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热带作物学报 2013, 34(9)： 1730-1736Chinese Journal of TYopical Crops不同品简换趣5发育衽程中_Kx Ca. Na. Mg元素变化规律王 萍，刘立云，李 艳，陈思婷，董志国，唐龙祥中国热带农业科学院椰子研究所，海南文昌571339摘 要 对3个不同品种揶子液体胚乳中K. Ca、Na. Mg等4种大就矿质碎养元索含业的动态变化规律，以 及不同果龄及不同品种间的元索含呈进行比较和相关性分析卩结果表明.揶子果实在发育期间.随若果实的发 令椰子液体胚乳中的K、C&含址呈逐渐下降、Na含欣呈逐渐增加、Mg含址呈逐渐F降之后冋升的趋势。所側 4种元素含就，KCaMgNao不同元索含笊在不同品种间的比较结果不同，K含诫中，本地高种小黄椰文椰 3号；Ca含就中.文榔3号小黄椰本地高种；Na含就中，小黄椰本地高种文椰3号；Mg含址在笫7串果 实中，本地高种小黄椰文揶3号，其余果串墨界不显？L 4种大址矿质元素含忙间的相关性分析结果丧明.K 含凤与Ca. Mg含址呈正相关关系，与Na呈显著负相关关系；Ca含屋与Na呈负相关关系，与Mg呈极显著止 相关关系；Nh含乩与Mg呈负相关关系；不同品种间各元素的郴关呈一致性，但品种间的显著性有所不同。 关律词 椰子；裁体胚乳；果实；生长发育；矿质元索 中图分类号S667.4文献标识码AChanges of K，Ca, Na, Mg in Coconut LiquidEndosperm During Fruit Development ofThree Coconut CultivarsWANG Ping, LIU Liyun, LI Yan, CHEN Siting, DONG Zhiguo, TANG LongxiangCoconut Research Instilule, Chinese Acafiemy of Tropical Agriculture Science. Wfnchang, Hainan 571339, ChinaAbstract The variation of K, Ca, Na, Mg content in coconut liquid endosperm during the development of three coconut cullivarn was studied The results showed that, the content of K and Ca reduced gradually, the content of Na rose gradually, nnd the content of Mg reduced firstly dnd then rose with fniit development in coconut liquid endosperm The content of the four elements were in the order KCaMgNa The content of the four elements in different cultivars were different. The content of K was in the order IxkhI TaUXiaohuangWenye No.3; That for Ca was Wenye No.3Xiaohuang Local Tall; That for Na was Xiaohuang Local Tall Wenye No.3; Thai for Mg was extremely signiGcant only among the 7th fruit with the order Local Tall Xiaohuang Wenye No3 The correlation analysis indicated that the content of 4 kinds of major elements were significantly positively correlated between K and Ca. K and Mg, Ca and Mg; and there were significantly negatively correlated between K and Na, Ca and Na, Na and Mg ThEre were the same results between two cultivars, but there were some difference in the comparison of significanceKey words Coconut; Liquid endosperm; Fruit; Development; Mineral elementdoi 10.3969/j.issn.l 000-2561.2013.09.018椰子(Cocos nncifera L)属棕舸科(Palmaceae) 椰子属(Cocos) t是热带地区主要木本油料作物， 也是食品能源作物叫其胚乳分为固体胚乳和液体 胚乳，固体胚乳椰肉可用于深加工，生产椰子糖、 椰子汁、椰子油等系列产品叫而液体胚乳可作为 夏天清爽的天然饮料已越来越受到人们的欢迎。 椰果不同发育时期，其揶果乞组成成分不一样。到 目前为止，国外对椰果发育研究仅限于某个时期的 椰果组分及椰果液体胚乳营养价值的研究国内关于椰果发育规律与不同成熟度的研究也有报道叫 但对于椰子发育过程中椰子液体胚乳中大虽矿质元 索含It动态变化规律的研究却未见报道。矿质营养水平与果树生氏发育密切相关叫研 究果实中矿质营养元索以及它们之间的关系对了解 果实品质形成机理及调控具有重要的理论意义叫 然而椰子作为我国亜要热带果树却研究报道很少。 木研究以3个不同类別的椰子品种为材料，研究不 同发育吋期的椰子果实中液体胚乳的大量矿质元素收稿日期2013-04-27修回日期2013-07-29基金項目公益件行业科研Q项(No. 20090326)；海南術自热科学菇金顶目(No.808181 )。作者简介王 萍(1981年一)，女，助理研究员；研究方向：热带油料9棕柵作物营养与牛理、E-mail： wangpingfly2003l63.sm。
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