现代农业科技Issue(12)：150-151,153,3.
应用电导率法及Logistic方程测定6种观赏海棠的抗寒性
Measurement of Cold Tolerance in Six Ornamental Crabapple Based on Electrical Conductivity Method Combining with Logistic Equation
韩玲玲 1韩志强 2杨强胜 1吐娜木拉 1李娟娟1
作者信息
- 1. 内蒙古自治区包头市园林科技研究所，内蒙古包头 014010
- 2. 包头市昆区农牧林水局
- 折叠
摘要
Abstract
Taking one-year-old dormant branches of six introduced ornamental crabapple in Baotou as test materials,electrical conductivity method was used to determine the change of relative electric conductivity of six cultivars ornamental crabapple under the condition of low temperature,and Logistic equation was used to fit it and then calculate their respective semi-lethal temperature(LT50). The result showed that the cold tolerance had significant differences in six cultivars ornamental crabapple.The relative electric conductivity of six cultivars ornamental crabapple increased as a S-curves with the decrease of temperature,and the S-curves inflection point temperature. From these,the cold tolerance(from strong to weak)were as followingHong Baoshi>Zhen zhu>Ya dang>Xi fuhaitang>Zuan shi>Xuan li. The corresponding semi-lethal temperature was-29.99℃,-26.59℃,-24.51℃,-22.26℃,-21.04℃and-17.71℃,respectively.关键词
观赏海棠/抗寒性/相对电导率/Logistic方程/半致死温度Key words
ornamental crabapple/cold tolerance/relative electric conductivity/Logistic equation/semi-lethal temperature分类
农业科技引用本文复制引用
韩玲玲,韩志强,杨强胜,吐娜木拉,李娟娟..应用电导率法及Logistic方程测定6种观赏海棠的抗寒性[J].现代农业科技,2015,(12):150-151,153,3.
