樱桃番茄新品种坚强2号的选育

A New Cherry Tomato F_(1)Hybrid-‘Jianqiang No.2

坚强2号是以高代自交系Tw4-2-5-7-8-8-12-4-4-8-3为母本,以TW-81-7-16-36-7-7-4-3-8-1为父本配制而成的晚熟樱桃番茄一代杂种。无限生长类型,坐果能力强;果实椭圆形,果柄较短,果肉厚、较硬,果形美观整齐,幼果有绿肩,成熟果红色,单果质量18 g左右,可溶性固形物含量8.7%,番茄红素含量206.0 mg·kg^(-1),VC含量198.6 mg·kg^(-1);含有番茄黄化曲叶病毒病(TYLCV)抗性基因Ty-2、晚疫病抗性基因Ph-3和烟草花叶病毒病(TMV)抗性基因Tm-2a,抗TYLCV、TMV,耐贮运,每667 m^(2)春茬产量3400 kg左右,秋茬产量3300 kg左右,适宜广西百色等地秋冬季种植。

‘Jianqiang No.2’is a late-maturing cherry tomato F_(1)hybrid,which is made up of highgeneration inbred line‘Tw4-2-5-7-8-8^(-1)2-4-4-8-3’as female parent and‘TW-81-7^(-1)6-36-7-7-4-3-8^(-1)’as male parent.Its growth is limitless and it has strong fruit setting ability.The fruit is oval,stalk is short,and young fruit has green shoulders.The mature fruit is red,and the weight of single fruit is about 18 g.Its soluble solids content is 8.7%,lycopene content is 206.0 mg·kg^(-1),VC content is 198.6 mg·kg^(-1).It contains tomato yellow leaf curl virus(TYLCV)resistance gene Ty-2,late blight resistance gene Ph-3 and tobacco mosaic virus(TMV)resistance gene Tm-2a.It is resistant to TYLCV and TMV.Its yield is about 51.0 t·hm-2 in spring and 49.5 t·hm-2 in autumn,which is suitable for planting in Baise,Guangxi in autumn and winter.