为振兴甘肃大豆产业，选育适合甘肃省大豆玉米带状复合种植和复种大豆新品种，甘肃省农业科学院作物研究所等单位联合农业生物技术国家重点实验室(香港中文大学)以文丰7号为母本，Union(PI548622)为父本，经过有性杂交、系谱法选育出高产、早熟、宜机收大豆新品种陇豆7号。2022 — 2023年在甘肃省大豆新品种(系)区域试验中，平均折合产量为3 098.0 kg/hm2，较对照品种中黄30增产8.3%。2024年在甘肃省大豆新品种生产试验中，平均折合产量为3 538.7 kg/hm2，较对照中黄30增产8.6%。陇豆7号平均生育期120 d，单株粒重23.5 g，百粒重20.5 g，籽粒粗蛋白含量为403.7 g/kg，粗脂肪含量为205.8 g/kg。2025年通过了甘肃省农作物品种审定委员会审定(甘审豆20251002)。适宜在甘肃省中晚熟及晚熟品种类型区春播和适合大豆玉米带状复合种植以及陇东、陇南地区夏播复种。

To revitalize the soybean industry in Gansu Province and develop a new soybean variety suitable for soybean-maize intercropping and multiple cropping systems, the Crop Research Institute of the Gansu Academy of Agricultural Sciences, in collaboration with the State Key Laboratory of Agrobiotechnology(the Chinese University of Hong Kong), bred a new high-yield, early-maturing, and machine-harvestable soybean variety, Longdou 7. The cross was made using Wenfeng 7 as the female parent and Union(PI548622) as the male parent, followed by pedigree selection. In regional experiments for new soybean varieties (lines)conducted in Gansu Province during 2022 to 2023, the average equivalent yield of Longdou 7 was 3 098.0 kg/ha, 8.3% higher than the control variety Zhonghuang 30. In 2024 production experiment for new soybean varieties in Gansu, the average equivalent yield reached 3 538.7 kg/ha, 8.6% higher than Zhonghuang 30. The variety has an average growth period of 120 days, with a single-plant seed weight of 23.5 g and a 100-seed weight of 20.5 g. The grain contains 403.7 g/kg crude protein and 205.8 g/kg ether extract. Longdou 7 was approved by the Gansu Provincial Crop Variety Approval Committee in 2025 (Approval No. Ganshendou 20251002). It is suitable for spring sowing in the mid-late and late-maturing variety region of Gansu Province as well as for soybean-maize strip intercropping and summer multiple cropping in the east and southern parts of Gansu.

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甘肃省农业科学院院级科研计划项目(现代生物育种)(2024GAAS25)；中央引导地方科技发展资金项目(25ZYJA002)；甘肃省种业攻关项目高油高产大豆新品种选育及应用(GYGG-2024-10)；科技部、财政部国家科技资源共享服务平台项目(NCGRC-2024-22)。