摘要
分别以暴马丁香(Syringa reticulata)和紫丁香(Syringa oblata Lindl.)的1年生、2年生、3年生离体枝条为试验材料,研究了人工骤降低温处理条件下,可溶性糖含量和过氧化氢酶活性2种生理生化指标的变化规律。初步分析了这2种生理指标与暴马丁香和紫丁香抗寒性的关系。结果表明:从可溶性糖含量单一指标来看,抗寒能力大小为:暴马丁香3年生枝>暴马丁香1年生枝>暴马丁香2年生枝;紫丁香3年生枝>紫丁香2年生枝>紫丁香1年生枝;暴马丁香1年生枝>紫丁香1年生枝;紫丁香2年生枝>暴马丁香2年生枝;紫丁香3年生枝>暴马丁香3年生枝。从CAT活性这一单一指标来看,抗寒能力大小为:紫丁香>暴马丁香;3年生枝>2年生枝>1年生枝。
The one-year-old, two-year-old and three-year-old branches of Syringa reticulata and Syringa oblata Lindl. were used to study the changes in soluble sugar content and hydro- gen peroxide enzyme CAT activity under the artificial freezing tests. The relationship between cold hardiness and these two physiological indicators was analyzed preliminarily. The results showed that: according to the single indicator of soluble sugar content, the level of the resist- ance to cold in S. reticulate was three-year-old branches)one-year-old branches)two-year-old branches; in S. oblata Lindl. three-year-old branches〉 two-year-old branches〉 one-year-old branches; one-year-old branches of S. reticulata〉one-year-old branches of S. oblata Lindl. ; two-year-old branches of S. oblata Lindl. 〉two-year-old branches of S. reticulata; three-year- old branches of S. oblata Lindl. 〉three-year-old branches of S. reticulate. According to the single indicator of CAT activity, the level of cold resistances was S. reticulate)S, oblata Lindl. ; three-year-old branches〉two-year-old branches〉one-year-old branches.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2013年第2期54-59,共6页
Journal of Hebei Agricultural University
关键词
低温胁迫
丁香属
抗寒生理指标
low temperature stress
Syringa L.
physiological indexes of cold resistance