Breeding technique for Cerasus yunnanensis 'Guangzhou' by grafting

ZHU Jun;YE Xiao-ling;HU Xiao-min;ZHENG Ke-yuan;SHI Fang-yuan;LIU Chun-lin;Tianshi Group Co.Ltd.;Wangdi Landscape Architecture Co.Ltd.;Mangrove Ecological Technology Co.Ltd.;Shaoguan Wangdi Cerasus Planting Co.Ltd.;

C.yunnanensis 'Guangzhou';;C.campanulata;;grafting propagation;;cut-grafting;;cultivation method

Grafting comparative experiments were carried out by different grafting time,stocks,scion segments,grafting techniques and cultivation methods,using Cerasus campanulata,C. speciosa,C. campanulata‘Double-flowered' as stocks and C. yunnanensis‘ Guangzhou' as scion. Results showed that the best grafting time of C. yunnanensis‘ Guangzhou' was January in Guangdong Province,the survival rate after 60 days was 91.67%,one year later the height of trees was 143.34 cm. The good choice of breeding C. yunnanensis‘ Guangzhou' was using the 1-year-old seedlings of C. campanulata and C. campanulata‘ Double-flowered' as stock,the survival rates respectively was 94.58% and 93.75%,and the heights of trees were 151.54 cm and 152.27 cm. Different parts of scion had a little effect on the survival rate and height,while the terminal buds and adjacent two sections had better effect,the survival rate was 92.92% and the height was 152.54 cm. Cut-grafting was the best choice among different grafting techniques,the survival rate reached 92.08%,and the height of trees can be up to 154.13 cm. The methodwith trees planted in land and covered with agricultural films was the best,the survival rate was 95.42% and the height was 169.63 cm.