Cold-induced photosynthetic deficiency in fip37-4.
(A) The photosynthetic parameters Fv/Fm, Φ(II), Φ(NPQ), and Φ(NO) were calculated from plants grown in soil for 14 days under standard conditions and then subjected to 4 days of cold treatment.
(B) PSI parameters Φ(I), Φ(ND), and Φ(NA) were calculated from plants grown as described in (A).
Statistically significant differences compared with the control condition were assessed using Student’s t-tests in (A) and (B) (∗p ≤ 0.05; ∗∗p ≤ 0.01; ∗∗∗p ≤ 0.001).