Table 5.

The effect of seeds coating in Spirulina homogenate (100–700 µL per 1.5 g of seeds) on the radish elemental composition (mg kg⁻¹ d.m.; N = 3)

Group		Commercial biostimulant (CB)		H2O (control)		Dose of Spirulina homogenate for seeds coating
						100 µL		300 µL		500 µL		700 µL
Element/wavelength (nm)		Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Al	308.215	30.22	10.67	23.33	5.89	221.2	113.9	39.66	18.56	27.73	2.47	35.89	3.53
Ca	315.887	8688	1036	6538	1051	9319	933	9026	751	9806	726	9994	703
Cr	267.716	1.023	0.260	0.5124	0.2200	1.067	0.679	0.9426	0.2964	0.9240	0.5532	0.9749	0.9225
Cu	324.754	11.32	1.82	8.927	0.898	12.15	0.64	12.36	0.91	11.83	1.09	13.31	1.15
Fe	259.94	127.1	15.5	107.8	10.6	133.0	8.9	131.5	9.5	134.9	11.5	140.7	3.2
K	766.491	8694	913	8284	942	10,595	1932	10,072	678	10,254	1060	9619	2764
Mg	285.213	5255	359	4177	496	5661	602	5574	183	6003	248	6366	385
Mn	257.61	44.77	7.85	33.77	4.17	42.86	4.10	50.90	9.93	52.50	2.95	55.54	6.66
Na	588.995	3204	1108	1716	914	4096	1147	4756	1523	3186	436	2587	334
Ni	231.604	12.73	5.07	4.730	1.826	4.332	LOD	4.267	3.272	10.24	LOD	7.623	4.489
P	213.618	14,758	848	12,855	1407	16,442	1634	15,763	451	15,428	723	16,367	1281
S	181.972	22,785	1409	19,588	1756	25,183	1932	22,718	2549	24,654	1337	24,866	1879
Si	251.611	55.43	21.01	48.61	25.82	72.57	16.16	79.15	18.54	62.64	5.05	64.94	3.21
Zn	213.857	98.66	11.19	80.56	8.95	117.8	9.9	110.1	8.6	118.4	15.6	118.7	10.5