华北农学报 ›› 2008, Vol. 23 ›› Issue (S1): 131-134. doi: 10.7668/hbnxb.2008.S1.033

所属专题: 水稻

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镉胁迫对水稻种子萌发、幼苗生长和淀粉酶活性的影响

何俊瑜, 任艳芳   

  1. 贵州大学,农学院,贵州,贵阳,550025
  • 收稿日期:2007-11-18 出版日期:2008-12-31
  • 作者简介:何俊瑜(1975-),男,山西河曲人,博士,副教授,主要从事环境生理生态方面的研究.
  • 基金资助:
    贵州省自然科学基金项目(20072058);贵州大学人才基金项目(X060036)

Effect of Cadmium on Seed Germination, Seedling Growth and Amylolytic Activity of Rice

HE Jun-yu, REN Yan-fang   

  1. College of Agronomy,Guizhou University,Guiyang 550025,China
  • Received:2007-11-18 Published:2008-12-31

摘要: 以水稻秀水11为材料,采用室内培养方法,研究了不同浓度镉对水稻种子萌发、幼苗生长和淀粉酶活性的影响。结果表明,镉对水稻种子萌发的影响较小,只有在高浓度镉胁迫下发芽率才受到明显影响。随着镉胁迫浓度的提高,发芽指数、活力指数、根长、淀粉酶活性明显降低。镉胁迫对水稻种子根生长的抑制作用大于芽,α-淀粉酶大于β-淀粉酶。

关键词: 镉, 水稻, 根伸长, 萌发, 淀粉酶

Abstract: The effects of different cadmium concentrations on seed germination, seedling growth and amylolytic activity of rice cultivar Xiushui 11 (Oryza sativa L. cv. Xiushui 11) were studied. The results showed that cadmium had litt le effect on germination rate except seeds were treated under high concentration of cadmium. However, germinat ion index, vigour index, root length and amylolytic activity were signif icantly reduced with the increase of cadmium. The inh-ibit ion of cadmium on root growth was more obviously than that on plumula, and the inhibition on the activity of anylase was more seriously than that on anylase.

Key words: Cadmium, Rice, Germination, Root length, Amylase

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引用本文

何俊瑜, 任艳芳. 镉胁迫对水稻种子萌发、幼苗生长和淀粉酶活性的影响[J]. 华北农学报, 2008, 23(S1): 131-134. doi: 10.7668/hbnxb.2008.S1.033.

HE Jun-yu, REN Yan-fang. Effect of Cadmium on Seed Germination, Seedling Growth and Amylolytic Activity of Rice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(S1): 131-134. doi: 10.7668/hbnxb.2008.S1.033.

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