石蜡处理插穗提高毛白杨扦插成活与生长的研究

Studies on the Raising Hardwood Cuttings Survival Rate and Young Plant Growth of Populus tomentosa by Treating Cuttings with Paraffin Wax

1 995～ 1 997年用生产上极易操作的石蜡处理插穗上端 1 /3的方法 ,使 5 .8hm2 毛白杨扦插成活率 ,较仅浸水而不封蜡的对照提高 2 8.9% ,地茎、高、鲜重和干重生物量分别提高 36.1 % ,76.8% ,98.6%和 89.5 %。处理插穗平均生根 1 5 .3条 ,对照 7.9条。

A new way of raising cuttings survival rate for Populus tomentosa cuttage propagation was studied in this paper. By soaking 1/3 top of cuttings with paraffin wax in 5.8 hm 2 in 1995~1997,the experiment reached good results. The results show that this method can not only raise cuttings survival rate but enhance biomass of cuttage seedlings compared with the method soaking cuttings in water. Raising percentages of survival rate, height, base diameter, fresh weight and dry weight of young plant by cutting are respectively 28.9%,36.1%,76.8%,98.6% and 89.5%. Average rooting number of treated cuttings is 15.3 , but contrast is only 7.9.