| The contents of total sugar and betaine in Lycium barbarum L from different regions of Ningxia at the first stubble and prosperous time were determined,in order to investigate the difference of contents in two picking stages and the correlation between contents and the soil fertility factors.The results showed that the contents in the first stubble fruits were both higher than those of prosperous time,however,the ratios of total sugar to betaine were of no significant difference,and the majority of ratios were appropriate.The vailable phosphorus and potassium were the key factors which affected the balance of total sugar and betaine. |