Responses of photosynthesis and chlorophyll fluorescence during light induction in different seedling ages of Mahonia oiwakensis

Botanical Studies

Table 1 Analysis of variance of the seedling age (A) and light intensity (L), and their interactions (A × L) on ETR, NPQ, ФPSII, photo-inhibition, qE, qZ + qT, qE + qZ + qT and qI of plant. Measurements were made at 25 °C under 50, 100, 300, 500, 1,000, 1,500, and 2,000 μmol m⁻² s⁻¹ PPFD

Parameter	Main effect
	seedling age (A)		light intensity (L)
	F and p value with significance
	F	p	F	p
ETR	0.08	0.778^NS	85.51	< 0.0001****
NPQ	4.91	0.005**	74.62	< 0.0001****
ФPSII	3.75	0.100^NS	53.05	< 0.0001****
photo-inhibition	7.76	0.007**	26.19	< 0.0001****
qE	5.46	0.022*	38.25	< 0.0001****
qZ + qT	3.78	0.056^NS	35.99	< 0.0001****
qE + qZ + qT	5.07	0.028*	85.64	< 0.0001****
qI	4.79	0.032*	53.27	< 0.0001****

Trait	Interaction effect
	A x L
	F and p value with significance
	F	p
ETR	16.63	< 0.0001****
NPQ	57.89	< 0.0001****
ФPSII	30.12	< 0.0001****
photo-inhibition	21.62	< 0.0001****
qE	57.38	< 0.0001****
qZ + qT	17.82	< 0.0001****
qE + qZ + qT	33.98	< 0.0001****
qI	56.08	< 0.0001****

^*p ≤ 0.05, ** p ≤ 0.01, **** p ≤ 0.0001,NS, Non-significant difference; n = 35 and 10 plants (replicates) for seedling age and LI, respectively, and n = 70 plants for interaction effect (A x L)