Table 4.

Mineral concentrations in Portulaca oleracea at different growth stages (mmol kg⁻¹ DW).

Minerals	15 Day	30 Day	45 Day	60 Day
Ca	1612 ± 27	1742 ± 22	1892 ± 27	1945 ± 30
Mg	2127 ± 23	2196 ± 16	2250 ± 21	2443 ± 27
Na	356 ± 4	332 ± 7	306 ± 3	278 ± 8
K	1257 ± 10	1289 ± 7	1323 ± 11	1526 ± 31
Fe	218 ± 8	248 ± 5	252 ± 4	262 ± 3
Zn	128 ± 2	136 ± 1	142 ± 2	160 ± 1
Cl	82 ± 2	71 ± 1	62 ± 2	53 ± 2