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一、来源及产量表现: 郑州7297系河南省农林科学院小麦所用(毛阿夫×郑州6号等四父)的杂种第二代与丰产3号×(碧_1×阿玛)品种杂交育成。原系谱号为7297-3-3-2。于七八年首次参加鉴定测产,产量居首位,比对照种丰产3号增产17.2％。八○至八二年在郑州省院连续三年区域试验,平均比对照种7023增产25.6％。该品系适应性较好,在三年全省中肥联合区域试验(亩产500—700斤水平)下,五十三次试验,五十二次增产,平均比对照种7023增产16.5％,
Source and yield performance: Zhengzhou 7297 Department of Agriculture, Forestry and Fisheries Sciences of Henan Province (Maaf × Zhengzhou No. 4, etc. Fourth generation hybrids) and the bumper crop No. × (Bi _1 × Ama) breeds cross breeding. The original pedigree number is 7297-3-3-2. For the first time in seven or eight years to participate in the identification of measurable yield, the highest output, than the control of high yield 3 increased 17.2%. Eight years to eight years in Zhengzhou provincial hospital for three consecutive years of regional trials, an average of 25% increase over the control 7023. The strain has good adaptability. Fifty-three tests and fifty-two yield tests increased yield by 16.5% compared with the control 7023 in three years.