. 2020 Jul 10;11:979. doi: 10.3389/fpls.2020.00979

Table 4.

Variations in P content (total and inorganic) in both root and shoot, available P in rhizosphere growth substrate and APase activity in roots at two growth stage of wheat plants fertilized with rock P and inoculated with five PSB isolates versus P (RP and TSP) treatments alone.

15-day old seedlings					42-day old plants
	Shoot Pi (mg∙g⁻¹)	Root Pi (mg∙g⁻¹)	Rhizosphere available P (ppm)	Root APase(nmol∙g⁻¹∙min⁻¹)	Shoot P (mg∙g⁻¹)		Root P (mg∙g⁻¹)		Rhizosphere available P (ppm)	Root APase(nmol∙g⁻¹∙min⁻¹)
	Shoot Pi (mg∙g⁻¹)	Root Pi (mg∙g⁻¹)	Rhizosphere available P (ppm)	Root APase(nmol∙g⁻¹∙min⁻¹)	Pi	Pt	Pi	Pt	Rhizosphere available P (ppm)	Root APase(nmol∙g⁻¹∙min⁻¹)
RP	0.05^c	0.0132^c	4^c	3.67^a	1.29^bc	2.36^e	0.37^bc	1.52^d	6.01^c	29.58^b
TSP	2.67^a	0.0139^c	33^b	11.43^a	1.34^ab	3.82^b	0.36^c	2.78^a	29.02^a	17.62^b
PSB₁ + RP	1.41^b	0.0362^b	22^b	2.55^a	1.13^bc	3.47^c	0.49^a	1.86^cd	6.33^c	145.189^a
PSB₂ + RP	1.38^b	0.2257^a	24^b	5.45^a	1.24^abc	2.99^d	0.44^ab	2.38^ab	19.41^b	126.928^a
PSB₃ + RP	0.84^bc	0.0115^c	54^a	1.9^a	1.5^a	3.27^c	0.25^c	2.06^bc	7.37^c	78.677^ab
PSB₄ + RP	1.061^bc	0.0108^c	47^a	8.39^a	1.39^ab	3.5^c	0.47^ab	2.46^ab	16.86^b	77.589^ab
PSB₅ + RP	1.29^b	0.0151^c	41^a	2.39^a	1.26^ab	4.21^a	0.41^abc	2.26^bc	5.22^c	138.53^a

Data are means of four replicates and each replicate consists of eight wheat plants per pot harvested at 15- and 42-day after germination. Mean values labeled with the same superscript letter were not significantly different at p < 0.05.