. 2017 Sep 25;5:e3553. doi: 10.7717/peerj.3553

Table 3. Chlorophyll (Chl) concentration (in μmol g⁻¹ DW), SPAD index, fluorescence (F_v/F_m) parameter and photosynthetic rate (A_CO2, in μmol m⁻² s⁻¹) measured in the non-chlorotic and chlorotic fully expanded leaves of ‘Navelina’ orange trees.

	Non-chlorotic	Chlorotic	ANOVA
Chl a	3.6	1.4	^***
Chl b	1.4	0.7	^**
Chl a/b	2.6	1.9	^*
SPAD	70.2	26.6	^***
F_v/F_m	0.795	0.651	^*
A_CO2	7.2	5.3	^**

Notes:

Values are the mean of six biological replicates (n = 6). For the comparison of mean, a variance analysis (ANOVA), followed by the least significant differences (LSD) test, calculated at the 95% confidence level, was performed. Significant differences are indicated as follows:

p < 0.05;

^**

p < 0.01;

^***

p < 0.001. DW, dry weight.

Table 3. Chlorophyll (Chl) concentration (in μmol g−1 DW), SPAD index, fluorescence (Fv/Fm) parameter and photosynthetic rate (ACO2, in μmol m−2 s−1) measured in the non-chlorotic and chlorotic fully expanded leaves of ‘Navelina’ orange trees.

Table 3. Chlorophyll (Chl) concentration (in μmol g⁻¹ DW), SPAD index, fluorescence (F_v/F_m) parameter and photosynthetic rate (A_CO2, in μmol m⁻² s⁻¹) measured in the non-chlorotic and chlorotic fully expanded leaves of ‘Navelina’ orange trees.