The effects of canopy density, storage time of scion, slope position and different variety of scion on survival percentage and mass growth of young sprouts of crown grafting were studied in this paper, with Camellia oleifera as rootstock, Camellia oleifera and Camellia yuhsienensis h.h.hu as scion. The results showed that the graft survival percentage increased with the increase of canopy density. The shorter storage time was, the high the graft survival percentage. The graft survival percentage of plant growed at mountainside reached as high as 82.3%, which was higher than the plant growed at peak and foot obviously. The graft compatibility was small between Camellia oleifera and Camellia yuhsienensis h.h.hu. Partial correlation analysis showed that the effect of canopy density on the survival percentage of Camellia oleifera grafting crown was the greatest, followed by the storage time of scion, and the effect of slope position and variety was small. It’s obvious that the slope position influence the mass growth of young sprouts.

Introduced the DTOPSIS basic principle and method, DTOPSIS was employed for multi-trait 11 main characters on 10 clones. The results indicated that the comprehensive scores of Chaling 744, Chaling 784 and Chaling 766 were in the top grade, it was 0.8171, 0.7382 and 0.7029, respectively. The appraisal results was consistent with the variety actual performance. This method was more reasonable than that only using yield analysis.