1Horticulture Institute，Chengdu Academy of Agriculture and Forestry Sciences，Chengdu 611130，Sichuan，China；2Agricultural and Rural Bureau of Jiangyang District，Luzhou 646000，Sichuan，China；3Chengdu Urban Modern Agricultural Industrial Technology Research Institute Co.，Ltd.，Chengdu 611130，Sichuan，China
Abstract：‘Chengjiang 11’is a new cowpea variety with mid-maturity developed by crossing‘227’as female parent and‘7104’as male parent through systematic breeding．In spring，the duration from sowing to harvest is 60-65 days．In autumn，its growing period is about 45 days．The whole growth period is about 114 days．As a sprawl plant，the first inflorescence sets at the 4-6th node．The flower is light purple in color，and newly grown pod is light green in color．The pods are straight and even．The pod length is 55-60 cm and single pod weight is 25-30 g．The pod pulp is thick，crisp and tender．Its protein content is 127.0 mg · kg-1 and crude fiber content is 1.95%．Its infused processing performance is excellent．The seed is of kidney shape and seed coat is reddish brown in color．It is tolerant to root rot and in fields its resistance to powdery mildew and virus disease is stronger than that of the contrast‘Zhecui No.4’．It can yield about 30 t · hm-2．It is suitable for open field cultivation in spring and autumn in Sichuan Province．
