关键词: 麻核桃, 品种

Abstract:

‘Jingyi 2’is a new cultivar of Juglans hopeiensis selected from wild seedling resources in Yanqing，Beijing. The shape of nut is approximately round and the bottom is wide and flat. The apex of nut is round and lightly tine. The average diameter of horizontal is 3.86 cm，and the max one can get to 4.62 cm. The average diameter of vertical and flank are 3.57 cm and 3.50 cm，respectively. The nuts range in weight from 16.3 g to 24.5 g，and average 19.3 g. The thickness of shell is 3.5 mm. Kernel rate average 8.9%. Empty shell rate average 26.7%. The suture line protrudes highly，and combines tightly. The color of shell is light，the concave is relatively deep，and the texture is very beautiful. The nut’s quality of art and exercise is excellent. It has average yield that average 14.2 nuts for 5-year top grafting tree. Its resistance to cold and disease is high.

Key words: Juglans hopeiensis, cultivar