| 镉胁迫对3个品种圭亚那柱花草镉积累和矿质养分吸收的影响 |
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| 引用本文： | 黄耿磊,黄冬芬,刘国道,郇恒福,虞道耿.镉胁迫对3个品种圭亚那柱花草镉积累和矿质养分吸收的影响[J].热带作物学报,2011,32(4):598-602. |
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| 作者姓名： | 黄耿磊 黄冬芬 刘国道 郇恒福 虞道耿 |
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| 作者单位： | 1. 海南大学农学院, 海南儋州571737;中国热带农业科学院热带作物品种资源研究所农业部热带作物种质资源利用重点开放实验室 海南儋州571737
2. 中国热带农业科学院热带作物品种资源研究所农业部热带作物种质资源利用重点开放实验室 海南儋州571737 |
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| 基金项目： | 973计划项目(No.2007CB108903); 现代农业产业技术体系建设专项资金; 中央级公益性科研院所基本科研业务费专项资金(No.PZS080,No.PZS038); 海南省自然科学基金(No.808176); 公益性行业(农业)科研专项(No.200903026-1)资助 |
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| 摘 要： | 利用不同浓度Cd2+溶液对3个品种圭亚那柱花草Stylosanthes guianensis(Aublet)Swartz]进行不同程度的胁迫处理,以研究镉胁迫对柱花草生长、镉积累和矿质养分吸收的影响。结果表明:在镉胁迫下,3个品种圭亚那柱花草生长均受到抑制,TPRC2001-18(S.guianensis TPRC2001-18)受抑制作用最强,其次是热研10号(S.guianensis cv.Reyan No.10),而热研2号(S.guianensis cv.Reyan No.2)受抑制最弱。在镉胁迫下3个品种柱花草地上部和地下部镉含量均显著增加;镉浓度在1.0～5.0 mg/kg时,3个品种柱花草地上部镉含量从高到低的顺序为热研2号>热研10号>TPRC2001-18。镉胁迫能干扰柱花草对氮(N)、磷(P)、钾(K)养分的吸收。
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| 关 键 词： | 镉胁迫 圭亚那柱花草 不同品种 矿质养分 |
Effects of Cadmium Stress on Cadmium Accumulation and Mineral Nutrients Uptake in Three Varieties of Stylosanthes guianensis |
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| HUANG Genglei,HUANG Dongfen,LIU Guodao,HUAN Hengfu and YU Daogeng.Effects of Cadmium Stress on Cadmium Accumulation and Mineral Nutrients Uptake in Three Varieties of Stylosanthes guianensis[J].Chinese Journal of Tropical Crops,2011,32(4):598-602. |
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| Authors: | HUANG Genglei HUANG Dongfen LIU Guodao HUAN Hengfu and YU Daogeng |
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| Institution: | HUANG Genglei1,2,HUANG Dongfen2,LIU Guodao2,HUAN Hengfu2,YU Daogeng2 1 College of Agronomy,Hainan University,Danzhou,Hainan 571737,China 2 Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crops Germplasm Resources Utilization,Ministry of Agriculture,China |
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| Abstract: | The effects of cadmium stress on the growth,the contents of Cd2+ and mineral nutrients absorption of three cultivars of styloStylosanthes guianensis(Aublet)Swartz]were investigated under treatments with different Cd2+ concentrations.The results showed that with the increase of Cd2+ concentration,the growth of stylo was restrained.S.guianensis TPRC2001-18 was influenced the most,and the the second was S.guianensis cv.Reyan No.10,S.guianensis cv.Reyan No.2 was influenced the least;The Cd2+ contents of the th... |
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| Keywords: | Cadmium stress Stylosanthes guianensis(Aubl )Sw Stylo varieties Mineral nutrients |
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