Table 3.

Photosynthetic efficiency (F_v/F_m), energy flux indices, and concentration of photosynthetic pigments determined in naturally hydrated, naturally dehydrated, in vitro dehydrated, and in vitro rehydrated P. columbina plants

Photosynthetic parameter	Hydrated plants	Dehydrated plants in vivo/in vitro	Rehydrated plants
Fv/Fm	0.689±0.03	0.028±0.008*/0.043±0.016*	0.674±0.014 ns
ABS/CS	248.8±100.3	665.1±131.2*/719.5±536.7*	245.6±135.2 ns
TRo/CS	142.7±65.7	6.2±5.3*/32.9±27.9*	160.8±91.4 ns
ETo/CS	70.6±42.5	1.2±0.9*/7.2±6.9*	78.5±51.1 ns
DIo/CS	108.9±38.5	658.9±126.3*/623.3±498.1*	80.8±44.8 ns
RC/SCo	82.3±44.4	3.2±2.8*/19.3±16.9*	97.4±63.4 ns
Chl a	1.74±0.13	0.92±0.06*/0.97±0.11*	1.86±0.23 ns
PE	1.39±0.51	2.50±1.20*/2.53±1.11*	1.28±0.58 ns
PC	0.44±0.12	2.32±0.37*/2.28±0.39*	0.40±0.12 ns

Each value is an average of three independent replicates ±1 SD.

^*Significant (P<0.05) differences with values measured in hydrated plants.

^ns Not significant.

Chl a, PE, PC, in mg g⁻¹ DT.