河北省正定县岸下大队科技组1969年从光叶岱字棉中选得8个优良变异单株,经连年选育,1972年选出自选三号,1977年正定县委将其正式命名为正棉1号。特征特性:株型较松散,株高90一100厘米。茎秆粗壮,有少量茸毛。第一果枝着生在6—8节,下部果枝较短,果节分布均匀。叶中等偏小,透光较好, Zhengding County, Hebei Province, under the shore brigade technology group in 1969 from the light Yezai cotton selected eight excellent mutant single plant, after years of breeding, selected from the election on the 3rd in 1972, in 1977 the county will formally named Zhengding cotton number 1. Characteristics: more loose plant type, plant height of 90 to 100 cm. Stem stout, a small amount of hair. The first fruiting branch was born in 6-8, the lower fruiting branch is shorter, fruit section is evenly distributed. Medium-sized leaves, better light transmission,