抗番茄黄化曲叶病毒耐热番茄新品种农1305的选育

农1305是采用夏季保护地田间高温胁迫鉴定和分子标记方法选育的,以自交系TB123为母本、以N-136为父本配制而成的抗病耐热番茄一代杂种。无限生长类型,生长势较强。在夏季保护地中能正常生长发育,植株茎秆粗壮,不易徒长,田间长势整齐一致,叶色较深,叶片肥厚,始花节位为第8片叶左右,花穗间隔3片叶,高温逆境下坐果能力强。果实粉红色,圆形,单果质量250 g左右。果面光滑,果硬,耐贮运,花蒂小,畸裂果率低,果色艳丽,商品性好。每667 m2产量5 700kg左右。含有抗番茄黄化曲叶病毒病的Ty-1、Ty-3a基因和抗灰叶斑病的Sm基因,综合抗性强。适于我国北方各地晚春及夏季保护地种植。

A New Tomato F1 Hybrid with Resistance to Tomato yellow leaf curl virus and Tolerant to High Temperature —‘Nong 1305’

‘Nong 1305’is a tomato hybrid selected and bred by protected field trial in summer together withmolecular marker method．It is a high temperature tolerant tomato F1 hybrid developed by crossing inbred line‘TB123’as female parent and‘ N-136’as male parent．It is of indeterminate growth type with strong growthvigour．It can normally grow and develop in protected fields in summer．The plant stem is thick and strong withuniform growth in fields．Its leaves are dark in color and the leaves are fleshy．Its first inflorescence is settingat the 8th nodes．Its fruit setting ability is strong under high temperature stress．Its fruit is pink in color and ofround shape．The single fruit weight is about 250 g．It has smooth fruit surface and hard fruit．It is tolerant tostorage and transportation．Its pedicle is small and the abnormal fruit rate is very low．Its yield is about 85.5 t·hm^-2．This variety contains Ty-1，Ty-3a genes，which are resistant to Tomato yellow leaf curl virus（TYLCV）and Sm gene，resistant to gray leaf spot．It is suitable for cultivation in protected fields in northern China in latespring and summer．