大白菜“黔菜1号”新组合的选育

Breeding of Chinese Cabbage New Conbination Qian Cai No.1

大白菜黔菜1号是采用自交不亲和系选育及杂种优势规定的方法选育出的一代杂种。经品比和区试表明：①抗病性强，田间鉴定霜霉病发病率较对照低6．7％．②丰产稳产，小区品比试验历年平均亩产净菜3160．8kg，比对照增产7．6％，两年区代平均亩产净菜3223．8kg，比对照增产12．5％．③品质佳．叶球浅绿，叶多帮少，叶帮比较对照高0．3，符合群众喜食叶部的膳食特点．④商品性状优，成熟后在田间可放置较长时间．便于待价而沽和调节市场供应．

Chinese Cabbage Qian Cai No. 1 has been bred by self in compatible line and advantages of hybrid. Through varieties test and regional test, the results show as follow: ① good diseases resistance, infecting rate of downy mildew is 6. 7% lower than the Cheek (Jin Cai No. 3). ② high and stable yield, average net yield of years per 667m2 being 3160. 8kg in plot is 7. 6% higher than the check; average net yie1d per 667m2 for two years being 3223.8kg in regional test is 12. 5% higher than Jin Cai No. 3 (check). ③ good quality, light green leave head. Pulp of leaves being more than bone of leaves, rate of pulp to bone is 0. 3 higher than check, lt fits the customers' need that prefer pulp to bone. ④ good rnarketing characterist:cs, lt can be placed in the field for longer time, in order that lt can be privided for the market auording to the price and need .