Arabidopsis seedlings respond differentially to nutrient efficacy of three rock meals by regulating root architecture and endogenous auxin homeostasis

Table 1 Content of N, P and K elements in 1/2 MS medium and the amount of N, P and K (mg/L) released from the three rock meals after 3, 7 and 15 days of slow shaking in sucrose solution

1/2 MS		N	P	K
1/2 MS		490.00 ± 5.40	18.60 ± 0.30	390.00 ± 2.10
Basalt	Day 0	21.40 ± 0.31	0.31 ± 0.02	11.30 ± 0.11
	Day 3	25.10 ± 0.54	0.53 ± 0.03	22.70 ± 0.35
	Day 7	27.00 ± 0.67	0.54 ± 0.03	25.60 ± 0.53
	Day 15	29.12 ± 0.45	0.54 ± 0.08	26.15 ± 0.47
Granite	Day 0	25.10 ± 0.52	0.15 ± 0.01	4.93 ± 0.09
	Day 3	26.00 ± 0.51	0.17 ± 0.01	13.50 ± 0.25
	Day 7	37.30 ± 0.75	0.20 ± 0.02	15.20 ± 0.29
	Day 15	39.58 ± 0.48	0.21 ± 0.01	16.31 ± 0.23
Marlstone	Day 0	52.60 ± 1.02	0.14 ± 0.01	10.70 ± 0.12
	Day 3	58.20 ± 1.04	0.24 ± 0.02	15.60 ± 0.14
	Day 7	61.40 ± 1.13	0.28 ± 0.04	18.00 ± 0.34
	Day 15	62.79 ± 1.07	0.29 ± 0.03	19.17 ± 0.28

ISSN: 1471-2229