豫玉29,原名周单4号,是由河南省周口地区农科所于1994年用自选系9501作母本,8340选4-1作父本组配而成的高产、稳产、多抗玉米杂交种。1999年4月通过河南省农作物品种审定委员会审定命名为豫玉29。1　产量表现1996～1997年两年参加河南省夏播区域试验(直播组)平均单产7329ｋｇ/ Yuyu 29, formerly known as Zhou Dan 4, is a high yield, stable yield, multi-resistance corn produced by Henan Agricultural Science Institute of Zhoukou District in 1994 with the optional line 9501 as the female parent, 8340 selected 4-1 as the father of the group Hybrids. In April 1999, it was approved by Henan Crop Variety Approval Committee named as Yuyu 29.1 Production performance From 1996 to 1997, the average yield of participating in the summer sowing experiment of Henan Province (direct seeding group) was 7329kg /