The seeds,rootstocks,scions and different grafting combinations of different Chang-lin cultivars of Camellia oleifera were chosen as experimental materials.The difference and variation of morphological index of seeds and rootstocks were studied and the physiological and biochemical indexes of different grafting combinations were compared and analyzed to provide the basis for breeding good varieties of rootstocks,optimizing the grafting combinations and improving the survival rate of nurse seed graft.The res...