Introduction performance and key culture techniques of two new mid-late maturing yellow-green and bagging-free apple varieties in Zhaotong
Zhongtian and Qinglin are two new mid-late ripening and yellow-green apple varieties introduced from Japan.The fruit of Zhongtian is short conical with average single fruit weight of 228.12 g.The fruit peel is yellow,and flesh is yellow-white with tender and crisp texture,moderate sour and sweet taste,and soluble solids content of 16.92％,skin hardness of 7.28 kg/cm2,titratable acid content of 0.41％and vitamin C content of 6.86 mg·100 g-1.The fruits of Zhongtian ripened at late August.The fruit of Qinglin is nearly circular with average single fruit weight of 217.34 g.The peel of fruit is green at harvesting,and gradually turns yellow afterwards.The flesh is yellow-white with hard and crisp texture and moderate sour and sweet taste,and soluble solids content of 16.63％,skin hardness of 9.82 kg/cm2,titratable acid content of 0.32％and vitamin C content of 6.48 mg·100 g1.The fruits ripened at Mid to late September.These two varieties have excellent fresh quality.Their fruits can be stored for 35～40 days at room temperature.These two new varieties have good bagging-free cultivation characteristics and better disease resistance,can supply the fruits to middle and high-end market between September and October.They are suitable for promotion and planting in Zhaoyang District of Zhaotong City,Yunnan Province and areas with similar climate.
万方数据
维普
