摘要
对北美红杉不同个体间插穗生根能力的试验研究表明：北美红杉不同个体间插穗生根能力存在着很大的变异性，其中生根率的变异范围在16％-100％，插穗的平均生根时间变异范围在39—110d；生根率与平均生根时间的负相关关系达到了极显著水平（相关系数r=-0．8466）；对31个单株个体插穗的生根类型研究表明，有27个为以愈伤组织生根为主的类型，有4个为中间生根类型；插穗生根率随着生根类型多样性的增加呈现升高的趋势。
The experiment on rootage ability of various individuals＇ inter- inarching of Sequoia sempervirens shows that there is great variability existed in rootage ability among individuals. In detail, variability extent of rootage rate changes from 16% to 100%, and the average rootage duration is between 39 to 110 days. The negative correlativity of rootage rate with average rootage duration is extremely remarkable （correlation coefficient r = -0.8466）. Experiment on rootage types of compared 31 various individual inarches reveals that 27 types belong to rootage by callus, and 4 types of rootage in - between. The rootage rate has potential to rise with increasing of diverse rootage types.
出处
《林业调查规划》
2006年第3期98-101,共4页
Forest Inventory and Planning
基金
云南省省级重点建设学科西南林学院森林培育学科资助
关键词
北美红杉
插穗
无性系
生根能力
生根率
生根时间
生根类型
Sequoia sempervirens
inarch
asexuality
rootage ability
rootage rate
rootage duration
root type
