Table 2.

F and P values of a two-way ANOVA on the effects of P level (P1 versus P50), species (barley, canola and potato) and their interactions on the parameters determined in this study. P, P level; S, species; df, degrees of freedom; Error, error df values; D15, day 15; D28, day 28.

Parameters	Factors	df	F	P
Total DW	P	1	1048.1	<0.001
	S	2	46.7	<0.001
	P × S	2	83.8	<0.001
	Error	48
Root/shoot ratio	P	1	397.2	<0.001
	S	2	11.0	<0.001
	P × S	2	27.4	<0.001
	Error	48
Number of total leaves	P	1	245.4	<0.001
	S	2	248.2	<0.001
	P × S	2	36.9	<0.001
	Error	48
Percentage of senescent leaves	P	1	546.2	<0.001
	S	2	6.1	0.004
	P × S	2	20.8	<0.001
	Error	48
Total root length	P	1	2.2	0.154
	S	2	1.9	0.173
	P × S	2	34.9	<0.001
	Error	24
Root surface area	P	1	32.0	<0.001
	S	2	3.6	0.045
	P × S	2	36.4	<0.001
	Error	24
Root tip number	P	1	0.01	0.91
	S	2	11.8	<0.001
	P × S	2	22.9	<0.001
	Error	24
D15 Citric acid	P	1	7.7	0.009
	S	2	6.3	0.017
	P × S	2	13.8	0.001
	Error	32
D15 Malic acid	P	1	45.6	<0.001
	S	2	3.6	0.036
	P × S	2	1.7	0.199
	Error	48
D15 Succinic acid	P	1	2.5	0.123
	S	2	9.6	<0.001
	P × S	2	8.1	0.001
	Error	48
D28 Citric acid	P	1	47.3	<0.001
	S	2	28.4	<0.001
	P × S	2	23.7	<0.001
	Error	32
D28 Malic acid	P	1	22.4	<0.001
	S	2	9.5	<0.001
	P × S	2	8.9	0.001
	Error	48
D28 Succinic acid	P	1	7.7	0.008
	S	2	11.9	<0.001
	P × S	2	15.2	<0.001
	Error	48
Shoot P concentration	P	1	1419.2	<0.001
	S	2	92.3	<0.001
	P × S	2	91.4	<0.001
	Error	30
Shoot P content	P	1	676.1	<0.001
	S	2	1.1	0.340
	P × S	2	0.43	0.654
	Error	30
Root P concentration	P	1	264.8	<0.001
	S	2	19.4	<0.001
	P × S	2	12.8	<0.001
	Error	30
Root P content	P	1	127.5	<0.001
	S	2	8.4	0.001
	P × S	2	6.0	0.006
	Error	30