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. 2020 Mar 30;20:130. doi: 10.1186/s12870-020-2325-6

Table 2.

Physiological parameters in young and old fronds of P. cretica var. Albo-lineata

Parameters	Young fronds		Old fronds
	control	As₁₀₀	control	As₁₀₀	As₂₅₀
	x̄ ± SD	x̄ ± SD	x̄ ± SD	x̄ ± SD	x̄ ± SD
Chl A (nmol ml⁻¹)	11 ± 0.2^bB	10 ± 0.5^aB	2.6 ± 0.6^bA	1.5 ± 0.4^abA	1.0 ± 0.5^a
Chl B (nmol ml^− 1)	4.8 ± 1.0^bB	2.8 ± 0.2^aB	2.6 ± 0.7^bA	1.9 ± 0.4^abA	0.6 ± 0.2^a
Chl A/Chl B (−)	2.4 ± 0.4^aB	3.6 ± 0.03^bB	1.1 ± 0.7^aA	0.9 ± 0.5^aA	1.4 ± 0.4^a
Σ Chl (nmol ml^− 1)	16 ± 1.0^bB	13 ± 0.7^aB	5.2 ± 0.1^bA	3.4 ± 0.3^abA	1.6 ± 0.7^a
Crt (nmol ml^− 1)	2.4 ± 0.1^aB	2.3 ± 0.3^aB	0.5 ± 0.2^aA	0.3 ± 0.1^aA	0.3 ± 0.04^a
Fv/Fm (µmol m^-2 s^-1)	0.8 ± 0.02^bB	0.7 ± 0.03^aB	0.7 ± 0.02^bA	0.6 ± 0.07^aA	0.5 ± 0.1^a
WP (MPa)	−1.4 ± 0.09^aB	−1.9 ± 0.03^bB	−1.7 ± 0.04^aA	−3.7 ± 0.03^bA	−2.5 ± 0.4^ab
E(mmol H₂O m⁻² s⁻¹)	0.7 ± 0.2^aA	0.9 ± 0.2^bA	0.8 ± 0.1^bA	0.7 ± 0.1^aA	0.3 ± 0.04^a
P_N (μmol CO₂ m^− 2 s^− 1)	8.1 ± 0.1^bB	7.7 ± 0.04^aB	7.7 ± 0.04^bA	7.2 ± 0.03^abA	6.7 ± 0.1^a
WUE (−)	12 ± 2.7^bA	8.6 ± 1.3^aA	9.7 ± 1.2^aA	9.4 ± 0.6^aA	24.4 ± 1.6^b