摘要
为了研究不同抗病枣树新品种(系)的抗冻性能,采用田间调查方法,调查了阜星、唐星、新星等12个抗病枣树新品种(系)8年生或高接换头1～3年后的枣树遭受雪灾后的冻害情况。结果表明:不同品种、改接年限和砧木粗度的枣树其抗冻性不同。还分析了冻害的直接原因,即与春节前后降雪引起的地表的持续低温和温度的剧烈变化密切相关;并提出了减轻枣树冻害危害的具体措施。
In order to research freeze resistance in new disease-resistant varieties of Ziziphus jujuba Mill,the freeze injury situation after snow disaster was investigated taking 12 new disease-resistant varieties at 8-year-old or 1-3 years after top grafting as samples,by the field investigation method,and the direct cause of freeze injury was analyzed.The results showed that the freeze-resistance were different due to different varieties,grafting years and rootstock width.The freeze injury had an affinity with constant low temperature on earth surface and rapid changes of temperature because of snowfall in Spring Festival.The research result showed that the concrete measures about relieving freeze injury were put forward.
出处
《经济林研究》
2010年第4期115-118,共4页
Non-wood Forest Research
基金
国家科技支撑项目(2008BAD92B03-02)
国家农业科技成果转化资金项目(2009GB2A20023)
河北省科技支撑计划项目(06220117D-2)
河北省林业局科技计划项目(0602306)
关键词
枣树
抗冻性
冻害及其成因
越冬保护措施
Ziziphus jujuba Mill
freeze-resistance
freeze injury and origin
over wintering protection
