当前位置: 首页 > 文章 > 铁胁迫下硒对水稻养分吸收的影响 东北农业大学学报 2011,42 (8) 98-101
Position: Home > Articles > Effect of Se on nutrient uptake of rice under Fe stress Journal of Northeast Agricultural University 2011,42 (8) 98-101

铁胁迫下硒对水稻养分吸收的影响

作  者:
彭显龙;刘元英;罗盛国
单  位:
东北农业大学资源与环境学院
关键词:
寒地;水稻;硒;养分吸收;铁胁迫
摘  要:
通过水培法,在铁胁迫下,研究硒对寒地水稻养分吸收和干物质积累的影响。结果表明,与正常培养液培养(Fe0+Se0)相比,加铁胁迫(Fe+Se0)显著提高了植株体内铁的含量,物质积累降低并不显著,但是抑制了水稻对氮、磷和锰的吸收,氮、磷和锰的积累量分别降低了7.8%、26.7%和74.0%,均达到显著水平(P<0.05);铁胁迫下,培养液中补充适量的硒,显著提高了植株硒、磷和锌的含量,氮、磷和锌的积累量分别提高了17.4%、52.8%和83.7%,均达到了显著水平(P<0.05)。以上结果表明,铁胁迫能够抑制水稻对养分的吸收,硒改善了水稻氮、磷和锌的营养状况,提高了水稻抵抗铁胁迫的能力。
译  名:
Effect of Se on nutrient uptake of rice under Fe stress
作  者:
PENG Xianlong,LIU Yuanying,LUO Shengguo(College of Resources and Environmental Sciences,Northeast Agricultural University,Harbin 150030,China)
关键词:
cold area;rice;selenium;nutrient uptake;Fe stress
摘  要:
Effect of selenium(Se) on nutrient and dry matter accumulation of rice were studied in cold area of Northeastern China.Results of water culture experiment showed that compared with control(Fe0+Se0),Fe stress(Fe+Se0) significantly increased Fe content of rice plant,decreased P and Mn content of rice plant,and inhibited N,P and Mn uptake,but did not clearly decrease dry weight.Accumulation of N,P and Mn were significantly decreased by 7.8%,26.7% and 74.0%,respectively under Fe stress.Appropriate amount of Se addition clearly increased Se,P and Zn content of rice plants,at the same time,the accumulation of N,P and Zn was increased by 17.4%,52.8% and 83.7%,respectively under Fe stress.The results suggested that Fe stress inhibited nutrient uptake,Se could improve nutrient accumulation and increase resistance ability to Fe stress.

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