THE MEASURE FOR MAINTAINING MOISTURE AND TECHNIQUE FOR PRUNING TO GRAFT TREE OF MASSON PINE

Grafting with sheath is an effective measure to increase survival rate of graft tree of masson pine. Using sheath in grafting, the moisture between scion and stock would be close to saturation, and so procedure of healing accelerated and survival rate increased. The results showed a 20% increase in survival rate of graft tree with sheath over without sheath.The growth of tip was heavily out of that of lateral branch, which was one of the most important cause of hindering growth of new tip of graft tree. Thus, if it did no harm to the growth of new tip, nutritive branches of stock would be controlled and pruned.