不同PEG-6000浓度处理下几种冷季型草坪草抗旱性比较研究  

Studies on Drought Tolerance of Several Cool-season Turfgrasses under Different Consistency PEG-6000 Solutions

作　　者：段碧华[1] 尹伟伦[2] 韩宝平[1] 夏新莉[2] 张鹏[1] 

机构地区：[1]北京农学院植物科技系,北京102206 [2]北京林业大学生物学院,北京100083

出　　处：《中国农学通报》2005年第8期247-251,共5页Chinese Agricultural Science Bulletin

基　　金：国家高新研究发展计划(863)项目"植物新品种筛选与利用--抗旱节水林草筛选技术;良种选育与利用"(2002AA2Z4011);北京市科技新星项目"耐旱节水冷季型草坪草新品种选育"(H020821300120)资助

摘　　要：研究了3种冷季型草坪草的6个品种在PEG-6000模拟干旱胁迫条件下的生长表现和生理指标。结果表明:高羊茅的“家园”品种在干旱胁迫条件下具有较好的生长表现、在土壤中的根系分布最深、且能维持较高过氧化氢酶活性,表明其与其他供试品种相比具有较强的抗旱能力。The drought resistances of six varieties of three species of cool-season turfgrasses have been studied in this test. Compared their developing manifestations and living targets that have been measured under the stress of different consistency PEG-6000 solutions, there are different drought resistances of them. The result showed that the PLANTATION of TALL FESCUE kind having the best manifestations , the deepest roots developing in the soil and the highest CAT activity, which indicated that it had stronger drought tolerance than others.

关 键 词：冷季型草坪草 抗旱性 PEG-6000浓度处理 干旱胁迫条件 生长表现 生理指标 根系分布 过氧化氢酶活性 

分 类 号：S688.4[农业科学—观赏园艺]