Shoot dry matter (g plant⁻¹), photosynthetic pigment content (g m⁻²), relative water content (RWC; %), the two-way analysis of variance and the coefficient of variance of amaranth plants grown under low nitrogen and sufficient water supply (LN+W), low nitrogen and low water supply (LN-W), high nitrogen and sufficient water supply (HN+W), and high nitrogen and low water supply (HN-W) after six days of water stress and 24 h of rehydration. the values are the mean±SE of 10, 6, and 5 plants for shoot dry matter, photosynthetic pigments, and RWC, respectively.

Shoot dry matter (g plant−1), photosynthetic pigment content (g m−2), relative water content (RWC; %), the two-way analysis of variance and the coefficient of variance of amaranth plants grown under low nitrogen and sufficient water supply (LN+W), low nitrogen and low water supply (LN-W), high nitrogen and sufficient water supply (HN+W), and high nitrogen and low water supply (HN-W) after six days of water stress and 24 h of rehydration. the values are the mean±SE of 10, 6, and 5 plants for shoot dry matter, photosynthetic pigments, and RWC, respectively.本数据集涵盖经6天水分胁迫与24小时复水后，在低氮充足供水（Low Nitrogen + Sufficient Water, LN+W）、低氮缺水（Low Nitrogen + Low Water, LN-W）、高氮充足供水（High Nitrogen + Sufficient Water, HN+W）与高氮缺水（High Nitrogen + Low Water, HN-W）四种水肥组合处理下生长的苋属植物的相关数据，具体包括地上部干物质（单位：g·株⁻¹）、光合色素含量（单位：g·m⁻²）及相对含水量（Relative Water Content, RWC; %）；同时包含各处理组下上述指标的双向方差分析结果与变异系数。其中，地上部干物质、光合色素及相对含水量的数值分别为10株、6株及5株生物学重复的平均值±标准误（Standard Error, SE）。