Test on clonal cutting propagation ofToona ciliata var. pubesens
Rooting test of cutting propagation was carried out with clone epicormic branch inToona ciliata var.pubesens cutting orchard. The results show that (1) Roots ofToona ciliata var.pubesensclone shoot cutting propagation originated from both two rooting types: callus tissue and cortex part; Roots of 80% tested clones (8 in 10) mainly originated from cortex and other 2 clones appeared both rooting types. (2) The root system effect index of species TC01 clone ofToona ciliata var.pubesens was the highest (36.5), and the rooting ability (REI) ofToona ciliata var.pubesensclone twig had a positively significant correlation with rooting rate. (3) Under the conditions of cooling by shading, keeping humidity by covering agriculturalfilm and maintaining natural temperature, the highest rooting rate ofToona ciliata var.pubesens clone shoot cutting propagation occurred in June, September and early October.
Toona ciliata var.pubesensclonecutting propagationrooting rate