鲜食中熟葡萄新品种紫金秋浓的选育

A new mid-ripening table grape cultivar Zijinqiunong

紫金秋浓是以魏可为母本、京秀为父本杂交选育出的中熟鲜食葡萄新品种,属欧亚种葡萄。果穗圆锥形,平均穗质量648.8 g;果粒椭圆形,平均果粒质量9.1 g,每果粒含种子2~3粒;果皮薄,无涩味,紫红色至红紫色;果粉中等厚;果肉脆,果汁较多,无香味;平均可溶性固形物含量(w,后同)20.3%,可滴定酸含量0.48%,浓郁酸甜风味。该品种植株生长势强,坐果率高,丰产,在南京地区避雨栽培条件下,3月下旬萌芽,5月上旬开花,8月中旬果实成熟。

Zijinqiunong is a new mid-ripening table grape cultivar derived from the cross between Wink(♀)and Jingxiu()in 2008.Seeding and propagation were carried out in 2009,and the plant was transplanted to the grape breeding nursery of Jiangsu Academy of Agricultural Sciences in 2010.It was initially selected in 2012.In 2013,it entered the secondary selection program.After regional adaptability test in multi-plot demonstration for 3 years(2016 to 2018),it was finally named Zijinqiunong.The shoot tip of Zijinqiunong is closed and erect.The tip hair density is sparse and has no anthocyanin.The shoot is semi-erect,and the dorsal of internode is red.The color of internode ventral is green with red strips.The surface of young leaves is yellowish green,and no erect hair is on the main veins of young leaves on the lower side.The creeping hairs between main veins on the lower side are sparse.The distribution of tendril is discontinuous,and the length is medium.The shape of the mature leaves is subcircular.Anthocyanins in the main veins on leaf surface are low.The petiole sinus is closed.The teeth of leaf margin are straight at both sides long.Number of leaf lobes is 5.The upper lateral sinus of leaf is overlapped.The mature branches are reddish brown.The flowers are bisexual and inflorescence usually is born at the second to third node.The clusters are cone,and the average weight is 648.8 g.The berries are oval shaped,with 2-3 seeds per berry,weighing averagely 9.1 g,and of attractive amaranth to purple color.The skin is thin and no acerbity,and the powder on the outer skin is medium thickness.The flesh is crisp and juicy with rich sour-sweet flavor.The average content of soluble solid in berry is 20.3%,and acid content is 0.48%.Berry quality is excellent.Flowering occurs in early May,similar to the major table grape varieties,and the berries ripen around middle August under the condition of sheltered cultivation in Nanjing area.The number of inflorescences is 1.6.Winter bud break rate is 92.7%and fruiting branches rate is 92.1%.The variety is vigorous and has higher fruit-setting rate and,good harvest.