Introduction Performance of Aornia melanocarpa in 4 Districts of Tianjin

[Objectives]To enrich the species resources of Tianjin,Aornia melanocarpa was introduced and cultivated in 4 districts of Tianjin.[Methods]Two consecutive years of observation in 2018-2019 and research on the phenological period,high yield and fruit economic traits in 4 districts of Tianjin were carried out.[Results]The A.melanocarpa of the Linhai Jiayuan Experimental Site in Jinghai District has larger single fruit weight,higher nutrient composition,stronger plant growth,higher yield and storage stability,so this site can be used as a main planting base for large-scale planting of A.melanocarpa;the experimental site of Tianjin Agricultural University East Campus and the experimental site of Cuiping Lake Science Park of Jizhou District have a sour and astringent taste but relatively low yield,need to be processed as by-products in combination with market prices to determine whether to plant;the experimental site of Tianjin Agricultural University West Campus has low yield,small fruit and poor taste,and the planting effect is the worst among the four experimental sites.[Conclusions]From the overall economic traits of fruits,the fruits produced in the experimental site of Jinghai District have sufficient weight,high solid-acid ratio,and relatively high nutrient content,thus this experimental site can be used as large-scale cultivation base for A.melanocarpa.