草地学报

›› 2011, Vol. 19 ›› Issue (2): 253-256.DOI: 10.11733/j.issn.1007-0435.2011.02.013

• 研究论文 • 上一篇    下一篇

五种草坪草对水涝胁迫的反应及耐涝评价

胡化广, 张振铭, 沈晓华   

  1. 盐城师范学院生命科学与技术学院, 江苏, 盐城, 224051
  • 收稿日期:2010-09-17 修回日期:2011-01-20 出版日期:2011-04-15 发布日期:2011-04-15
  • 作者简介:胡化广(1979- ),男,河南濮阳市人,硕士,讲师,主要从事暖季型草坪草逆境生理研究,E-mail:hhgjoy@yahoo.com.cn
  • 基金资助:
    盐城师范学院生态学重点建设学科基金资助

Responses of Five Turfgrasse Species to Water Stress and Tolerance Evaluation

HU Hua-guang, ZHANG Zhen-ming, SHEN Xiao-hua   

  1. School of Life Science and Technology, Yancheng Teachers University, Yancheng, Jiangsu Province 224051
  • Received:2010-09-17 Revised:2011-01-20 Online:2011-04-15 Published:2011-04-15

PDF

摘要： 以沟叶结缕草(Zoysia matrella(L.)Merr.)、大穗结缕草(Z.macrostachya Franch.et Sav.)、普通狗牙根(Cynodon dactylon(L.)Pers.)、青岛结缕草(Z.japonicacv QingDao)和高羊茅品种翠碧(Festuca arundinacea cv Triplet)为材料,对其在水涝胁迫下草坪草形态、生理指标变化进行了研究,并采用隶属函数法对其耐涝性进行评价,以期为江南中下游地区草坪草的栽培提供试验依据。结果表明:随水涝时间的延长,叶片枯黄率逐渐增加,叶片相对电导率(REC)、超氧化物歧化酶(SOD)和过氧化物酶(POD)活性以及游离脯氨酸(Pro)和可溶性总糖(TSC)含量5个生理指标在水胁迫15 d时均比对照明显增加;以REC,SOD和POD活性以及Pro和TSC含量为指标,对5个草种的耐涝隶属函数值进行计算,并对其耐涝适应性进行综合评价,得出5个草种的耐涝性顺序为大穗结缕草>普通狗牙根>翠碧>青岛结缕草>沟叶结缕草。

关键词: 草坪草, 耐涝性, 反应, 隶属函数法, 评价

Abstract: This study describes five turfgrass species(Zoysia matrella(L.) Merr.,Z.macrostachya Franch.et Sav.,Cynodon dactylon(L.) Pers.,Z.japonica cv QingDao and Festuca arundinacea cv Triplet) to determine changes of morphological and physiological indexes during water stress.Species tolerant to excessive water were evaluated by subordinate function.Results show that leaf wilt rate,leaf relative electric conductivity(REC),superoxide dismutase(SOD) activity,peroxidase(POD) activity,content of proline and total soluble carbohydrate(TSC) were significantly increased over controls on 15th day of waterlogging.Subordinate function analysis based on REC,SOD and POD activity indicated that the order of waterlogging tolerance from high to low was: Z.macrostachya Franch.et Sav.>Cynodon dactylon(L.) Pers.>Festuca arundinacea cv Triplet>Z.japonica cv QingDao > Z.matrella(L.) Merr.

Key words: Turfgrass, Waterlogging tolerance, Responses, Subordinate function, Evaluation

中图分类号: