Table 3. Pigment content in NE and IE tobacco.
The Chl a, Chl b, and carotenoid (Car) pigment contents obtained from mature leaves harvested from 27-, 41-, and 54-d-old tobacco plants are shown. Raw data for LMA (g m−2 leaf area) and pigment content (μg m−2 leaf area) were used to estimate pigment content (mg g−1 leaf dry weight). Different lowercase letters indicate significant differences between NE and IE at P < 0.05 using one-way ANOVA followed by Fisher’s lsd test. Values represent means ± se (n = 5 plants per line).
| Age | Plant Line | Pigment Content (μg⋅m−2) | Pigment Content (mg⋅g−1 DW) | ||||
|---|---|---|---|---|---|---|---|
| Chl a | Chl b | Car | Chl a | Chl b | Car | ||
| Day 27 | NE | 12.3 ± 0.2 b | 4.1 ± 0.1 a | 2.6 ± 0.1 b | 10.06 ± 0.19 a | 3.36 ± 0.07 a | 2.16 ± 0.04 a |
| IE | 13.4 ± 0.3 a | 4.4 ± 0.1 a | 2.9 ± 0.1 a | 9.97 ± 0.22 a | 3.26 ± 0.06 a | 2.19 ± 0.04 a | |
| Day 41 | NE | 17.7 ± 0.4 b | 5.6 ± 0.1 b | 3.7 ± 0.1 a | 11.75 ± 0.28 b | 3.70 ± 0.07 b | 2.46 ± 0.07 a |
| IE | 19.8 ± 0.5 a | 6.5 ± 0.1 a | 4.0 ± 0.1 a | 12.31 ± 0.32 a | 4.06 ± 0.08 a | 2.49 ± 0.07 a | |
| Day 54 | NE | 19.5 ± 0.4 b | 6.8 ± 0.1 b | 3.8 ± 0.1 a | 12.04 ± 0.25 b | 4.18 ± 0.07 b | 2.37 ± 0.06 b |
| IE | 21.7 ± 0.7 a | 7.4 ± 0.2 a | 4.1 ± 0.2 a | 13.79 ± 0.45 a | 4.72 ± 0.14 a | 2.59 ± 0.10 a | |