Table 1.
Photosynthetic pigments for the three Canola genotypes under different N applications without and with yeast extract.
| Studied factor | Chlorophyll a | Chlorophyll b | Chl. a/b ratio | |
|---|---|---|---|---|
| Genotypes (G) | ||||
| G1 (AD201) | 4.06 ± 0.132a | 1.56 ± 0.046a | 2.68 ± 0.157b | |
| G2 (Topaz) | 4.11 ± 0.117a | 1.47 ± 0.048b | 2.87 ± 0.167ab | |
| G3 (SemuDNK 234/84) | 4.16 ± 0.092a | 1.44 ± 0.058c | 3.00 ± 0.177a | |
| Fertilizer (F) | ||||
| F0 (control) | 2.96 ± 1.657e | 1.56 ± 0.026d | 1.91 ± 0.087d | |
| F1 (95 kg N ha−1 without yeast) | 3.48 ± 0.123d | 1.73 ± 0.021a | 2.02 ± 0.084d | |
| F2 (120 kg N ha−1 without yeast) | 4.35 ± 0.046bc | 1.66 ± 0.015b | 2.63 ± 0.049c | |
| F3 (142 kg N ha−1 without yeast) | 4.25 ± 0.068c | 1.58 ± 0.020c | 2.70 ± 0.062c | |
| F4 (95 kg N ha−1 with yeast) | 4.42 ± 0.054bc | 1.45 ± 0.060e | 3.07 ± 0.115b | |
| F5 (120 kg N ha−1 with yeast) | 4.70 ± 0.035a | 1.23 ± 0.021f | 3.84 ± 0.066a | |
| F6 (142 kg N ha−1 with yeast) | 4.62 ± 0.150ab | 1.22 ± 0.025f | 3.80 ± 0.135a | |
| Interaction | ||||
| G1 | F0 | 2.68 ± 0.009h | 1.63 ± 0.005de | 1.64 ± 0.027h |
| F1 | 3.16 ± 0.009g | 1.81 ± 0.003a | 1.74 ± 0.007gh | |
| F2 | 4.20 ± 0.012de | 1.71 ± 0.012b | 2.45 ± 0.023de | |
| F3 | 4.34 ± 0.010bcde | 1.51 ± 0.009h | 2.88 ± 0.011c | |
| F4 | 4.59 ± 0.009abcd | 1.61 ± 0.012ef | 2.85 ± 0.017c | |
| F5 | 4.69 ± 0.035abc | 1.31 ± 0.009i | 3.59 ± 0.009b | |
| F6 | 4.76 ± 0.018 ab | 1.32 ± 0.008i | 3.61 ± 0.025b | |
| G2 | F0 | 3.04 ± 0.025gh | 1.51 ± 0.010h | 2.02 ± 0.009fg |
| F1 | 3.58 ± 0.021f | 1.67 ± 0.009c | 2.14 ± 0.006f | |
| F2 | 4.52 ± 0.003abcde | 1.62 ± 0.006de | 2.79 ± 0.009c | |
| F3 | 4.12 ± 0.195e | 1.59 ± 0.009f | 2.59 ± 0.13cd | |
| F4 | 4.35 ± 0.006bcde | 1.52 ± 0.003gh | 2.86 ± 0.009c | |
| F5 | 4.81 ± 0.007a | 1.21 ± 0.003j | 3.97 ± 0.015a | |
| F6 | 4.37 ± 0.472bcde | 1.17 ± 0.003k | 3.75 ± 0.410ab | |
| G3 | F0 | 3.15 ± 0.312g | 1.54 ± 0.009g | 2.05 ± 0.184fg |
| F1 | 3.71 ± 0.307f | 1.71 ± 0.009b | 2.17 ± 0.170ef | |
| F2 | 4.33 ± 0.027bcde | 1.64 ± 0.007d | 2.64 ± 0.026cd | |
| F3 | 4.30 ± 0.062cde | 1.64 ± 0.006d | 2.62 ± 0.045cd | |
| F4 | 4.31 ± 0.110cde | 1.22 ± 0.006j | 3.53 ± 0.076b | |
| F5 | 4.62 ± 0.061abcd | 1.16 ± 0.014k | 3.97 ± 0.061a | |
| F6 | 4.73 ± 0.006abc | 1.17 ± 0.006k | 4.04 ± 0.023a | |
| ANOVA | df | |||
| Genotypes (G) | 2 | < 0.001 | < 0.001 | < 0.001 |
| Fertilizer (F) level | 6 | < 0.001 | < 0.001 | < 0.001 |
| G × F | 12 | < 0.001 | < 0.001 | < 0.001 |