Abstract Soybean seed tends to lose its quality property if kept in inappropriate storage conditions. The aim of this work was to evaluate the effect of different oxygen (O2) and carbon dioxide (CO2) partial pressures, combined with different temperatures on the soybean seed physiological potential maintenance. In 2017, seed of the cultivars 8473 RSF and TECIRGA 6070RR were stored for 7 months under: [1] ambient air; controlled atmosphere (CA) with [2] 1 kPa O2 + 0.04 kPa CO2; [3] 2 kPa O2 + 0.04 kPa CO2; [4] 2 kPa O2 + 30 kPa CO2; and [5] 2 kPa O2 + 80 kPa CO2. In 2018, seed of NA 5909 RG and FEPAGRO 37RR were stored for 7 months under the following conditions: [1] ambient air; and CA with [2] 1 kPa O2 + 0.04 kPa CO2; [3] 1 kPa O2 + 15 kPa CO2; [4] 1 kPa O2 + 30 kPa CO2; [5] 2 kPa O2 + 0.04 kPa CO2. In both years the storage conditions were conducted at three temperatures (20, 25 and 30 °C). The seed were stored with moisture content between 11 and 11.5. The reduction of the O2 until 1.0 kPa maintained higher germination, however, storage above 25 °C is not recommended. High CO2 partial pressure did not have additional effects on physiological quality conservation compared to solely low O2. Seed of 8473 RSF stored at 25 and 30 °C resulted in low germination, regardless of the CA condition. NA 5909 RG reached 80% of germination, when CA was used, regardless of temperature. The ambient air did not maintain the seed physiological quality when stored at 25 and 30 °C and CA may efficiently maintain the physiological quality of soybean seed after 7 months, even in the higher temperature for NA5909 RG, but not for the other cultivars.

中文翻译：

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气调贮藏对大豆种子生理品质的影响

摘要 大豆种子在不适当的储存条件下容易失去其品质特性。这项工作的目的是评估不同的氧气 (O2) 和二氧化碳 (CO2) 分压，结合不同温度对大豆种子生理潜力维持的影响。2017 年，8473 RSF 和 TECIRGA 6070RR 品种的种子在：[1] 环境空气中储存了 7 个月；[2] 1 kPa O2 + 0.04 kPa CO2 的受控气氛 (CA)；[3] 2 kPa O2 + 0.04 kPa CO2；[4] 2 kPa O2 + 30 kPa CO2；[5] 2 kPa O2 + 80 kPa CO2。2018年，NA 5909 RG和FEPAGRO 37RR种子在以下条件下储存7个月：[1]环境空气；和 CA 与 [2] 1 kPa O2 + 0.04 kPa CO2；[3] 1 kPa O2 + 15 kPa CO2；[4] 1 kPa O2 + 30 kPa CO2；[5] 2 kPa O2 + 0.04 kPa CO2。在这两年中，储存条件均在三个温度（20、25 和 30 °C）下进行。种子在含水量为 11 到 11.5 的情况下储存。将 O2 减少至 1.0 kPa 可保持较高的发芽率，但不建议储存在 25 °C 以上。与单独的低 O2 相比，高 CO2 分压对生理质量保护没有额外影响。无论 CA 条件如何，8473 RSF 的种子在 25 和 30 °C 下储存都会导致低发芽率。无论温度如何，当使用 CA 时，NA 5909 RG 都达到了 80% 的发芽率。环境空气在 25 和 30 °C 下储存时不能保持种子的生理质量，CA 可以在 7 个月后有效地保持大豆种子的生理质量，即使在 NA5909 RG 的较高温度下，但对于其他品种则不然。