冷季型草坪草耐旱及耐寒性比较  

The Comparisons of Resist Drought and Cold on Several Cool-Season Grass in Beijing

作　　者：马智宏[1] 李征[2] 王北洪[1] 黄文江[1] 温海峰[2] 

机构地区：[1]北京市农林科学院国家农业信息化工程技术研究中心,北京100089 [2]北京市农林科学院北京草业与环境研究发展中心,北京100089

出　　处：《草地学报》2002年第4期318-321,共4页Acta Agrestia Sinica

基　　金：北京市自然科学基金重点项目"北京抗旱;抗病;常绿草坪草种选育及管理技术研究"课题资助 ;课题编号 :60 0 10 0 1

摘　　要：对冷季型草坪草种在夏季进行缺水处理 ,在冬季在自然条件下 ,比较其耐旱及耐寒性。在观测期测定草坪盖度 ,冬季测电解质渗出率、超氧化物歧化酶 ,过氧化物酶活性、丙二醛、叶绿素含量及叶片含水量。结果表明 ,缺水处理后 ,供试品种间盖度表现各异。生理生化指标呈规律性变化。其耐旱及耐寒性依次为高羊茅 >早熟禾 >To compare the drought and cold resistance of various cool season grasses in Beijing, five different cultivars were treated with drought in summer and natural cold in winter. The coverage, electrolyte leakage, activities of SOD and POD,content of MDA and chlorophyll were evaluated. The results showed that the coverage of various cultivars displayed markedly differences after treated by drought in summer. These physiological indexes measured after growth in field in winter changed in rule. The drought resistance and cold resistance of tall fescue is strongest among the various cultivars in this paper, followed by that of bulegrass,ryegrass in declined order.

关 键 词：冷季型草坪草 耐寒性 盖度 耐旱性 

分 类 号：S688.4[农业科学—观赏园艺]