑植株氮素营养的较高水平与碳索同化水平相一致,是其早结高产的一个重要因素。
关键词:  椪柑  砧木  氮素营养  
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