Introduction experiment of Zhanhua Dongzao jujube

"Zhanhua Dongzao" is a precious and rare fresh fruit, which is produced in Zhanhua District. For more than ten years, Zhanhua District has been exploring the road of development for the benefit of mankind. Nowadays, this rare resource has finally moved from the courtyard to the field, and its scale has been expanding. 1in may, 1995, Zhanhua district was named as "the hometown of winter jujube in China" in the selection activity of "the first batch of 100 national characteristic products". Zhanhua Winter Jujube ripens late (10 year1mid-late October) and looks like an apple, so it is called "little apple". The average fruit weight is about 20g; Bright red ochre; Excellent taste, thin skin and crisp meat, fresh and juicy, sweet and delicious, rich in nutrition. According to the analysis of Beijing Institute of Nutrition Sources, Zhanhua Dongzao contains 19 kinds of amino acids and vitamins A, B, C and P, and contains 34-38% soluble solids and vitamin C352 CG/ 100 g, which is 70 times that of apples and 140 times that of pears compared with other fruits. Boyle, director of the Institute of Life Sciences, College of Horticulture and Agriculture, University of Oregon, and Professor Fuji Wumei called it "the first fruit in the world" after tasting it.