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| 铅对杨梅幼苗生长的影响 | |
| 引用本文： | 何新华,陈力耕,何冰,胡西琴.铅对杨梅幼苗生长的影响[J].果树学报,2004,21(1):29-32. |
| 作者姓名： | 何新华 陈力耕 何冰 胡西琴 |
| 作者单位： | 1. 浙江大学园艺系,浙江,杭州,310029;广西大学,广西,南宁,530004 2. 浙江大学园艺系,浙江,杭州,310029 3. 广西大学,广西,南宁,530004 |
| 基金项目： | 浙江省自然科学基金资助项目(编号:302362) |
| 摘 要： | 在水培条件下,研究了硝酸铅对1年生杨梅(Myricarubra)幼苗生长的影响。在含1mmol/L硝酸铅的1/4Hoagland培养基中培养2个月,杨梅幼苗能正常生长,但与对照相比,生长受到一定程度的抑制。即使在含5mmol/L硝酸铅的1/4Hoagland培养基中,也有1株杨梅幼苗能存活2个月。杨梅对铅离子有较强的吸收能力和抗性,叶片干重中铅含量达到1107.9mg/kg,植株没有出现铅毒害症状,而且生长正常。因而也可认为杨梅是一种铅超积累植物,可用于铅污染土壤的修复。 |
| 关 键 词： | 杨梅 生长 铅 |
| 文章编号： | 1009-9980(2004)01-029-04 |
| 修稿时间： | 2003年2月24日 |
Effect of Lead Nitrate on the Growth of Myrica rubra |
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| Abstract: | Effect o f lead nitrate on1-year-old seedlings of Myrica rubra cultured in1/4Hoagland solution was studied.Re-sults showed that the seedlings of Myrica rubra cultu red in1/4Hoagland solution containing1mmol/L lead nitrate grew normally for 2months,although it grew a little slower than control;furthermore,one seedli ng of Myrica rubra could survive2months in1/4Hoagland solution containing5 .0mmol/L lead nitrate.Myrica rubra has high absorption capability and re-si stance to Pb 2+ .The seedlings of Myrica rubra did not appear harmful symptom and grew nor mally when Pb 2+ concentration in leaf was1107.9mg/kg(Dry weight).Therefore,Myric a rubra could be considered as hyper-accumulator of Pb 2+ and used in remediation of lead-contaminated soil. |
| Keywords: | Myrica rubra Lead nitrate Pb 2+ |
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