摘要：随着“大豆振兴计划”实施和种植结构调整，近年来甘肃省大豆种植面积呈增加趋势，为了给甘肃大豆生产提供丰产性、广适性和抗病性大豆品种，以Strong为母本、吉育71为父本，通过有性杂交、系谱法选育出了大豆新品种陇豆4号。该品种在2020—2021年的甘肃省大豆品种（系）区域试验中，2a12点（次）平均折合产量为2538.45kg/hm2，较对照品种陇豆2号增产7.22%。在2022年的甘肃省大豆品种（系）生产试验中，5个试点平均折合产量为2941.50kg/hm2，较对照品种陇豆2号增产4.75%。陇豆4号春播生育期平均为137d，与对照陇豆2号相同。株型半开张，亚有限结荚习性。株高101.4cm，单株有效荚数48.3个，单株粒重17.3g，百粒重19.9g。籽粒圆形，外观品质好，完全粒率高，籽粒含粗蛋白395.0g/kg、粗脂肪189.2g/kg。具有产量高、抗性好、适应性广等特性，于2023年通过甘肃省农作物品种审定委员会审定。适宜在甘肃省干旱、半干旱雨养农业区和河西绿洲灌区非保灌区的中晚熟、晚熟大豆种植区春播种植。关键词：大豆；新品种；陇豆4号；选育；栽培技术中图分类号：S565.1文献标志码：A文章编号：2097-2172（2023）07-0603-04doi：10.3969/j.issn.2097-2172.2023.07.004BreedingReportofNewSoybeanVarietyLongdou4ZHANGYanjun1,2,WANGXingrong1,2,LIYue1,2,WANGHongmei1,2,WANGChang1,2,GOUZuowang1,2,QIXusheng1,2［1.CropsResearchInstitute,GansuAcademyofAgriculturalSciences,LanzhouGansu730070,China;2.KeyLaboratoryofCropGeneResourcesandGermplasmInnovationinNorthwestcoldandAridRegions(JointlyEstablishedbytheMinistryofAgricultureandRuralAffairsandGansuProvince),LanzhouGansu,730070,China］Abstract:Withtheimplementationofthe'SoybeanRevitalizationPlan'andtheadjustmentofplantingstructure,thesoybeanplantingareainGansuProvincehasshownanincreasingtrendinrecentyears.Inordertoprovidenewsoybeanvarietieswithhighyieldpotentials,wideadaptability,anddiseaseresistanceforsoybeanproductioninGansuProvince,Longdou4,anewsoybeanvariety,wasbredbycrossingandpedigreemethodwithStrongasthefemaleparentandJiyu71asthemaleparent.From2020to2021,datafromtheregionalexperimentofsoybeanvarieties(lines)inGansuProvinceshowedthattheaverageyieldofLongdou4,from12sitesin2a,was2538.45kg/hawhichwas7.22%higherthanofthecontrolva...
