Evaluation of Cutting Growth and Rooting Potentials of Different Mulberry Varieties
This study investigated the effects of ABT-1,IBA,and IAA hormone treatments on the propa-gation of ten mulberry varieties by cutting. Seven cutting indexes of every variety were comprehensive evaluated using queuing scoring and formula scoring,in combined with cluster analysis to identify superior mulberry varieties with enhanced rooting capability,and provide theoretical guidance for large-scale propa-gation of cutting seedlings of mulberry. The results indicated that the application of various hormones improved the survival rate,new shoot index,and root index across the ten mulberry varieties. Significant differences in the survival rates were observed among different varieties,while new shoot index and root index were significantly or extremely significantly influenced by variety,hormone type and their interac-tion. Under different hormone treatments,Xinjianchi exhibited the highest mean survival rate (78.00％) and root number (9.35 roots),Zu8312 exhibited the highest mean value of new shoot length (54.08 cm),new shoot weight (31.35 g) and root diameter (1.47 mm),Baokan had the highest root weight (17.36 g) and Shuangtouheyebai had the highest mean total root length (2385.46 cm). Correlation analysis revealed a significant positive correlation between survival rate and root number. Furthermore,an extremely signifi-cant positive correlation was observed between new shoot index and root index. A comprehensive evalua-tion using queuing scoring and formula scoring methods ranked the ten mulberry varieties by rooting abili-ty as follows:Zu83122,Xinjianchi,Shuangtouheyebai,Yidashoumusang,Baokan,60178,Tuosang,Huosang,Shanxitiansang,Kuisang. Cluster analysis categorized these varieties into three groups:easy-to-root,relatively easy-to-root,and difficult-to-root. In conclusion,Zu81322 and Xinjianchi are recommen-ded as preferred varieties for large-scale cutting seedling propagation due to their high average survival rates,and overall strong performance across various cutting growth indexes.
万方数据
维普
