摘要
为了研究花椒组织结构与抗寒性的关系,对3个花椒品种1 a生休眠枝进行解剖结构观察和电解质外渗率的测定,并用恢复生长法进行验证.结果表明:木质部、总面积、髓部、干木质部粗与抗寒性之间显著正相关(R2>0.570),韧皮部、周皮/干粗与之呈显著负相关(R2<-0.969);导管细胞长度越短、直径越大,管胞细胞和纤维细胞的长度和直径越小,抗寒性越强.此外,3个花椒品种恢复生长的成活率随处理温度的下降而降低,致死温度在-20℃～-25℃之间,其抗寒性顺序依次为:秦安1号>油椒>大红袍.
One-year-old dormant branches of three cultivars of Zanthoxylum Bungeanum were used to observe their anatomical structure and determine the relative conductivity to study the relationship between tissue structure and cold resistance characteristics,and the results were validated with the regrowth method.The results showed that the relationships between xylem,total area,vascular,diameter of the xylem and cold resistance characteristics(Relative conductivity) are positively correlated(R2>0.570),while the r...
出处
《甘肃科学学报》
2008年第4期45-47,共3页
Journal of Gansu Sciences
基金
国家自然科学基金项目(30771767)
关键词
花椒
抗寒性
组织结构
Zanthoxylum bungeanum
cold resistance characteristics
tissue structure
