Abstract:

To study the growth and nutrition value of different varieties of Cerasus hmilis in Minqin area, three varieties, ‘Nongda No.4’, ‘Nongda No.5’ and ‘Nongda No.6’ of C. hmilis, were introduced as materials, and local wild seedlings were used as control, the physiological and biological characteristics were observed, and the nutritional components were determined. The results showed that: (1) the leaf length, width and area of ‘Nongda No.5’ were larger than those of the control, ‘Nongda No.4’ and ‘Nongda No.6’. (2) The longitudinal diameter, transverse diameter and fruit weight of the three introduced varieties were higher than those of the control, and ‘Nongda No.5’ was larger than ‘Nongda No.4’ and ‘Nongda No.6’, and the fruit shape index of ‘Nongda No.5’ was lower than that of control, ‘Nongda No.4’ and ‘Nongda No.6’. (3) Among different C. hmilis varieties, ‘Nongda No.5’ had the highest calcium and protein contents and the lowest Vc content. (4) The amount of fruit was positively correlated with the number of branches and negatively correlated with the weight of single fruit. There was a significant negative correlation between leaf area and number of fruit branches. Thus, ‘Nongda No.5’ has the best performance of biological characters and is an excellent variety suitable for cultivating fresh food. Scientific conservation and management technology and proper number of fruit branches are the prerequisite for high quality and high yield.

Key words: Cerasus hmilis, biological characteristics, nutrient composition, superior varieties, high-yield culture