摘要
采用人工模拟低温处理技术测定了6种(含品种)冬青树种离体叶片的相对电导率,并用Logistic方程计算它们的半致死温度(LT50)。结果表明:6种(含品种)冬青耐低温能力有显著差异,由高到低依次为克恩氏冬青>欧洲冬青>大别山冬青>‘蓝少年’冬青>杂种冬青>‘蓝少女’冬青,其半致死温度值LT50在-11～-24℃之间。
An artificial simulation of low temperature was used to measure relative electric conductivity in leaves of 6 Rex species and cultivars trees and lethal temperature 50（ LT50 ） were calculated using logistic equation. The results indicated that the tolerance of low temperature in 6 species and cultivars of llex trees had a significant difference, and the cold resistance from strong to weak was I. x koehneana＇ Emily Bruner＇. 〉 I. triflorap 〉 L dabieshanensis 〉 L mersevae ＇ Blue Boy＇ 〉 Ilez x ＇ Nellie R. Steven＇ 〉 I. mersevae ＇ Blue Gir＇. The LT50 of Ilex was between ＇ 11 - - 24℃.
出处
《林业科技开发》
北大核心
2012年第3期68-70,共3页
China Forestry Science and Technology
基金
江苏林业三项工程项目[编号:lysx(2010)20]
关键词
冬青
电导率
LOGISTIC方程
抗寒性
Ilex
relative electric conductivity （REC）
Logistic equation
cold tolerance
