多年生黑麦草高温半致死温度与耐热性研究  

Semi-lethal high temperature and heat tolerance of twelve varieties of Lolium perenne

作　　者：石永红[1] 万里强[2] 刘建宁[1] 王运琦[1] 吴欣明[1] 李向林[2] 

机构地区：[1]山西省农业科学院畜牧兽医研究所,山西太原030032 [2]中国农业科学院北京畜牧兽医研究所,北京100193

出　　处：《草业科学》2010年第2期104-108,共5页Pratacultural Science

基　　金：基本科研业务费专项研究基金(2009td-2);国家科技支撑计划基金(2006BAD16B07;2007BAD56B02);"948"项目(2006-G38);山西省农科院博士基金(YBSJJ0704)

摘　　要：运用电导率法对多年生黑麦草Lolium perenne的6个坪用品种和6个牧用品种进行耐热性测定。叶片经梯度高温处理后,处理温度与细胞伤害率之间呈"S"型曲线,经显著性检验符合Logistic方程。通过Logistic拐点确定半致死温度,得出6个坪用品种耐热性的强弱次序是:爱神特>卡特>顶峰>百舸>首相>球道;6个牧用品种耐热性的强弱次序是雅晴>欧必克>努依>多福>凤凰>卓越。The heat tolerance of twelve varieties of Lolium perenne was tested with the electrical conductivity method. A sigmoid response curve with Logistic equation existed between the rate of injured cells of leaves and treatment temperature. The semi-lethal temperature obtained by seeking the point of inflexion on the curve. The heat tolerance of six turfgrass varieties in the decreased order were Accent, Cutter, Pinnacle, Bartwingo, Premier and Fairway, and for six forage varieties in the decreased order were Yatsyn, Oupec, Nul, Tove, Polim and Eminent.

关 键 词：多年生黑麦草 高温胁迫 耐热性 半致死温度 

分 类 号：S688.4[农业科学—观赏园艺] S54[农业科学—园艺学]