Breeding of a new spring Chinese cabbage cultivar Jinchun No.4
Jinchun No.4 is a new spring Chinese cabbage hybrid cultivar developed by crossing self-incompatible line C8 as female parent and 14Y-F as male parent.This variety has good bolting resistance and is a spring and autumn dual-pur-pose type of Chinese cabbage with medium maturity.If it is broadcast in the open field in autumn,the growth period is about 75 days,if seedlings are raised and cultivated in spring,they can be harvested 65 days after planting.The height of plant is 38.8 cm,with a spreading degree of 45.6 cm.The outer leaves are medium green,with furry hairs.The leaf head is shell shape,medium green,and the inner leaves are light yellow.The yield is 6 189.8 kg·667 m2,with 35.1 cm in head lenth,15.2 cm in head width,2.3 in sphericity index,and 2.3 kg in head mass.Jinchun No.4 is suitable for cultivation in spring and autumn in Yuncheng,Jinzhong,Shuozhou,and areas with similar ecological environments that produce Chinese cabbage.
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