皖青512号豇豆是界首县从地方矮生豇豆中选出的变异单株,经多年系统选育而成。因其嫩荚青色,春播农历5月12日前后上市,故定名为皖青512号。经1986年、1987年、1988年三年的试验,其产量各平均较地方品种五月鲜增产19.1％,平均荚果长较五月鲜增加21.8厘米;采收期较集中,较之豇28—2的前期产量增加9.2％。由于皖青512号豇豆表现早熟、荚长、高产、抗病,并适合套种,近几年已在河南、江苏、山东、浙 Wanqing No. 512 cowpea is a mutant strain selected from local dwarf cowpea in Jieshou County, which was selected by many years of systematic breeding. Because of its tender pods blue, spring broadcast Lunar New Year on May 12 before and after the listing, so named as Anhui Green 512. After three years of experiment in 1986, 1987 and 1988, the average output of each trial was 19.1% higher than that of the local varieties in May, and the average pod length increased 21.8 cm compared with May. The harvesting period was more concentrated than the 28- 2 pre-production increased by 9.2%. As Anhui Green No. 512 cowpea performance precocious pods long, high yield, disease resistance, and suitable for intercropping, in recent years in Henan, Jiangsu, Shandong, Zhejiang