Table 1.

Quantity of significantly FR light-dependent volatile organic compounds (ng g⁻¹) produced by Sphagnum flexuosum cultivated under artificial light conditions without FR light addition (FR−) and supplemented FR light (FR+). The volatiles were sampled under artificial light conditions (Standard sampling) or FR light was added to shoots exposed to FR light during cultivation experiment (FR light sampling). (One-way ANOVA performed separately for each compound and sampling treatment, *p < 0.01, **p < 0.05.) VOCs were collected for 72 h.

Sphagnum flexuosum	standard sampling		FR light sampling
	FR+	FR−	FR+	FR−
methyl 2,6,6-trimethyl-1-cyclohexene-1-carboxylate	2.85 (±0.25)	0.27 (±0.70)**	2.69 (±0.65)	0.31 (±0.08)**
β-cyclocitral	5.55 (±0.40)	0.98 (±0.38)**	4.52 (±0.90)	0.80 (±0.18)**
unknown 23	2.65 (±0.48)	0.90 (±0.52)*	15.40 (±4.96)	2.96 (±0.99)*
unknown 27 (possible sesquiterpene)			0.91 (±0.12)	0.11 (±0.03)**
unknown 28 (possible sesquiterpene)	0.47 (±0.06)	0.08 (±0.02)**	1.58 (±0.38)	0.18 (±0.08)**
unknown 29 (possible sesquiterpene)	1.07 (±0.15)	0.19 (±0.06)**	2.73 (±0.70)	0.17 (±0.04)**
unknown 30	1.68 (±0.21)	0.33 (±0.12)**	5.45 (±1.34)	0.52 (±0.14)**
unknown 31	8.17 (±1.48)	2.97 (±1.07)**	4.81 (±0.83)	1.72 (±0.46)**
unknown 33			5.45 (±1.40)	0.51 (±0.14)**
unknown 35	3.89 (±0.44)	2.58 (±0.83)*