Abstract：‘Chengjiang No.7’is a new early variety of cowpea developed by crossing early maturing line 31 as female parent with‘Chengjiang No.3’as male parent after system selection.The first anthotaxy occurs at 2nd-4th node on the main vine.In spring,the duration from sowing to harvest is 45-50 days.In autumn,its growing period is 35-40 days.Its pod is light green,60-65 cm by length.Its yield can reach 30.0-37.5 t·hm-2.The first harvest accounts for over 50 % of the total.It comes to the market with concentrate and high efficiency.It is suitable to be cultivated in the Yangtze River Valley in spring,summer and autumn.
