水分管理对水稻镉吸收的影响
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摘要
以晚稻品种玉针香和湘晚籼12号为供试材料,研究了3种水分灌溉方式(W1,长期淹水灌溉;W2,湿润灌溉;W3,阶段性湿润灌溉)对水稻糙米镉含量的影响。结果表明,在水稻生长的3个关键时期(分蘖期、灌浆期、成熟期),各部位镉含量、富集系数均以W3处理最高,W1处理最低;玉针香糙米镉含量W1处理分别比W2、W3处理低56.52%和66.67%,且W1处理与W3处理间存在显著差异;湘晚籼12号糙米镉含量W1处理分别比W2、W3处理低65.22%和52.94%,但各处理间差异不显著。可见,长期淹水灌溉是一项能够有效降低糙米镉含量的农艺措施。
Using late rice varieties Yuzhenxiang and Xiangwanxian 12 as materials, a pot experiment was conducted to study the effects of three different water irrigation modes(W1, long-term flood irrigation; W2, wet irrigation; W3, staged humid irrigation) on cadmium content in brown rice. The results showed that the cadmium content and enrichment coefficient of all parts were the highest in W3 treatment and the lowest in W1 treatment in the three growth periods. For Yuzhenxiang, the cadmium content in brown rice of W1 treatment was 56.52% and 66.67%% lower than that of W2 treatment and W3 treatment, respectively, moreover, there was a significant difference between W1 treatment and W3 treatment. For Xiangwanxian 12, the cadmium content in brown rice of W1 treatment was 65.22% and 52.94% lower than that of W2 treatment and W3 treatment, respectively, but the difference between treatments was not significant. Therefore, the long-term flooding irrigation is an agronomic measure that could safely and effectively reduce the cadmium content in brown rice.
Using late rice varieties Yuzhenxiang and Xiangwanxian 12 as materials, a pot experiment was conducted to study the effects of three different water irrigation modes(W1, long-term flood irrigation; W2, wet irrigation; W3, staged humid irrigation) on cadmium content in brown rice. The results showed that the cadmium content and enrichment coefficient of all parts were the highest in W3 treatment and the lowest in W1 treatment in the three growth periods. For Yuzhenxiang, the cadmium content in brown rice of W1 treatment was 56.52% and 66.67%% lower than that of W2 treatment and W3 treatment, respectively, moreover, there was a significant difference between W1 treatment and W3 treatment. For Xiangwanxian 12, the cadmium content in brown rice of W1 treatment was 65.22% and 52.94% lower than that of W2 treatment and W3 treatment, respectively, but the difference between treatments was not significant. Therefore, the long-term flooding irrigation is an agronomic measure that could safely and effectively reduce the cadmium content in brown rice.
引文
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[12]杨永杰,杨雪芹,张彩霞,等.干旱胁迫下NO对水稻日本晴叶片生理特性的影响[J].中国水稻科学,2015,29(1):65-72.
[13]陈江民,杨永杰,黄奇娜,等.持续淹水对水稻镉吸收的影响及其调控机理[J].中国农业科学,2017,50(17):3 300-3 310.
[14]傅志强,黄璜,朱华武,等.不同灌溉方式对水稻生长及产量的影响[J].作物研究,2011,25(4):299-303.
[15]刘昭兵,纪雄辉,官迪,等.镉胁迫条件下淹水时间对水稻吸收累积镉的影响[J].生态与农村环境学报,2017,33(12):1 125-1 131.
[16]李园星露,叶长城,刘玉玲,等.生物炭耦合水分管理对稻田土壤As-Cd生物有效性及稻米累积的影响[J].农业环境科学学报,2018,37(4):696-704.
[17]尹必文,吴文革,魏安季,等.不同水分管理对杂交水稻产量及其构成的影响[J].杂交水稻,2011,26(6):37-39.
[18]纪雄辉,梁永超,鲁艳红,等.污染稻田水分管理对水稻吸收积累镉的影响及其作用机理[J].生态学报,2007,27(9):3 930-3 939.
[19]李鹏.水分管理对不同积累特性水稻镉吸收转运的影响研究[D].南京:南京农业大学,2011.
[20]刘文菊,张西科,张福锁.根表铁氧化物和缺铁根分泌物对水稻吸收镉的影响[J].土壤学报,1999,36(4):463-469
[21]傅友强,于晓莉,杨旭健,等.干湿交替诱导水稻根表铁膜形成的基因表达谱分析[J].中国水稻科学,2017,31(2):133-148.
[22] HUANG J, WANG S, LIN J, et al. Dynamics of cadmium concentration in contaminated rice paddy soils with submerging time[J]. Paddy Water Environ, 2013, 11(1):483-491.
[2]环境保护部,国土资源部.全国土壤污染状况调查公报[EB/OL].(2014-04-17)[2017-03-22].
[3] KOBAYASHI E, SUWAZONO Y, DOCHI M, et al. Influence of consumption of cadmium-polluted rice or Jinzu river water on occurrence of renal tubular dysfunction and/or Itai-itai disease[J]. Biol Trace Elem Res, 2009, 127(3):257-268.
[4] MOULIS J M, THEVENOD F. New perspectives in cadmium toxicity:an introduction[J]. Biometals, 2010, 23(5):763-768.
[5] YU H, WANG J, FANG W, et al. Cadmium accumulation in different rice cultivars and screening for pollution-safe cultivars of rice[J]. Sci Total Environ, 2006, 370(2/3):302-309.
[6] SHI J, LI L, PAN G. Variation of grain Cd and Zn concentrations of110 hybrid rice cultivars grown in a low-Cd paddy soil[J]. J Environ Sci(China), 2009, 21(2):168-172.
[7] SARWAR N, SAIFULLAH, MALHI S S, et al. Role of mineral nutrition in minimizing cadmium accumulation by plants[J]. J Sci Food Agric, 2010, 90(6):925-937.
[8] YANG Y J, XIONG J, CHEN R. Excessive nitrate enhances cadmium(Cd)uptake by up-regulating the expression of OsIRT1 in rice(Oryza sativa)[J]. Environ Exp Bot, 2016, 122:141-149.
[9] YANG Y J, CHEN R, FU G, et al. Phosphate deprivation decreases cadmium(Cd)uptake and reduces Cd tolerance by increasing iron(Fe)uptake and inhibiting phytochelatins synthesis in rice(Oryza sativa)[J]. Acta Physiol Plant, 2016, 38:28
[10] WEI S, LI Y, ZHOU Q, SRIVASTAVA M, et al. Effect of fertilizer amendments on phytoremediation of Cd-contaminated soil by a newly discovered hyperaccumulator Solanum nigrum L[J]. J Hazard Mater,2010, 176(1/3):269-273.
[11]杨永杰,张彩霞,宋建,等.花期干旱胁迫对籼稻近等基因系水分和光合生理的影响[J].中国农业科学,2013,46(7):1 481-1 491.
[12]杨永杰,杨雪芹,张彩霞,等.干旱胁迫下NO对水稻日本晴叶片生理特性的影响[J].中国水稻科学,2015,29(1):65-72.
[13]陈江民,杨永杰,黄奇娜,等.持续淹水对水稻镉吸收的影响及其调控机理[J].中国农业科学,2017,50(17):3 300-3 310.
[14]傅志强,黄璜,朱华武,等.不同灌溉方式对水稻生长及产量的影响[J].作物研究,2011,25(4):299-303.
[15]刘昭兵,纪雄辉,官迪,等.镉胁迫条件下淹水时间对水稻吸收累积镉的影响[J].生态与农村环境学报,2017,33(12):1 125-1 131.
[16]李园星露,叶长城,刘玉玲,等.生物炭耦合水分管理对稻田土壤As-Cd生物有效性及稻米累积的影响[J].农业环境科学学报,2018,37(4):696-704.
[17]尹必文,吴文革,魏安季,等.不同水分管理对杂交水稻产量及其构成的影响[J].杂交水稻,2011,26(6):37-39.
[18]纪雄辉,梁永超,鲁艳红,等.污染稻田水分管理对水稻吸收积累镉的影响及其作用机理[J].生态学报,2007,27(9):3 930-3 939.
[19]李鹏.水分管理对不同积累特性水稻镉吸收转运的影响研究[D].南京:南京农业大学,2011.
[20]刘文菊,张西科,张福锁.根表铁氧化物和缺铁根分泌物对水稻吸收镉的影响[J].土壤学报,1999,36(4):463-469
[21]傅友强,于晓莉,杨旭健,等.干湿交替诱导水稻根表铁膜形成的基因表达谱分析[J].中国水稻科学,2017,31(2):133-148.
[22] HUANG J, WANG S, LIN J, et al. Dynamics of cadmium concentration in contaminated rice paddy soils with submerging time[J]. Paddy Water Environ, 2013, 11(1):483-491.