| Source of variance | NO3 | LAA | HAA | Total phenols | |||
| (mg・kg−1 f.wt.) | (mmol Trolox/100g d.wt.) | (mmol Ascorbic acid/100g d.wt.) | (mg Gallic acid/100g d.wt.) | ||||
| Treatment (T) | *** | NS | * | *** | |||
| Season (S) | * | *** | *** | *** | |||
| T × S | * | NS | NS | NS | |||
| Treatment | |||||||
| T1 | 1978.65 | a | 7.51 | 2.30 | ab | 68.15 | A |
| T2 | 1777.42 | ab | 6.51 | 2.22 | bc | 63.54 | B |
| T3 | 1021.53 | bc | 6.72 | 2.13 | c | 64.91 | Ab |
| T4 | 866.53 | c | 6.90 | 2.14 | bc | 63.01 | Ab |
| T5 | 938.12 | c | 7.00 | 2.42 | a | 57.62 | B |
| T6 | 737.36 | c | 7.45 | 2.27 | bc | 60.72 | b |
| T7 | 537.11 | c | 7.61 | 2.04 | c | 68.57 | a |
| T8 | 626.07 | c | 6.44 | 2.06 | c | 62.62 | ab |
| Season | |||||||
| Autumn | 1251.67 | 7.81 | 2.58 | 74.89 | |||
| Summer | 878.13 | 6.35 | 1.88 | 53.68 | |||
| T × S | |||||||
| T1 Autumn | 2891.62 | a | 8.17 | 2.63 | 82.79 | ||
| T1 Summer | 1065.68 | cd | 6.85 | 1.98 | 53.51 | ||
| T2 Autumn | 2327.78 | ab | 7.21 | 2.66 | 74.92 | ||
| T2 Summer | 1410.52 | bcd | 5.80 | 1.79 | 52.16 | ||
| T3 Autumn | 1674.72 | bc | 6.90 | 2.51 | 71.58 | ||
| T3 Summer | 586.07 | d | 6.53 | 1.75 | 58.23 | ||
| T4 Autumn | 880.58 | cd | 7.57 | 2.46 | 73.16 | ||
| T4 Summer | 852.47 | cd | 6.23 | 1.82 | 52.86 | ||
| T5 Autumn | 872.04 | cd | 8.46 | 2.68 | 67.38 | ||
| T5 Summer | 1004.19 | cd | 5.53 | 2.15 | 47.86 | ||
| T6 Autumn | 542.61 | d | 8.28 | 2.59 | 71.86 | ||
| T6 Spring | 867.19 | cd | 6.62 | 1.95 | 49.59 | ||
| T7 Autumn | 550.11 | d | 8.48 | 2.58 | 84.32 | ||
| T7 Spring | 524.11 | d | 7.02 | 1.68 | 58.07 | ||
| T8 Autumn | 537.30 | d | 7.18 | 2.50 | 78.93 | ||
| T8 Spring | 714.84 | cd | 6.20 | 1.91 | 57.18 | ||