番茄新品种龙番2号的选育

Breeding of a new tomato cultivar Longfan No.2

龙番2号是以自交系TMX255-1为母本、TMX2535-4为父本杂交选育而成的杂交1代番茄新品种。该品种中晚熟,属无限生长型,长势强,首花节位8~9节,单式花序,叶片下垂,果实纵径6.7 cm、横径8.2 cm,果形指数0.82,大红果,单果质量200 g左右,果实硬度中等,幼果无青肩。晋中地区春提早塑料大棚栽培全生育期150 d左右,果实发育期40 d左右,可溶性固形物含量(w,后同)6.1%,番茄红素含量41.0 mg·kg^(-1),维生素C含量20.1 mg·100 g^(-1),平均667 m^(2)产量8800 kg左右。适宜在山西省忻州市、吕梁市、晋中市、朔州市、长治市等地区春提早、秋延后塑料大棚种植。2020年通过农业农村部非主要农作物新品种登记。

The new tomato F_(1) hybrid Longfan No.2 is developed by inbred line TMX255-1 as female parent and TMX2535-4 as male parent.This variety is middle-late maturing and infinite growth type.It has strong growth vigor with drooping leaves.The first female flower node order was at 8-9 th node.It has simple inflorescence.The average longitudinal diameter of the fruit is 6.7 cm,and the transverse diameter is 8.2 cm.The fruit shape index is 0.82.The single fruit mass is about 200 g.The fruit has moderate hardness,and the young fruit has no shoulder.In Jinzhong area,early spring cultivation in plastic greenhouse,the whole growth period is about 150 days,the fruit development period is about 40 days,and the content of soluble solid is 6.1%,the content of lycopene is 41.0 mg·kg^(-1),the content of vitamin C is 20.1 mg·100 g^(-1),the yield per 667 m^(2) is about 8800 kg.This variety is suitable for planting in plastic greenhouses in Xinzhou city,Lüliang city,Jinzhong city,Shuozhou city,Changzhi city and other areas of Shanxi province.