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| A New Spring Chinese Cabbage F1 Hybrid-‘Qingyanchunbai No.1’ |
| YANG Xiao-yun,ZHANG Shu-xia，ZHANG Qing-xia,SI Chao-guang,WANG Yuan |
| Qingdao Academy of Agricultural Sciences,Qingdao 266100，Shandong,China) |
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Abstract ‘Qingyanchunbai No.1’is a new spring Chinese cabbage bred by crossing male sterile line A29 with self incompatible line A-21-7-13-s-1.Its growing period is about 60 days.It is tolerant to immaturity bolting.It is about 36 cm in plant height,55 cm in plant spread,its outer leaf is dark green.Its head shape is ovate,sphericity index is 1.5,and average head weight is 2.0-2.5 kg.Its yield is about 105 t·hm-2.It has been extended to Shandong,Shanxi,Shaanxi,Henan,Guizhou and Yunnan etc.Its extension area is 300 hm2.
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Received: 25 May 2009
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