哈密地区沙棘硬枝与嫩枝扦插比较OA

[Objective]By comparing the effects of different substrates and cutting types on the rooting of hardwood and softwood cuttings of Hippophae rhamnoides,the aim is to select the best method for propagating of cuttings for Hippophae rhamnoides.[Method]Two factors inclu-ding substrate and cuttings type were set to study the effects of different treatments on the rooting rate,number of roots,and survival rate of Hip-pophae rhamnoides.[Result]In the cutting of 2-4 year old hardwood and 1-4 year old softwood of Hippophae rhamnoides,the A3B1,A3C1 and A3D1 showed the highest average rooting rate and number of roots,ranging from 78.7%to 88.2%and 5.5 to 6.5 roots respectively.The survival rate among treatments ranged from 86.5%to 99.1%.The stem diame of the cutting was the main factor affecting the rooting of Hippophae rham-noides.[Conclusion]For the propagation of Hippophae rhamnoides by cuttings,it is recommended to prioritize the method of softwood cuttings from 2-4 year old plants.And cuttings with a diameter of 6-9 mm show the best performance in a mixed substrate(pure substrate and yellow sand at a 1∶1 volume ratio)or in pure substrate.