| 铜对鹅观草两个种群生理、发育指标的影响研究 |
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| 引用本文： | 刘登义,杨世勇,谢建春,赵娟.铜对鹅观草两个种群生理、发育指标的影响研究[J].应用生态学报,2001,12(3):455-457. |
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| 作者姓名： | 刘登义 杨世勇 谢建春 赵娟 |
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| 作者单位： | 安徽师范大学生物多样性研究中心, |
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| 基金项目： | 安徽省教育厅自然科学重点基金资助项目(2000JI094ZD) |
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| 摘 要： | 铜尾矿上的鹅观草形态矮小,茎秆柔弱,叶色淡.而生于正常土壤上的鹅观草则茎秆粗状,叶色深.Cu胁迫可引起鹅观草叶绿素含量的降低.一定浓度范围内的Cu对鹅观草的种子萌发起促进作用,尾矿浸提液不降低种子的萌发率,但延迟种子的萌发.根生长实验表明,0.125mg
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| 关 键 词： | 鹅观草 根生长 种子萌发 发育指标 铜协迫 |
| 文章编号： | 1001-9332(2001)03-0455-03 |
| 修稿时间： | 2000年11月15 |
Physiology and development of two Roegneria kamoji populations stressed by copper |
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| LIU Dengyi,YANG Shiyong,XIE Jianchun,ZHAO Juan.Physiology and development of two Roegneria kamoji populations stressed by copper[J].Chinese Journal of Applied Ecology,2001,12(3):455-457. |
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| Authors: | LIU Dengyi YANG Shiyong XIE Jianchun ZHAO Juan |
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| Institution: | College of Life Sciences, Anhui Normal University, Wuhu 241000. |
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| Abstract: | Roegneria kamoji grown copper tailings had weak stem, short height, and thick leave color, while its counterpart on normal soil was the opposite. Exposed to copper, R. kamoji had a decreased chlorophyll content. A certain concentration of copper could promote the seed germination of R. kamoji, and the extract of copper tailings did not decrease the seed germination rate, but deferred the germination. Root growth test indicated that when the concentration of copper was 0.125 mg.L-1, the rooting of R. kamoji was promoted. If the concentration was more than 0.25 mg.L-1, the rooting was inhibited significantly. R. kamoji colonized on normal soil wase more sensitive to copper than that on Cu-polluted soil. |
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| Keywords: | Copper R kamoji Root growth Seed germination |
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