多抗高品质口感型番茄新品种京番309的选育

A New Multi-resistant High-quality Fruit Tomato F1 Hybrid—‘Jingfan309’

京番309是以自交系TB0286为母本,以自交系TB0619为父本配制而成的多抗粉果口感型番茄一代杂种。无限生长类型,早熟;果实圆形,有绿肩,单果质量80~120 g,口感酸甜,风味浓郁,有香气。可溶性固形物含量7.1%,番茄红素含量31.0 mg·kg^(-1),VC含量158.2 mg·kg^(-1)。具有Ty1、Ty3a、Mi-1、Sm抗性基因位点,高抗TYLCV、南方根结线虫,抗To MV、灰叶斑病。每667 m^(2)产量4500 kg左右,适宜北京、天津、山东、河北、辽宁等北方地区保护地种植。

‘Jingfan 309’is a multi-resistant,pink-fruited tomato F1 hybrid with delicious taste,which is developed by crossing inbred line‘TB0286’as the female parent and the inbred line‘TB0619’as the male parent.The hybrid belongs to indeterminate growth type and is early-ripening.The fruit is round type with green shoulder.Its single fruit weight is 80-120 g.It tastes sour and sweet,with rich flavor and aroma.The soluble solids content is 7.1%,lycopene content is 31.0 mg·kg^(-1),and VC content is 158.2 mg·kg^(-1).‘Jingfan 309’harbors Ty1,Ty3a,Mi-1 and Sm resistance loci.It is resistant to ToMV and gray leaf spot disease,high resistant to TYLCV and southern root knot nematode disease.Its yield is about 67.5 t·hm^(-2).It is suitable for protected cultivation in northern China,such as Beijing,Tianjin,Shandong,Hebei and Liaoning.