Table 1. Determination of millet biomass and physicochemical properties in the Cr stress time series (mean±SE).

Data are mean ± standard deviation, and different lowercase letters indicate significant differences between components (p < 0.05).

Treatment group	Control (CK)	Chromium stress for 6 h (Cr_6h)	Chromium stress for 6 days (Cr_6d)
Stem length (cm)	5.86 ±0.55b	5.52 ±0.55b	7.73 ±1.12a
Root length (cm)	4.18 ± 0.81a	3.64 ±0.23a	3.83 ±0.75a
Dry weight (g)	0.0031 ±0.0005b	0.0034 ±0.0005b	0.005 ±0.0006a
Fresh weight (g)	0.0283 ±0.0053b	0.0294 ±0.0026b	0.0378 ±0.0051a
Chlorophyll (SPAD)	24.68 ±1.70a	18.84 ±1.77b	16.34 ±2.00b
N (mg/g)	7.49 ±0.51a	6.19 ±0.52b	5.45 ±0.58b