关键词: 烤烟, 烤烟, 土壤肥力, 主植烟区, 贵州

Abstract: To screen hawthorn cultivars which meet requirements for different nourishment and provide references for hawthorn breeding, the nutrition quality of 11 hawthorn cultivars were evaluated by measuring the nutritious parameters including total acidity, soluble protein, soluble sugar, and vitamin C. The fruits of different hawthorn cultivars contained significantly different nutrient contents, ranging from 1.625%~3.061% in total acidity, 5.165~8.714mg/g in soluble protein, 6.610~28.110% in soluble sugar, 55.87~139.70 mg/g in vitamin C. Among the cultivars evaluated here, Yanranghong exhibited excellent nutrient quality with highest evaluation index of 13 and Changkou reverse with poor score of 7. The significant difference among these hawthorn cultivars indicated that there is great potential to improve the nutritious quality of howthorn by breeding.