早熟脐橙新品种‘青秋’

A New Early Ripening Navel Orange Cultivar‘Qingqiu’

脐橙新品种‘青秋’系由‘眉红’脐橙早熟变异株选育而成。果实卵圆形或长椭圆形,果形指数1.18,单果质量270 g,果皮橙红色,果肉脆甜化渣,风味浓郁,可溶性固形物含量12.9%,可滴定酸0.67%,维生素C 0.59 mg·mL^-1,可食率70.8%。自然坐果率高,丰产性强,嫁接苗定植第3年平均株产9.9 kg,高换树第3年平均株产23.4 kg。在重庆地区果实10月中下旬成熟。

’Qingqiu’,a new early ripening navel orange cultivar,was selected from’Meihong’navel orange.It’s fruits are oval or long oval,with a fruit shape index of 1.18.The average fruit weight is270 g.The peel is orange red and its surface is smooth.The flesh is crisp,sweet,and rich flavor.Regional trial for’Qingqiu’was performed at multiple locations in Chongqing.The results showed that its fruits ripen from the mid to late October and that the fruits are of good quality with soluble solids content of12.9%,total acid content of 0.67%,vitamin C content of 0.59 mg·mL^-1,and edible rate of 70.8%.Filed investigation indicated that’Qingqiu’has the characteristics of high fruit-setting rate and high yield.It had an average yield of 9.9 kg and 23.4 kg per tree in two years after planting and top grafting,respectively.