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大玉7号系云南省大理州种子管理站玉米育种中心课题组于1997～2009年历时13年精心选育而成的高产、稳产、抗病、耐旱、耐瘠、优质的杂交玉米单交种。该品种原名JH03-35,于2003年以DZ031为母本、330-4671为父本正式杂交组配而成;2004～2009年,先后参加玉米新品种鉴定试验、品比试验、区域试验、生产试验及抗病性鉴定、品质测试等系列试验遴选,一致表现出丰产稳产性好、抗病耐旱耐瘠性较强、遗传性状稳定、适
Dashu 7 Department of Yunnan Dali State Seed Management Station Corn Breeding Center Task Force from 1997 to 2009 lasted 13 years carefully selected from the high yield, stable yield, drought resistance, barren, high quality hybrid corn single cross . The variety formerly known as JH03-35, DZ031 in 2003 as the female parent, 330-4671 for the male parent of the hybrid from the composition; 2004 to 2009, has participated in the identification of new varieties of corn testing, product ratio test, regional testing, production Test and disease resistance identification, quality testing and other series of tests selected, consistently showed good yield and good stability, drought resistance and barren resistance, genetic stability, suitable