. 2016 Sep 1;42(4):601–620. doi: 10.1007/s10867-016-9428-1

Table 1.

Changes of extracted and technical fluorescence parameters vs. salinity

	Salinity (mM)	Control	50	100	150	200
F_O	Veg Rep	292.00^e ±2.15 512.25^d ±2.16	319.25^d ±3.75 539.62^c ±3.75	382.62^c ±5.57 621.37^b ±10.63	403.75^b ±4.37 619.37^b ±4.06	527.37^a ±2.35 746.37^a ±2.51
F_M	Pooled stages	3042.19^d ±38.28	3197.63^c ±22.84	3364.06^b ±14.40	3402.00^b ±10.06	3517.00^a ±10.71
F_V	Pooled stages	2640.06^c ±39.15	2768.19^b ±21.31	2862.06^a ±12.68	2890.44^a ±10.13	2880.13^a ±11.75
T_M (ms)	Veg Rep	860.75^a ±5.80 713.87^a ±5.32	799.62^b ±3.61 673.87^b ±4.55	742.50^c ±6.56 639.75^c ±6.08	730.50^c ±6.29 621.50^d ±6.46	666.87^d ±4.73 588.25^e ±4.17
LD	Veg Rep	0.10^d ±0.01 0.16^c ±0.01	0.10^d ±0.01 0.16^c ±0.01	0.12^c ±0.01 0.17^b ±0.01	0.13^b ±0.01 0.17^b ±0.01	0.16^a ±0.01 0.20^a ±0.01
M_O	Pooled stages	0.63^d ±0.01	0.82^c ±0.01	1.00^b ±0.01	1.01^b ±0.01	1.48^a ±0.03
V_J	Veg Rep	0.31^d ±0.01 0.56^c ±0.01	0.34^c ±0.01 0.57^b ±0.01	0.40^b ±0.01 0.62^a ±0.01	0.40^b ±0.01 0.62^a ±0.01	0.55^a ±0.01 0.62^a ±0.01
V_I	Pooled stages	0.55^d ±0.01	0.61^c ±0.01	0.66^b ±0.01	0.66^b ±0.01	0.75^a ±0.01
S_M	Veg Rep	107.63^a ±2.62 79.16^a ±1.46	94.61^b ±1.91 64.26^b ±0.70	83.59^c ±1.40 55.35^c ±0.57	80.34^c ±1.73 52.27^d ±0.61	72.81^d ±2.28 46.67^e ±0.38
N	Veg Rep	185.29^b ±4.98 104.29^a ±0.93	201.55^b ±5.56 100.84^a ±1.54	194.08^b ±4.35 95.03^b ±1.70	186.89^b ±4.33 91.48^bc ±1.16	237.20^a ±9.71 88.39^c ±0.79
RC/ABS	Pooled stages	0.58^a ±0.01	0.48^b ±0.01	0.43^c ±0.01	0.42^c ±0.01	0.34^d ±0.01
RC/CS	Veg Rep	1453.42^a ±22.62 2107.31^a ±18.45	1236.31^b ±19.63 1854.32^b ±22.91	1182.62^b ±20.05 1745.47^c ±21.79	1178.11^b ±17.30 1732.91^c ±16.33	848.96^c ±40.25 1595.77^d ±16.27

Within each row, means ± SE (n = 4) followed by at least one similar letter were not significantly different according to LSD (0.05) test. Since vegetative and reproductive stages behaved similarly in some parameters, they were pooled together. Except for T_M, measured in ms, all the chlorophyll-a fluorescence parameters were quantified in an arbitrary unit (a.u.) or a relative unit (r.u.). F_O: initial fluorescence intensity (at 50 μs); F_M: peak or maximum fluorescence intensity; F_V: variable fluorescence intensity; T_M: time to reach F_M; LD: non-photochemical loss in dark-adapted state of PSII; M_O: net rate of closure in reaction centers; V_J: closed reaction centers at the J-step fluorescence intensity (at 2 ms); V_I: closed reaction centers at the I-step fluorescence intensity (at 30 ms); S_M: relative pool size of the plastoquinone; N: turnover number of quinone-a; RC/ABS: density of the reaction centers per absorption energy flux; RC/CS: density of the reaction centers per excited cross section of leaf area; Veg: vegetative stage; Rep: reproductive stage