越冬松花菜新品种松不老130的选育OA

Songbulao130 is a new F1 hybrid of loose-curd cauliflower developed by crossing cytoplasmic male sterile line CRP-20E-208 as female parent and inbred line CRP-36EC-2 as male parent.It is of late-maturity and better cold tolerance.It takes about 130 days from transplant to harvest in protected fields in North China and about 145 days at open fields in Yangtze Valley.It is an erect plant and has strong growth.The head is hemispherical with a diameter of 30 cm and a longitudinal diameter of 15 cm and round in shape with white color.The grains of its head are smaller,loose and even.The average weight of a single head is about 1.3 kg in pro-tected fields and 1.7 kg in open fields.The commodity quality is excellent with a sweet taste and tender flavor.Its average yield in overwinter cultivation in the Yangtze Valley is about 49.5 t·hm-2.It has a stronger resistance to black rot and downy mildew than the control variety Nanmu 160.It is not easy to produce curd riceyness and purple surface under low temperature and weak light.It is suitable for overwinter cultivation in Shanghai,Jiangsu,Hubei,Henan,Chongqing Provinces,etc.