Abstract:

In this study，the inner quality of different genotypes and the quality and volume of aroma were investigated by way of grey correlation degree.The result indicated that : The closest factors to the quality of aroma were the total nitrogen, nicotine contents, protein, total sugar, reducing sugar, followed by potassium, schmuck value, chloride, total sugar/ nicotine contents and K/CL. The closest factors to the volume of aroma were the total nitrogen, protein, nicotine contents, total sugar, potassium, followed by schmuck value, reducing sugar, chloride, total sugar/ nicotine contents and K/CL.