| 处理下彩叶草体内元素含量分布及相关性分析 |
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| 引用本文： | 袁菊红,胡绵好.处理下彩叶草体内元素含量分布及相关性分析[J].浙江农业学报,2016,28(12):2098. |
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| 作者姓名： | 袁菊红 胡绵好 |
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| 作者单位： | 1.江西财经大学 环境与植物科学研究所,江西 南昌 330032; 2.江西财经大学 鄱阳湖生态经济研究院,江西 南昌 330032 |
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| 基金项目： | 国家自然科学基金项目(21407069,21367013),江西省自然基金项目(20142BAB203024,20151BAB203034); 江西财经大学优秀学术人才支持计划项目(K00292025); 国家留学基金项目(201509805005) |
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| 摘 要： | 以彩叶草为试材,采用盆栽试验研究了不同浓度Se(0、0.2、0.5、1.0、1.5、2.0、2.5 mg·L-1)处理下彩叶草各器官中矿质元素(K、Ca、Na、Mg、Fe、Mn、Cu和Zn)和重金属元素(Cr、Cd、As、Pb和Se)含量分布及其相关性。结果表明:Se处理明显改变了根茎叶中矿质元素和重金属的含量及其在植物体内的分布,K和Ca总量在各器官中的顺序是茎>叶>根,Fe和Mn为根>叶>茎,Zn为叶>茎>根;低浓度Se(≤0.5 mg·kg-1)处理,Na和Mg总量在各器官中的顺序分别是根>茎>叶和叶>根>茎;高浓度Se(≥1.0 mg·kg-1)处理,Na和Mg元素的顺序则分别为茎>根>叶和叶>茎>根。重金属元素Cr和Cd总量在各器官中的顺序是根>茎>叶;Pb总量在各器官中的顺序是根>叶>茎。相关性分析表明:(1)彩叶草根中Se含量与As、Pb含量呈显著正相关(P <0.05或0.01),与K、Ca、Na、Mg、Fe、Mn、Cu、Zn、Cr、Cd含量的相关性未达到显著水平,13种元素中呈正相关与负相关元素个数相当且基本呈一个复杂的网状结构;(2)茎中Se含量与K、Ca、Na、Mg、Fe、Mn、Cu、Zn、Cr、Cd、As、Pb含量的相关性未达到显著水平,13种元素中正相关元素个数多于负相关元素个数且呈2个简单网状结构;(3)叶中Se含量与Ca含量呈显著负相关(P <0.05),与K、Na、Mg、Fe、Mn、Cu、Zn、Cr、Cd含量的相关性未达显著水平,13种元素中正相关元素个数多于负相关元素个数且呈2个简单直线结构。
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| 关 键 词： | 彩叶草 硒处理 元素分布 相关性分析 |
| 收稿时间： | 2016-03-30 |
Elements distribution and their correlation analysis in Coleus blumei Benth under selenium treatments |
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| YUAN Ju-hong,HU Mian-hao.Elements distribution and their correlation analysis in Coleus blumei Benth under selenium treatments[J].Acta Agriculturae Zhejiangensis,2016,28(12):2098. |
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| Authors: | YUAN Ju-hong HU Mian-hao |
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| Institution: | 1. Institute of Environment and Plant Science, Jiangxi University of Finance and Economics, Nanchang 330032, China;
2. Institute of Poyang Lake Eco-economics, Jiangxi University of Finance and Economics, Nanchang 330032, China |
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| Abstract: | In order to investigate the distribution of mineral elements and heavy metal elements contents and their correlation in the various organs of Coleus blumei Benth with different concentrations of Se (0, 0.2, 0.5, 1.0, 1.5, 2.0, 2.5 mg·L-1), a pot experiment was conducted. The results showed that the content and distribution of mineral elements and heavy metal contents in the roots, stems and leaves of C. blumei Benth changed significantly with different concentrations of Se, the sequence of K and Ca contents was in stems>leaves>roots, Fe and Mn contents was in roots>leaves>stems, Zn content was in leaves>stems>roots. The sequence of Na and Mg contents with low concentration of Se (≤ 0.5 mg·kg-1) treatments was in roots>stems>leaves and leaves>roots>stems, respectively, but the sequence of Na and Mg contents with high concentration of Se (≥ 1.0 mg·kg-1) treatments was in stems>roots>leaves and leaves>stems>roots, respectively. The sequence of Cr and Cd contents was in roots>stems>leaves, Pb content was in roots>leaves>stems. Correlation analysis showed that: (1) there were significant positive correlations between Se content and contents of As and Pb, but were no significant correlations between Se content and contents of K, Ca, Na, Mg, Fe, Mn, Cu, Zn, Cr and Cd in the roots of C. blumei Benth. For 13 kinds of elements, the element pairs with positive correlations were no more than those with negative correlations and showed a complex network structure. (2) There were no significant correlations between Se content and contents of K, Ca, Na, Mg, Fe, Mn, Cu, Zn, Cr, Cd, As and Pb in the stems. For 13 kinds of elements, the element pairs with positive correlations were more than those with negative correlations and showed two simple network structures. (3) There were significant negative correlations between Se and Ca contents, but were no significant correlations between Se content and contents of K, Na, Mg, Fe, Mn, Cu, Zn, Cr and Cd in the leaves. For 13 kinds of elements, the element pairs with positive correlations were more than those with negative correlations and showed two simple linear structures. |
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| Keywords: | Coleus blumei Benth selenium treatments elements distribution correlation analysis |
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