Arid
水分胁迫对毛乌素地区4树种幼苗生理特性的影响
其他题名The Influence of Draught Stress on the Physiological Indexes of Seedlings of Four Tree Species in Maowusu
哈申格日乐; 宋云民; 李吉跃; 周泽福
来源期刊林业科学研究
ISSN1001-1498
出版年2006
卷号19期号:3页码:358-363
中文摘要通过对毛乌素地区4种树苗进行盆栽水分胁迫试验,研究了5种水分条件下4种树苗的水势、枝条相对含水量、相对电导率、叶绿素含量和脯氨酸含量等生理指标,比较了各树苗的耐旱能力。结果表明:随着干旱胁迫的加剧,4种树苗的相对含水量、叶绿素含量明显降低,相对电导率和脯氨酸含量增加。从正常水分条件至严重干旱胁迫,樟子松、新疆杨、紫穗槐和乌柳的电导率分别为34.19%~39.25%、15.67%~49.77%、18.91%~56.27%和17.01%~77.26%;相对含水量分别为86.47%~58.19%、87.02%~36.42%、90.08%~46.19%和90.67%~51.19%;脯氨酸含量分别为21.26~234.30、32.25~181.93、32.18~284.59、24.76~122.16mug·g^-1(FW);叶绿素总量变化不大,阔叶树平均为3.27~1.82mg·g^-1,樟子松为2.25~1.05mg·g^-1;平均比正常水分条件相对含水量降低40.56%、叶绿素含量降低1.33mg·g^-1、相对电导率增加34.19%、脯氨酸含量增加178.14mug·g^-1(FW)。研究结果还表明,樟子松和紫穗槐抗旱性较强,较适合在干旱地区栽培利用。
英文摘要Physiological indexes such as water potential, relative water content of twigs, chlorophyll content, free proline and so on, were measured and studied in five water conditions by treating water stress of potted seedlings of four tree species in Maowusu region. And the drought resistance capabilities among tree species were compared. The result showed that with the increase of drought stress, the relative water content, chlorophyll content decreased obviously, the relative permeability of plasma membrane and the content of free proline increased. From normal water condition to serious water stress, the values of indexes such as conductance rate, RWC, free Proline of Pinus sylvestris var. mongolica, Populus alba var. pyramidalisa Bunge, Amorphafruticosa, Salix cheiophila respectively were: conductance rate: 34.19%~39.25%, 15.67%~ 49.77%, 18.91% ~ 56.27% and 17.01% ~ 77.26% ; RWC :86.47% ~ 58.19% ,87.02% ~36.42% ,90.08% ~46. 19% and 90.67% ~51.19% ;Proline:21.26 ~ 234.30,32.25 ~ 181.93,32.18 ~ 284.59 and 24.76 ~ 122.16mg·g^-1 (FW). The change of total cholophyll was not so much, the average changing range of broadleaved trees were 3.27~1.82 mg·g^-1 and conifers were 2.25 ~ 1.05 mg·g^-1 Compared with the values in normal water condition,the average relative water content decreased by 40.56% , the content of cholophyll decreased by 1.33mg·g^-1, the relative permeability of plasma membrane increased by 34.19% and free proline increased by 178. 141mug·g^-1 (FW). The result of the variation analysis of the values of each measured indexe indicated that the drought resistance capabilities of Pinus sylvestris var. mongolica,Amorpha fruticosa were greater, as a result, they are more suitable for cultivation and utilization in arid area.
中文关键词毛乌素地区 ; 水分胁迫 ; 树苗 ; 生理特性
英文关键词Maowusu area water stress seedlings physiological indexes
类型Article
语种中文
国家中国
收录类别CSCD
WOS类目Plant Sciences
WOS研究方向Plant Sciences
CSCD记录号CSCD:2447672
来源机构北京林业大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/219930
作者单位哈申格日乐, 北京林业大学资源与环境学院, 北京省部共建森林培育与保护教育部重点实验室, 北京 100083, 中国.; 李吉跃, 北京林业大学资源与环境学院, 北京省部共建森林培育与保护教育部重点实验室, 北京 100083, 中国.; 宋云民, 国家林业局林业工作站管理总站, 北京 100714, 中国.; 周泽福, 中国林业科学研究院林业研究所, 北京 100091, 中国.
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哈申格日乐,宋云民,李吉跃,等. 水分胁迫对毛乌素地区4树种幼苗生理特性的影响[J]. 北京林业大学,2006,19(3):358-363.
APA 哈申格日乐,宋云民,李吉跃,&周泽福.(2006).水分胁迫对毛乌素地区4树种幼苗生理特性的影响.林业科学研究,19(3),358-363.
MLA 哈申格日乐,et al."水分胁迫对毛乌素地区4树种幼苗生理特性的影响".林业科学研究 19.3(2006):358-363.
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