Table 5. Influence of phosphorus deficiency on chlorophyll fluorescence parameters.

Pi treatment	Fv/Fm	qP	NPQ	D	P	Ex
+P	0.74±0.01	0.41±0.02	2.07±0.03	0.57±0.04	0.19±0.03	0.24±0.07
-P	0.63±0.01*	0.26±0.03*	2.42±0.05*	0.63±0.06*	0.08±0.03*	0.29±0.02*

The reported values represent the mean of 15 seedlings ± S.D. * represents significant difference at p<0.05 compared with +P plants.