Polyphosphate application influences morpho-physiological root traits involved in P acquisition and durum wheat growth performance

Table 1 Variation in morphological root traits and root biomass of wheat under application of PolyPs and OrthoP at three P doses

P fertilizers	Doses (kg P/ha)	RDW (g)	RL (m)	RSA (cm²)	RD (mm)	RV (cm³)	RLD (cm.cm⁻³)	SRL (m g⁻¹)
PolyC	30	2.92 ^abc	2.40 ^cde	173.2 ^de	0.24 ^gh	1.04 ^ef	2.33 ^ab	0.84 ^cde
	60	2.57 ^bc	3.79 ^a	227.78 ^bc	0.23 h	1.45 ^bc	2.61 ^a	1.51 ^a
	90	2.44 ^c	3.09 ^bc	249.74 ^b	0.24 ^gh	1.43 ^bc	2.17 ^bc	1.31 ^ab
PolyB	30	2.64 ^bc	3.43 ^ab	243.04 ^b	0.24 ^fgh	1.57 ^b	2.18 ^bc	1.3 ^ab
	60	2.57 ^bc	2.35 ^de	198.9 cd	0.26 ^bcd	1.36 ^bcd	1.74 ^efg	0.94 cd
	90	2.82 ^abc	2.65 cd	241.16 ^b	0.27 ^abc	1.45 ^bc	1.84 ^def	0.95 cd
PolyA	30	3.56 ^a	3.48 ^ab	326.05 ^a	0.26 ^c−f	1.85 ^a	1.87 ^cde	0.99 ^bcd
	60	3.28 ^abc	2.54 cd	218.31 ^bc	0.26 ^b−e	1.48 ^b	1.72 ^efg	0.78 ^de
	90	3.34 ^ab	2.39 ^c−e	239.27 ^b	0.29 ^a	1.57 ^b	1.51 fg	0.72 ^de
OrthoP	30	3.41 ^ab	2.57 cd	170.96 ^de	0.27 ^bcd	1.21 ^cde	2.12 ^bcd	0.82 ^cde
	60	3.16 ^abc	1.71 ^ef	143.61 ^e	0.28 ^ab	1.16 ^de	1.48 g	0.57 ^e
	90	3.01 ^abc	3.43 ^ab	225.22 ^bc	0.25 ^e–h	1.43 ^bc	2.39 ^ab	1.14 ^bc
P0		3.01 ^abc	1.65 ^f	141.98 ^e	0.25 ^d−g	0.89 ^f	1.82 ^def	0.56 ^e
P		***	***	***	***	***	***	***
D		ns	***	***	***	ns	***	Ns
P * D		ns	***	***	***	***	***	***

Means (n = 8) that do not share the same letters in the column differ significantly according to Tukey's test (p < 0.05). Asterisks indicate significant differences between P-fertilizers (P), P doses (D) and their interactions (P*D) (ns. not significant; * p < 0.05; **p < 0.01; ***P < 0.001)

ISSN: 1471-2229