Table 3 Effect of different sources and doses of gamma rays on morphological traits, pigment traits, protein, proline contents, and antioxidant enzymes activity of maize hybrids triple white (Giza 321) plants.
Treatments | Shoot lengths (cm) | Root lengths (cm) | F.W. of shoot (g) | Chlorophyll a | Chlorophyll b | Chlorophyll a + b | Carotenoids | Total protein mg/g dry weight | Total proline mg/g dry weight | Peroxidase (unit/g. F. wt./hour) | Polyphenol oxidase (unit/g. F. wt./hour) |
---|---|---|---|---|---|---|---|---|---|---|---|
Control | 57.30 ± 3.52a | 8.90 ± 1.21ab | 8.14 ± 1.43a | 23.55 ± 1.21a | 19.37 ± 1.21a | 42.92 ± 1.25a | 0.02 ± 0.01d | 6.76 ± 0.05d | 0.99 ± 0.03d | 15 ± 0.59d | 4.80 ± 0.76d |
10 Co | 35.80 ± 3.43c | 6.60 ± 0.51b | 2.92 ± 0.43c | 19.34 ± 2.02b | 12.54 ± 2.21bc | 31.87 ± 2.01c | 2.11 ± 0.02c | 7.66 ± 0.04c | 1.60 ± 0.03c | 22 ± 0.55bc | 8.60 ± 0.59c |
20 Co | 48.25 ± 3.17a | 8.33 ± 0.55ab | 6.31 ± 1.06a | 22.89 ± 1.04a | 14.98 ± 1.32b | 37.87 ± 1.20b | 1.94 ± 0.12c | 8.26 ± 0.04b | 2.05 ± 0.02a | 28 ± 0.59b | 13.20 ± 0.14b |
50 Co | 41.60 ± 3.90bc | 7.60 ± 1.03ab | 4.20 ± 0.65bc | 16.79 ± 1.56bc | 11.54 ± 2.12c | 28.33 ± 2.21cd | 3.52 ± 0.02a | 7.96 ± 0.04b | 1.55 ± 0.04a | 35 ± 0.38a | 16.60 ± 0.12a |
10 Cs | 46.20 ± 2.35a | 12.10 ± 1.63a | 5.28 ± 0.47abc | 12.79 ± 1.32d | 9.80 ± 1.02d | 22.59 ± 2.36d | 3.44 ± 0.032a | 7.39 ± 0.04c | 1.38 ± 0.03c | 18 ± 0.26d | 6.00 ± 1.48d |
20 Cs | 40.83 ± 1.44bc | 8.16 ± 1.08ab | 3.53 ± 0.60c | 12.69 ± 2.32d | 8. 80 ± 2.21d | 21.49 ± 2.36d | 3.47 ± 0.21a | 8.76 ± 0.04a | 2.55 ± 0.03b | 22 ± 0.89bc | 8.40 ± 0.48c |
50 Cs | 46.80 ± 3.84a | 9.60 ± 1.08ab | 4.94 ± 0.51abc | 14.87 ± 2.21c | 8.78 ± 0.65d | 23.65 ± 1.65d | 3.36 ± 0.14a | 7.08 ± 0.04bc | 1.70 ± 0.03b | 25 ± 0.71b | 7.20 ± 0.59c |
HSD at 5% | 12.36 | 4.01 | 3.34 | 3.36 | 2.01 | 4.34 | 0.65 | 0.45 | 0.51 | 4.34 | 2.65 |