Soybean [Glycine max (L.) Merr.] lines R10‐2436 (Reg. no. GP‐439, PI 692971) and R10‐2710 (Reg. no. GP‐440, PI 692972) are high‐yielding and drought‐tolerant conventional germplasm released by the Arkansas Agricultural Experiment Station in February 2017. R10‐2436 and R10‐2710 have a relative maturity of 5.6 and 5.8, respectively. R10‐2436 is an F₄–derived line from the cross R01‐52F × R02‐6268F, and R10‐2710 is an F₂–derived line from R01‐52F × ‘USDA‐N7002’. In 6 yr of testing, R10‐2436 and R10‐2710 significantly outyielded the maturity group 5 check mean under moderate water‐deficit stress in Stuttgart, AR (2,893, 2,889, and 2,506 kg ha⁻¹, respectively) and were on a par with the checks under full irrigation in Stuttgart (4,644, 4,511, and 4,613 kg ha⁻¹, respectively) and in five additional irrigated Arkansas environments. The water‐deficit treatment consisted of normal irrigation until blooming, after which irrigation was suspended for the rest of the season. In greenhouse pot studies, both releases exhibited sustained nitrogen fixation during a dry‐down cycle. This trait was presumably inherited from their ancestor ‘Jackson’. R10‐2436 also exhibited slow wilting in multiple drought‐stressed environments in Arkansas and North Carolina, likely inherited from PI 416937. Because of their yield potential under drought and irrigation, as well as their good agronomic characteristics, R10‐2436 and R10‐2710 can be easily incorporated in applied breeding programs to transfer drought tolerance into elite high‐yielding cultivars.

中文翻译：

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适度水分胁迫下具有耐旱性高产的大豆种质R10-2436和R10-2710的配种

大豆[ Glycine max（L.）Merr。]品系R10-2436（Reg。no。GP-439，PI 692971）和R10-2710（Reg。no。GP-440，PI 692972）是高产和干旱地区。耐性常规种质由阿肯色州农业实验站于2017年2月发布。R10-2436和R10-2710的相对成熟度分别为5.6和5.8。R10‐2436是来自十字R01‐52F×R02‐6268F的F ₄衍生线，R10‐2710是来自R01‐52F×'USDA‐N7002'的F ₂衍生线。在6年的测试中，R10-2436和R10-2710在中等水分亏缺压力下，在美国斯图加特（2,893、2,889和2,506 kg ha ^-1的情况下）大大超过了成熟度5组检查平均值。，分别与斯图加特的全灌（4,644、4,511和4,613 kg ha ^-1）和五个其他灌溉阿肯色州环境。缺水处理包括正常灌溉直到开花，此后其余季节暂停灌溉。在温室盆栽研究中，在干燥周期中，两种释放均表现出持续的固氮作用。这种特征大概是从他们的祖先“杰克逊”继承而来的。R10-2436在阿肯色州和北卡罗来纳州的多种干旱环境中也表现出缓慢的枯萎趋势，很可能是从PI 416937继承而来的。由于在干旱和灌溉条件下它们的单产潜力以及良好的农艺特性，R10-2436和R10-2710可以很容易地纳入应用育种计划中，以将耐旱性转化为高产的优良品种。