| 硒对烤烟生长、化学指标及矿质营养元素含量的影响 |
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| 引用本文： | 韩丹,熊双莲,许自成,涂书新,邵惠芳,黄五星,郝三辉.硒对烤烟生长、化学指标及矿质营养元素含量的影响[J].核农学报,2017,31(10). |
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| 作者姓名： | 韩丹 熊双莲 许自成 涂书新 邵惠芳 黄五星 郝三辉 |
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| 作者单位： | 1. 河南农业大学烟草学院,河南郑州,450002;2. 华中农业大学资源与环境学院;华中农业大学微量元素研究中心,湖北武汉430070 |
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| 基金项目： | 中国烟草总公司河南省公司重点科技攻关项目，农业部公益性行业科研专项 |
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| 摘 要： | 为探讨不同浓度的硒(Se)对植物生长、化学指标及矿质营养元素含量的影响,本研究以云烟87为试验材料,采用盆栽试验方法,研究了不同硒浓度对烤烟生长、化学指标及烤烟根、茎、叶中矿质元素N、P、K、Ca、Mg、Mn、Zn、Cu累积的影响。结果表明,土壤施硒(亚硒酸钠)4.4 mg·kg-1时,烟叶中烟碱、蛋白和还原糖等含量处于最适范围,根、茎、叶中矿质元素N、P、K、Ca、Mg、Mn、Zn、Cu的含量达到最大值。低硒处理(Se≤4.4 mg·kg-1)显著提高了烤烟各部位对矿质元素的吸收,尤其对N、K、Ca、Mg、Mn的影响最为显著,从而促进了烤烟的生长,烟叶化学成分更加协调;而高硒处理(Se≥11.1 mg·kg-1)则降低了烤烟各部位对矿质元素的吸收,尤其对N、P、K的影响最显著,从而抑制了烤烟的生长。土壤中不同硒浓度通过调控植物对矿质元素的吸收进而影响植物的生长和化学指标,该研究结果为指导富硒烟叶的生产提供了理论依据。
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| 关 键 词： | 硒 烤烟 生长 化学指标 矿质营养元素 |
Effects of Selenium on Growth,Chemical Index and Mineral Nutrition Contents of Flue-cured Tobacco |
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| HAN Dan,XIONG Shuanglian,XU Zicheng,TU Shuxin,SHAO Huifang,HUANG Wuxing,HAO Sanhui.Effects of Selenium on Growth,Chemical Index and Mineral Nutrition Contents of Flue-cured Tobacco[J].Acta Agriculturae Nucleatae Sinica,2017,31(10). |
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| Authors: | HAN Dan XIONG Shuanglian XU Zicheng TU Shuxin SHAO Huifang HUANG Wuxing HAO Sanhui |
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| Abstract: | In order to explore effect of different concentrations of selenium (Se) on plant growth,chemical index and mineral nutrients,the growth,chemical index and contents of mineral nutrition (N,P,K,Ca,Mg,Mn,Zn,and Cu) in roots,stems and leaves were determined in Yunyan 87 by pot culture.The results showed that the contents of mineral nutrition (N,P,K,Ca,Mg,Mn,Zn,Cu) in roots,stems and leaves of flue-cured tobacco reached the maximum value at 4.4 mg· kg-1 of Se treatment,and the contents of Nicotine,reducing sugar and protein in leaves of flue-cured tobacco were within the optimum range.Selenium at low levels (Se≤4.4 mg·kg-1) stimulated the growth of flue-cured tobacco by enhancing the uptake of mineral nutrition,especially for N,K,Ca,Mg and Mn,and ultimately promoted the growth of flue-cured tobacco as well as the chemical composition was more harmonious.However,high Se levels (Se ≥ 11.1 mg· kg-1) depressed the absorption of mineral nutrition,especially for N,P and K,and ultimately inhibited the growth of flue-cured tobacco.Therefore,different Se concentration in soil affected the growth and chemical index of flue-cured tobacco by regulating the absorption of mineral elements in plants.This research provides a theoretical basis for the guidance of Se-rich agricultural production. |
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| Keywords: | selenium flue cured tobacco growth chemical index mineral nutrient element |
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