ZHANG Zhixiao,ZENG Lirong,ZHAO Jialing,et al.Response to Salt Stress of Growth and Physiological Characteristic of Five Apple Rootstocks[J].Northern Horticulture,2017,41(03):19-25.[doi:10.11937/bfyy.201703005]
五种苹果砧木的生长及生理特性对盐胁迫的响应
- Title:
- Response to Salt Stress of Growth and Physiological Characteristic of Five Apple Rootstocks
- 文献标志码:
- A
- 摘要:
- 以八棱海棠(Ｍalus robusta)、平顶海棠（Malus prunifolia）、红果海棠（Malus sieboldii)、珠美海棠（Ｍalus zumi）、西府海棠（Ｍalus micromalus)一年生实生苗为试材，对其进行盐胁迫处理，比较其耐盐性差异。结果表明：随盐浓度增加，参试植物的新梢生长量、叶面积和叶片厚度、根系活力降低，盐害率和盐害指数增加，其中八棱海棠的变化幅度最小，红果海棠相对较大；叶绿素（Chl）和类胡萝卜素（Car）含量变化各异，但八棱海棠和平顶海棠的变化较小；参试植株的可溶性糖及丙二醛（MDA）含量均随盐浓度增加呈上升趋势；超氧化物歧化酶（SOD）和过氧化物酶（POD）活性均受不同程度影响，八棱海棠的SOD活性变化较小；八棱海棠的隶属函数平均值最大，红果海棠的最小。结合其形态表现综合分析认为，5种苹果砧木的耐盐性强弱依次为：八棱海棠、西府海棠、平顶海棠、珠美海棠、红果海棠。
- Abstract:
- Using one year old seedling plants as tested materials，salt resistance of 5 kinds apple rootstocks(Malus robusta，Malus prunifolia，Malus sieboldii，Malus zumi，Malus micromalus) was compared by salt stress treatment.The results showed that with the increase of NaCl concentration，the shoot increment，leaf area，leaf thickness and root activity of the tested plants declined gradually；while salt injury index and its rate increased with the smallest increasing range for Ｍ.robusta and the biggest one for M.sieboldii.The content of chlorophyll and carotenoid varied in different treatments，with relative small variations for M.robusta and M.prunifolia.The contents of soluble sugar and MDA of the tested plants had a trend to increase with aggravation of salt stress，the activities of SOD and POD were affected in different degrees；M.robusta was the biggest and M.sieboldii was the smallest of the averange subordinate function.Comprehensive analysis the performance of the rootstocks with the indexes obtained in the test，salt resistance of the 5 apple rootstocks could be ranked as follows,M.robusta,Ｍ.micromalus,M.prunifolia,Ｍ.zumi,M.sieboldii.
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备注/Memo
第一作者简介：张志晓（1971-），男，河南南阳人，硕士研究生，研究方向为果树栽培适应性。E-mail：john148@263.net.责任作者：骆建霞（1957-），女，河北涿州人，本科，教授，现主要从事果树及园林地被植物资源及其适应性等研究工作。E-mail：tjluojianxia@126.com.基金项目：天津市科委 2014年基础与前沿技术研究计划资助项目（14JCYBJC30200）；天津市农委农业科技示范推广资助项目（201101120）。