Nutrition Quality Analysis of Different Toona sinensis Cultivars in Dazhu County

To screen Toona sinensis(TS)cultivars which can meet requirements for different nourishment and provide references for TS breeding,the nutrition quality of 8 TS cultivars were evaluated by measuring the nutritious parameters including soluble protein,soluble sugar,fattiness and vitamin C.The fruits of different Toona sinensis cultivars contained significantly different nutrient contents,ranged from 5.22 mg·g-1~8.30mg·g-1 in soluble protein,0%~4.32% in soluble sugar,0.60%~9.57% in fattiness,53.80 mg·g-1~113.00 mg·g-1 in vitamin C.Among the cultivars evaluated,Hongxiangchun exhibited excellent nutrient quality with highest evaluation index of 13 and Hexiangchun reverse with poor score of 8.The significant difference among these TS cultivars indicated that there was great potential to improve the nutritious quality of TS by breeding.