柠檬柚果实发育过程中金属营养元素含量变化及活性氧代谢研究  

Physiological Research on Changes of Metal Elements During the Fruits Development of Lemon Shaddock

作　　者：陈丽璇[1,2] 刘福平[1,2] 蔡晓东[1,2] 陈淳[1,2] 郭莺[1,2] 

机构地区：[1]福建省亚热带植物研究所,福建厦门361006 [2]福建省亚热带植物生理生化重点公共实验室,福建厦门361000

出　　处：《园艺学报》2010年第12期1893-1900,共8页Acta Horticulturae Sinica

基　　金：福建省科技重大项目(99-I-1);福建省自然科学基金项目(B0610016)

摘　　要：研究柠檬柚（Citruslimonum Grandis Osbeck,柠檬与麻豆文旦柚杂交的新品种）果实发育过程中K、Ca、Mg、Zn、Cu、Mn、Fe7种金属营养元素的含量与分布、吸收规律及其与活性氧代谢的相关性。结果表明：（1）4—5月、6—9月和10—11月分别是果皮迅速生长期、果肉迅速生长期和果实转色成熟期。（2）果皮和果肉中K、Ca、Mg、Zn、Mn、Fe的含量都随着果实的发育总体呈递减规律,但元素的吸收总量却相反。K、Zn、Fe以果肉居多,Ca、Mg、Mn则主要分布在果皮。K含量位居7元素之首。Cu在幼果期的含量是其它月份的5~6倍,且果皮果肉中的含量相当。（3）K、Ca、Mg、Zn、Mn的吸收量集中在7—9月,Cu和Fe的吸收高峰则在11月果实转色期（39.83%和45.95%）。（4）果肉中7种金属营养元素间相关性显著率大于果皮。（5）与活性氧代谢相关性较显著的是Fe元素,其余依次是K、Zn、Cu、Ca、Mg,Mn最低。During the fruits development of a new cultivar Taiwan Lemon shaddock（Citrus limonum Grandis Osbeck）,relationship between contents,distribution,absorption regularity of seven metal elements and metabolism of active oxygen were investigated. The results were as follows.（1）The main peel growth period,flesh growth period and flesh colour-changed period were from April to May,June to September and October to November respectively（.2）The contents of K,Ca,Mg,Zn,Mn and Fe in peel and flesh decreased with the fruit growth,but the total adsorption quality was opposite. K content was highest of seven. K,Zn and Fe primary in flesh,while Ca,Mg and Mn were dominant in peel. The highest contentration of Cu was observed in young fruits and the contents of Cu in peel and flesh were almost the same.（3）Absorption centralization of K,Ca,Mg,Zn and Mn were from July to September,however,the highest adsorption of Cu and Fe was in November（39.83% and 45.95% respectively）（.4）Correlation of seven metals in flesh was more significant than that in peel.（5）There was significant correlation between Fe and metabolism of active oxygen,then were K,Zn,Cu,Ca and Mg,and the lastest was Mn.

关 键 词：柠檬柚 果实发育过程 金属营养元素 吸收规律 活性氧代谢 

分 类 号：S666.3[农业科学—果树学]