Aerobic methane emissions from stinkweed (Thlaspi arvense) capsules

Figures & data

Figure 1. Mature plants of stinkweed (Thlaspi arvense) and their capsules that were used to measure methane emissions. (A) Plants that were grown in a walk-in growth chamber under a temperature regime of 22/18°C (16 h day/8 h night), and (B) capsules and seeds harvested from plants at 3 developmental stages – early, mid and late.

Table 1. Methane emissions and moisture contents from stinkweed (Thlaspi arvense) capsules harvested at 3 developmental stages and incubated under 3 light conditions for 2 hours

Treatment	Methane (ng g dw^−1 h^−1)	Moisture (%)
Light condition
Dark	99.97 ± 5.98 ab	5.05 ± 0.75 a
Dim	101.33 ± 7.04 a	4.38 ± 0.97 a
Bright	83.30 ± 4.78 b	5.29 ± 0.46 a
Capsule developmental stage
Early	98.71 ± 4.75 ab	6.77 ± 0.39 a
Mid	83.54 ± 3.95 b	5.77 ± 0.53 a
Late	102.35 ± 8.38 a	2.18 ± 0.51 b

Means (± SE) followed by different letters within columns and treatments for each parameter are significantly different (P < 0.05) according to Fisher's LSD test.

Figure 2. Methane emissions and moisture contents from stinkweed (Thlaspi arvense) capsules harvested at 3 developmental stages and incubated under 3 light conditions for 2 hours. Capsules incubated under darkness (0 μmol m⁻² s⁻¹), dim light (5 μmol m⁻² s⁻¹), and bright light (160 μmol m⁻² s⁻¹). Letters that follow the symbols (mean ± SE) indicate capsule developmental stages (E, early; M, mid; L, late).