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Position: Home > Articles > Effects of Lead on Seed Germination and Seedling Growth of Rice Hubei Agricultural Sciences 2016 (5) 1109-1111

铅对水稻种子萌发和幼苗生长的影响

作  者:
钟静;饶胜;刘杉;黄晶晶
单  位:
植物抗癌活性物质提纯与应用湖北省重点实验室/湖北第二师范学院
关键词:
水稻(Oryza sativa L.);种子萌发;幼苗生长;铅离子胁迫
摘  要:
以湖北省广泛种植的5个水稻(Oryza sativa L.)品种种子为材料,研究了不同硝酸铅水平(0、50、100、300、500 mg/L)对水稻种子萌发和幼苗生长的影响,并比较分析了粳稻和籼稻对铅离子胁迫的耐受性差异。结果表明,低浓度硝酸铅对粳稻种子的萌发具有一定的促进作用;高浓度硝酸铅对所有水稻种子萌发都具有十分显著的抑制作用,且这种抑制作用随着硝酸铅浓度的升高而增强;同时铅离子胁迫对5种水稻幼苗的生长都呈现出显著的抑制作用;此外,在5种水稻品种中,粳稻表现出较好的铅离子胁迫耐受性。
译  名:
Effects of Lead on Seed Germination and Seedling Growth of Rice
作  者:
ZHONG Jing;RAO Sheng;LIU Bin;HUANG Jing-jing;Hubei Key Laboratory of Purification and Application of Plant Anti-Cancer Active Ingredients,Hubei University of Education;
关键词:
rice(Oryza sativa L.);;seed germination;;seedling growth;;Pb2+ stress
摘  要:
The effects of lead nitrate with different concentrations(0、50、100、300、500 mg / L) on seed germination and seedling growth of five rice varieties that widely cropped in Hubei province was studied, and the differences of Pb2 +stress between japonica and indicia were also analyzed and compared. The results showed that lead nitrate with low concentration could promote the seed germination of japonica, while high concentration could obviously inhibit seed germination of all rice varieties,and this inhibitory effect was enhanced with the increase of lead nitrate concentration. The Pb2+stress on the growth of five rice seedlings emerged significant inhibition. Moreover, for five kinds of rice varieties, japonica showed better tolerance to Pb2+stress than indicia.

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