Table 1.

Effect of arsenate applied either singly or in combination with phosphate on the height, biomass, germination % and protein content of black gram.

	Control	100 µM As	200 µM As	100 µM As + P	200 µM As + P
Germination %	96.67 ± 3.330	83.33 ± 3.330	70.00 ± 10.000	86.66 ± 3.330	76.66 ± 6.670
Shoot length (cm)	20.75 ± 1.876	13.65 ± 0.260*	8.25 ± 0.029*	14.35 ± 0.087*	13.20 ± 0.635*
Root length (cm)	6.45 ± 0.318	6.10 ± 0.577	5.60 ± 0.346	6.35 ± 0.491	5.35 ± 0.087
Shoot fresh weight (g)	2.22 ± 0.176	1.25 ± 0.020*	0.94 ± 0.098*	1.34 ± 0.061*	1.35 ± 0.176*
Shoot dry weight (g)	0.35 ± 0.032	0.17 ± 0.003*	0.15 ± 0.000*	0.22 ± 0.003*	0.19 ± 0.017*
Root fresh weight (g)	0.18 ± 0.009	0.14 ± 0.006	0.12 ± 0.009*	0.14 ± 0.009*	0.10 ± 0.023*
Root dry weight (g)	0.027 ± 0.001	0.016 ± 0.000	0.014 ± 0.002	0.016 ± 0.001	0.013 ± 0.001
Protein (mg/100 mg tissue)	8.49 ± 0.141	7.01 ± 0.352*	6.00 ± 0.147*	7.00 ± 0.173*	6.90 ± 0.058*

P = 40 ppm K₂HPO₄; values are means of three replicates ± SE *Data significant at P < 0.05. Multiple comparisons versus control group (Holm Sidak method) overall significance level = 0.05.