Table 1.

Effects of photoinhibitory light on the maximal efficiency of PSII phytochemistry (Fv/Fm) in the dark-adapted leaves of Echinochloa crus-galli, Digitaria sanguinalis, and Zea mays in growth light conditions (ML) and after transferring leaves for 1 h to high light (ML → HL)

	Fv/Fm
	ML	ML → HL
Zea mays	0.79 ± 0.004	0.53 ± 0.038
Digitaria sanguinalis	0.80 ± 0.010	0.65 ± 0.004
Echinochloa crus-galli	0.81 ± 0.007	0.75 ± 0.016

Data are mean ± SD of ten independent experiments