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生态学杂志 ›› 2005, Vol. ›› Issue (8): 893-896.

• 研究报告 • 上一篇    下一篇

镧浸种对水稻种子萌发及幼苗生长的影响

张杰, 刘登义, 黄永杰, 刘雪云   

  1. 安徽师范大学生物多样性研究中心, 重要生物资源保护与利用研究安徽省重点实验室, 芜湖, 241000
  • 收稿日期:2004-10-24 修回日期:2004-12-18 出版日期:2005-08-10
  • 通讯作者: 张杰,男,1973年生,硕士研究生,讲师.主要从事植物生理生态学和环境污染生态学研究,发表论文5篇.E-mail:zhjie1211@sina.com
  • 基金资助:
    安徽省自然科学基金项目(03043501);重要生物资源保护与利用研究安徽省重点实验室专项基金资助项目.

Effects of seed soaking with La3+ on seed germination and seedling growth of rice

ZHANG Jie, LIU Dengyi, HUANG Yongjie, LIU Xueyun   

  1. Anhui Province Key Laboratory for Conservation and Exploitation of Biological Resources, Biodiversity Research Center, Anhui Normal University, Wuhu 241000, China
  • Received:2004-10-24 Revised:2004-12-18 Online:2005-08-10

摘要: 以水稻种子为材料,研究了稀土元素镧对水稻种子活力和幼苗生长的影响。结果表明,1~20mg·L-1La3+处理能提高水稻种子的活力,提高蛋白酶、淀粉酶和脂肪酶的活性,并能促进水稻茎、叶和根系的生长,其中10mg·L-1La3+处理效果最佳。当浓度超过30mg·L-1时,水稻种子萌发和幼苗生长受到抑制。此外,镧对水稻植株地下部分(根系)生长的影响比地上部分(茎叶)生长的影响要明显。镧对水稻种子萌发期间3种酶活性的影响程度表现为蛋白酶>脂肪酶>淀粉酶。

关键词: 秸秆, 产气量, 组合效应, 合理利用

Abstract: An experiment with JinYou No.63 rice seeds was installed to study the effects of La3+ soaking on the seed germination and seedling growth of the rice.The results showed that within the range of 120 mg稬-1,La3+ increased the vigor of seed and its proteinase,amylase and lipase activities,and promoted the growth of plant shoot and root.The optimal concentration of La3+ was 10 mg稬-1.When the La3+ concentration was higher than 30 mg稬-1,seed germination and seedling growth were depressed.The effect of lanthanum on root was much more apparent than on shoot,and the sensitivity of enzymes to La3+ was in the order of proteinase>lipase>amylase.

Key words: Straw, Gas production, Combinatorial effect, Reasonable utilization

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