程方,赵小军,倪云,黄开栋,张康,唐罗忠.5个南方型杨树无性系苗木耐盐性盆栽试验[J].林业科学研究,2019,32(3):105-112
5个南方型杨树无性系苗木耐盐性盆栽试验
Study on Salt Tolerance of Five Southern Poplar Clones in Pot Culture
投稿时间:2018-08-28  修订日期:2018-12-05
DOI:10.13275/j.cnki.lykxyj.2019.03.014
中文关键词:  杨树  盆栽  耐盐性  隶属函数法  综合评价
英文关键词:poplar  pot culture  salt tolerance  subordination function method  comprehensive evaluation
基金项目:国家科技支撑计划课题(2015BAD09B02);江苏省科技计划项目(BE2018392);江苏高校优势学科建设工程资助项目(PAPD)。
作者单位E-mail
程方 南京林业大学南方现代林业协同创新中心, 南京林业大学林学院, 江苏 南京 210037  
赵小军 南京林业大学南方现代林业协同创新中心, 南京林业大学林学院, 江苏 南京 210037  
倪云 南京林业大学南方现代林业协同创新中心, 南京林业大学林学院, 江苏 南京 210037  
黄开栋 南京林业大学南方现代林业协同创新中心, 南京林业大学林学院, 江苏 南京 210037  
张康 南京林业大学南方现代林业协同创新中心, 南京林业大学林学院, 江苏 南京 210037  
唐罗忠 南京林业大学南方现代林业协同创新中心, 南京林业大学林学院, 江苏 南京 210037 luozhongtang@njfu.edu.cn 
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中文摘要:
      [目的]研究盐胁迫对杨树生长及生理指标的影响,开展不同杨树无性系耐盐性比较及评价。[方法]以895杨(Populus×euramericana ‘Nanlin 895’)、1388杨(Peuramericana ‘Nanlin 1388’)、3804杨(P.deltoides ‘Nanlin 3804’)、110杨(P.deltoides×P.cathayana cl.‘110’)和328杨(Peuramericana cl.‘328’)5个杨树无性系为材料,采用室内盆栽方法,以无盐处理为对照,对其在不同盐(NaCl)浓度处理(1‰、2‰、3‰、4‰、5‰)土壤下的成活率、生长量、叶片细胞质膜透性、丙二醛含量、光合速率等13项指标进行测定和分析,采用隶属函数法对其耐盐性进行了综合评价。[结果]在土壤盐胁迫下5个杨树无性系的苗高、地径和生物量生长均受到了抑制;苗木成活率、叶片光合速率和叶绿素含量均随盐处理浓度的提高而降低;叶片细胞质膜透性和丙二醛含量随着盐处理浓度的提高而提高。[结论]5个杨树无性系耐盐性存在差异,其顺序为:110杨 > 328杨 > 3804杨 > 895杨 > 1388杨。110杨能耐受3‰左右的土壤含盐量,其它无性系只能耐受2‰左右。
英文摘要:
      [Objective] To study the effects of salt stress on growth and physiological indicators of poplar and to compare the salt tolerance among poplar clones.[Method] The seedlings of five poplar clones, i.e. Nanlin-895 (Populus×euramericana ‘Nanlin 895’), Nanlin-1388 (Peuramericana ‘Nanlin 1388’), Nanlin-3804 (P. deltoides ‘Nanlin 3804’), 110 (P. deltoides×P. cathayana cl. ‘110’) and 328 (Peuramericana cl. ‘328’) were selected to analyze the survival rate, growth traits, cell membrane permeability, malondialdehyde content and photosynthetic rate treated with 1‰, 2‰, 3‰, 4‰, 5‰ of salt (NaCl) and the CK in a greenhouse. The salt tolerance of clones was comprehensively evaluated by subordinate function method.[Result] The height, ground diameter and biomass of all the poplar clones seedling were inhibited under the salt treatments. The survival rate, net photosynthetic rate and chlorophyll content of seedlings decreased with increasing salt concentration, while the cell membrane permeability and malondialdehyde content in leave increased with increasing salt concentration.[Conclusion] The salt tolerance of the five clones is in the order of clone 110 > clone 328 > Nanlin-3804 > Nanlin-895 > Nanlin-1388. Clone 110 can tolerate the soil with a salt concentration of 3‰ while the other clones can tolerate the soil with a salt concentration of 2‰.
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