【摘要】 豫新55是采用游离小孢子培养双单倍体育种技术快速育成的大白菜一代杂种。早熟,生育期60～66d(天);合抱类型,株高35cm,开展度54cm;叶球高29cm,横径14cm,单球质量1.5～2.0kg,每667m2净菜产量3500kg左右,净菜率71.67%;高抗病毒病,抗霜霉病和黑斑病,适宜秋露地早熟种植,亦可作晚播或晚春种植。更多还原

【Abstract】 ‘Yuxin 55’is a new Chinese cabbage F1 hybrid.Its parents are self-incompatible double haploid lines induced by isolated microspore culture.It is early maturity.Its growth period is 60-66 days.The plant is 35 cm in height,54 cm in width.Its leaf head is 29 cm in height,14 cm in diameter.Its average head weight is 1.5-2.0 kg.The net yield is 52.5 t·hm-2.Its net head rate is 71.67 %.It is high resistant to virus,resistant to downy mildew and Alternaria leaf spot.It is suitable for early cultivation in open field in autumn.更多还原