摘要
为了评价山椒的抗寒性,探索其幼树的防寒技术,连续两年进行了气象观测和自然条件下枝条相对电导率的测定,并对8个处理的幼树防寒措施进行了研究。结果表明:山椒可以短时间耐受-20℃左右的低温,极端低温及其累积效应是造成山椒幼树冻害和抽条的直接原因;4年生花山椒、葡萄山椒、朝仓山椒与国内花椒秦安1号的抗寒能力基本一致;3年生以下幼树的抗寒能力较弱,绑草把是最经济、有效的防寒方法。
In order to evaluate cold hardiness in Zanthoxylurn piperiturn and research cold-proof techniques, 8 cold-proof measures of young trees were researched based on relative conductivities of branches under natural condition and meteorological observation during two years. The results showed that Z. piperitum could tolerate the temperature of --20 ℃in a short time. Extreme low temperature and its cumulative effect were the direct factors causing freezing injury and shoot shriveling of young trees. Cold-hardiness of 4-year-old Hua Shanjiao, Grape Shanjiao, Chaocang Shanjiao was similar to native Qin＇an NO. 1. Cold-hardiness of young trees under three years was relatively weak, and straw-covering was the most economic and effective cold-proof method.
出处
《经济林研究》
2008年第4期44-48,共5页
Non-wood Forest Research
基金
科技部农业科技成果转化资金项目(2008GB2A200011)
关键词
山椒
抗寒性
电导率
防寒技术
绑草把
Zanthoxylum piperitum
cold hardiness
conductivity
cold-proof techniques
straw-covering
