摘要
为了检验已培育出的适于我国华北地区生长的一批欧美杨新品种(以鲁克斯杨P.delt-oides cv‘Lux’(ex.I-69/55)简称69杨为母本,欧洲黑杨及其变种为父本)的抗寒性,进行了2年(1988～1989年)的抗寒实验。实验用自然低温冷冻、人工低温冷冻、苗木失水试验和冷冻后生长恢复试验四种方法,对欧美杨新品种及对照I-69杨和I-214杨的抗寒性进行了研究,结果是欧美杨新品种抗寒性极显著地高于母本I-69杨,接近或稍高于我国黄河流域广为栽培的I-214杨,遗传了父本欧洲黑杨的抗寒能力。实验为欧美杨新品种的栽培范围提供了可靠的科学依据。
The tests of natural and artificial low-temperature treatments, water loss of seedlings and growth recovery of the seedlings treated under low-temperature condition, are carried out to compare the cold resistance of the new variety with that of the checks, or P. deltoides cv. 'Lux' (ex. I-69/55) and P. euramericana cv. I-214. The results show that the cold resistance of the new variety is significantly higher than that of the female parent I-G9 and slightly higher than that of I-214, indicating that the new variety has inherited the cold resistance from the male parent, P. nigra. The expected aim is gained.
出处
《林业科学研究》
CSCD
北大核心
1990年第5期487-490,共4页
Forest Research
基金
国家"七五"科技攻关项目
