A new extra early ripening and high quality pear cultivar——‘Zaosumi'

‘Zaosumi'is a new extra early ripening and high quality pear cultivar bred by crossing‘Qiyuesu'and‘Dangshan Suli'. Its fruit is ellipse with greenish-yellow skin and small dense dots,average fruit weight is 250 g;Its flesh is creamy white,very crisp tender,juicy,sweet,quality good;The juicy contains 13.1% soluble solid,0.096% titratable acid,7.84% total sugar,54.6 mg·kg-1Vitamin C,5.36 kg·cm²fruit firmness. The vigor of growth of‘Zaosumi'was middle,germinating capability was high,branch development capability and the production was higher. The fruit is ripening in early July in Zhengzhou,China. Its shelf life can reach 30 days,and it can be stored in cold storage conditions for 3 to 4 months. It can be planted in North of China,Northwest of China and Bohai Bay.