为了评价大豆新品系的适应性、丰产性和抗旱性，2021年对20个大豆新品系在银川、张掖和庆阳3个生态区进行多点联合鉴定，分析其在不同环境下的生育期、产量、品质及抗旱性。结果表明，20个大豆新品系在庆阳试点均表现早熟，而在银川试点相对晚熟。折合产量在银川试点最高(4 284.69 kg/hm2)，在庆阳试点最低(1 871.01 kg/hm2)。庆阳试点的蛋白质含量最高(405.0 g/kg)，张掖试点的粗脂肪含量最高(208.3 g/kg)。其中，6个品系在成株期表现为极强或强抗旱性，加权抗旱系数与籽粒蛋白含量呈极显著正相关(γ=0.612 9，P=0.003 1)，蛋白质含量与脂肪含量呈负相关。综合分析，陇豆655-2和陇豆609在不同生态区适应性和丰产性均好，但抗旱性较差，适合在灌区种植。

In order to evaluate the adaptability, yield and drought resistance of the new soybean lines, 20 new lines were jointly identified at multiple points in three ecological zones, Yinchuan, Zhangye and Qingyang, in 2021 to analyze the fertility, yield, quality and drought resistance of soybean lines under different environments. The results showed that the 20 new soybean lines showed early maturity in Qingyang and relatively late maturity in Yinchuan. Yinchuan had the highest equivalent yield(4 284.69 kg/ha) and Qingyang had the lowest number(1 871.01 kg/ha). The highest protein content(405.0 g/kg) in Qingyang and the highest crude fat content(208.3 g/kg) in Zhangye were detected. Six lines showed very strong or strong drought resistance at the adult stage. The weighted drought tolerance coefficient was highly significantly and positively correlated with protein content(γ=0.612 9, P= 0.003 1) and protein content was negatively correlated with fat content. Through comprehensive analysis, Longdou 609 and Longdou 655-2 had good adaptability and productivity in different ecological zones, but had poor drought resistance and are suitable for planting in irrigation areas.

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国家大豆产业技术体系兰州综合试验站(CARS-04-CES18)；甘肃省农作物种质资源普查与收集项目(GNKJ-2021-44)；中央引导地方科技发展专项项目；2022年省级重点人才项目(农作物种质资源保护利用与人才培养)；甘肃省农业科学院科研条件建设及成果转化项目(重点研发计划)(2021GAAS04)。