Table 1.
Phenotypic variation of agronomic and yield related traits in 119 rapeseed (Brassica napus L.) varieties.
| Trait | Watering regime | Mean | SD | Min | Max | ECV (%) | PCV (%) | GCV (%) | h2 (%) | GA | GAM (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DTF | WW17 | 183.01 | 5.82 | 168 | 189 | 2.66 | 3.18 | 4.15 | 58.73 | 7.84 | 4.29 |
| DS17 | 186.00 | 6.34 | 171 | 192 | 1.20 | 3.39 | 3.59 | 88.91 | 10.45 | 5.62 | |
| WW18 | 180.64 | 3.57 | 171 | 188 | 0.89 | 1.98 | 2.17 | 83.26 | 5.74 | 3.18 | |
| DS18 | 180.62 | 4.13 | 166 | 187 | 0.48 | 2.23 | 2.28 | 95.65 | 6.93 | 3.83 | |
| WW20 | 183.54 | 9.03 | 171 | 201 | 0.54 | 4.95 | 4.98 | 98.82 | 15.91 | 8.67 | |
| DS20 | 184.89 | 9.14 | 172 | 202 | 0.83 | 4.98 | 5.05 | 97.31 | 16.00 | 8.65 | |
| DTSD | WW17 | 190.73 | 4.97 | 179 | 197 | 2.02 | 2.56 | 3.26 | 61.70 | 6.75 | 3.54 |
| DS17 | 193.04 | 5.81 | 182 | 190 | 1.15 | 3.01 | 3.22 | 87.19 | 9.54 | 4.94 | |
| WW18 | 187.73 | 3.18 | 179 | 198 | 0.56 | 1.67 | 1.76 | 89.81 | 5.22 | 2.78 | |
| DS18 | 186.88 | 3.45 | 173 | 195 | 0.55 | 1.79 | 1.87 | 91.39 | 5.62 | 3.01 | |
| WW20 | 192.47 | 10.02 | 179 | 213 | 0.92 | 5.22 | 5.30 | 96.97 | 17.40 | 9.04 | |
| DS20 | 193.72 | 9.71 | 181 | 212 | 0.95 | 5.01 | 5.10 | 96.52 | 16.77 | 8.66 | |
| DTR | WW17 | 256.84 | 2.27 | 253 | 273 | 0.79 | 0.87 | 1.17 | 54.99 | 2.91 | 1.13 |
| DS17 | 255.31 | 2.15 | 252 | 262 | 0.56 | 0.84 | 1.01 | 69.02 | 3.12 | 1.22 | |
| WW18 | 268.80 | 1.46 | 266 | 274 | 0.42 | 0.54 | 0.68 | 62.46 | 2.01 | 0.75 | |
| DS18 | 267.80 | 1.28 | 265 | 271 | 0.39 | 0.48 | 0.61 | 60.14 | 1.74 | 0.65 | |
| WW20 | 278.58 | 4.84 | 265 | 289 | 0.33 | 1.75 | 1.78 | 96.64 | 8.41 | 3.02 | |
| DS20 | 272.82 | 5.60 | 254 | 285 | 0.28 | 2.03 | 2.05 | 98.14 | 9.64 | 3.53 | |
| PH | WW17 | 108.20 | 19.35 | 41.33 | 157.55 | 6.11 | 18.04 | 19.05 | 89.73 | 32.55 | 30.08 |
| DS17 | 86.58 | 14.25 | 61.14 | 141.33 | 12.16 | 16.56 | 20.54 | 64.97 | 20.33 | 23.49 | |
| WW18 | 178.24 | 2.37 | 123.45 | 141.33 | 0.84 | 0.78 | 1.15 | 46.38 | 2.80 | 0.94 | |
| DS18 | 170.60 | 5.09 | 111.11 | 130.45 | 1.06 | 1.77 | 2.06 | 73.47 | 7.74 | 2.67 | |
| WW20 | 142.31 | 12.50 | 113.34 | 173.12 | 2.09 | 8.81 | 9.05 | 94.69 | 21.47 | 15.09 | |
| DS20 | 122.21 | 8.80 | 100.43 | 154.32 | 2.15 | 7.18 | 7.50 | 91.80 | 14.81 | 12.11 | |
| BNPP | WW17 | 84.21 | 9.92 | 29 | 92 | 7.09 | 11.76 | 13.73 | 73.31 | 14.92 | 17.72 |
| DS17 | 28.10 | 4.16 | 23 | 47 | 8.19 | 14.69 | 16.82 | 76.28 | 6.35 | 22.58 | |
| WW18 | 168.53 | 12.20 | 125 | 193 | 4.70 | 7.37 | 8.75 | 71.06 | 18.43 | 10.94 | |
| DS18 | 143.06 | 12.13 | 115 | 172 | 4.75 | 8.55 | 9.78 | 76.43 | 18.83 | 13.16 | |
| WW20 | 181.23 | 12.35 | 149 | 218 | 1.85 | 6.94 | 7.18 | 93.34 | 21.39 | 11.80 | |
| DS20 | 156.10 | 10.48 | 129 | 186 | 2.58 | 6.66 | 7.15 | 86.96 | 17.07 | 10.94 | |
| PW | WW17 | 1,599.65 | 543.50 | 575.76 | 3,575.42 | 27.57 | 33.64 | 43.50 | 59.82 | 732.57 | 45.80 |
| DS17 | 472.43 | 256.80 | 120.45 | 1,535.34 | 41.01 | 53.89 | 67.72 | 63.33 | 356.62 | 75.49 | |
| WW18 | 2,421.35 | 530.42 | 665.45 | 3,900.32 | 13.29 | 21.93 | 25.64 | 73.14 | 799.14 | 33.00 | |
| DS18 | 2,302.02 | 480.84 | 345.42 | 3,395.33 | 13 | 20.73 | 24.47 | 71.77 | 711.41 | 30.90 | |
| WW20 | 2,726.34 | 589.07 | 835.24 | 4,130.35 | 11.95 | 21.65 | 24.73 | 76.66 | 909.55 | 33.36 | |
| DS20 | 1,818.87 | 456.85 | 865.32 | 3,195.46 | 19.35 | 25.12 | 31.71 | 62.75 | 636.94 | 35.02 | |
| SL | WW17 | 7.87 | 0.85 | 5.32 | 10.33 | 7.23 | 10.68 | 12.89 | 68.55 | 1.22 | 15.56 |
| DS17 | 7.81 | 0.89 | 6.14 | 10.33 | 4.18 | 17.45 | 17.94 | 94.56 | 2.33 | 29.86 | |
| WW18 | 6.85 | 0.83 | 5.21 | 9.53 | 2.98 | 11.05 | 11.45 | 93.23 | 1.29 | 18.78 | |
| DS18 | 6.69 | 0.64 | 5.32 | 9.50 | 3.75 | 8.37 | 9.17 | 83.26 | 0.90 | 13.44 | |
| WW20 | 7.10 | 0.99 | 5.12 | 9.32 | 1.99 | 12.76 | 12.91 | 97.63 | 1.58 | 22.18 | |
| DS20 | 6.44 | 0.90 | 4.52 | 9.39 | 2.71 | 12.96 | 13.24 | 95.81 | 1.44 | 22.32 | |
| SNPS | WW17 | 23.53 | 3.82 | 19 | 32 | 4.55 | 16.19 | 16.82 | 92.68 | 6.46 | 27.44 |
| DS17 | 24.50 | 4.08 | 17 | 39 | 2.19 | 16.65 | 16.79 | 98.30 | 7.12 | 29.06 | |
| WW18 | 20.52 | 4.49 | 11 | 31 | 1.97 | 21.68 | 21.77 | 99.18 | 7.80 | 38.00 | |
| DS18 | 19.73 | 4.47 | 11 | 31 | 11.15 | 22.56 | 25.16 | 80.38 | 7.02 | 35.60 | |
| WW20 | 23.40 | 4.93 | 11 | 36 | 2.63 | 20.82 | 20.98 | 98.43 | 8.51 | 36.35 | |
| DS20 | 22.05 | 4.56 | 11 | 39 | 2.47 | 20.59 | 20.74 | 98.58 | 7.93 | 35.97 | |
| SWPP | WW17 | 155.71 | 79.35 | 20.33 | 398.45 | 72.79 | 51.25 | 89.02 | 33.15 | 80.87 | 51.93 |
| DS17 | 35.24 | 16.84 | 12.45 | 122.38 | 64.98 | 47.97 | 80.77 | 35.28 | 17.67 | 50.15 | |
| WW18 | 135.47 | 38.37 | 50.22 | 235.25 | 29.71 | 28.62 | 41.25 | 48.14 | 47.35 | 34.95 | |
| DS18 | 109.01 | 39.86 | 33.11 | 219.42 | 34.88 | 36.60 | 50.56 | 52.41 | 50.84 | 46.63 | |
| WW20 | 511.78 | 143.88 | 125.43 | 845.30 | 23.05 | 27.98 | 36.25 | 59.58 | 194.53 | 38.01 | |
| DS20 | 120.03 | 71.82 | 30.54 | 375.64 | 54.77 | 59.44 | 80.83 | 54.08 | 92.34 | 76.93 | |
| THSW | WW17 | 2.93 | 1.07 | 1.32 | 6.11 | 31.29 | 35.36 | 47.22 | 56.09 | 1.37 | 46.62 |
| DS17 | 2.10 | 0.85 | 1.24 | 4.39 | 20.19 | 40.78 | 45.50 | 80.32 | 1.35 | 64.32 | |
| WW18 | 3.48 | 0.68 | 1.09 | 4.89 | 7.79 | 18.10 | 19.70 | 84.38 | 1.02 | 29.26 | |
| DS18 | 2.05 | 0.65 | 1.05 | 3.97 | 20.30 | 26.86 | 33.67 | 63.64 | 0.77 | 37.71 | |
| WW20 | 4.57 | 0.57 | 2.36 | 6.43 | 2.60 | 10.20 | 10.53 | 93.89 | 0.79 | 17.40 | |
| DS20 | 4.32 | 0.59 | 2.15 | 7.42 | 2.81 | 10.80 | 11.16 | 93.67 | 0.79 | 18.40 | |
| HI | WW17 | 10.91 | 6.55 | 1.32 | 32.34 | 51.86 | 9.5 | 52.73 | 3.24 | 0.33 | 3.01 |
| DS17 | 8.53 | 3.43 | 3.76 | 21.46 | 50.98 | 39.84 | 64.70 | 37.91 | 3.68 | 43.17 | |
| WW18 | 5.78 | 1.75 | 3.31 | 13.17 | 34.31 | 30.09 | 45.63 | 43.48 | 2.02 | 34.92 | |
| DS18 | 4.88 | 1.87 | 2.70 | 15.75 | 40.95 | 37.74 | 55.69 | 45.92 | 2.20 | 45.01 | |
| WW20 | 18.73 | 3.33 | 7.45 | 27.33 | 21.39 | 17.64 | 27.72 | 40.48 | 3.70 | 19.75 | |
| DS20 | 6.39 | 2.70 | 2.45 | 16.35 | 46.58 | 41.3 | 62.26 | 44.01 | 3.08 | 48.22 | |
| SY | WW17 | 2,594.18 | 1,096.08 | 396.34 | 7,666.34 | 25.77 | 42.10 | 49.36 | 72.74 | 1,639.3 | 63.19 |
| DS17 | 1,918.77 | 986.37 | 630.71 | 7,378.25 | 45.85 | 57.09 | 73.22 | 60.79 | 1503.2 | 78.34 | |
| WW18 | 1,352.23 | 383.93 | 500.22 | 2,350.21 | 24.32 | 28.67 | 37.60 | 58.16 | 520.46 | 38.49 | |
| DS18 | 1,088.11 | 398.32 | 330.32 | 2,190.25 | 30.76 | 36.72 | 47.90 | 58.77 | 539.12 | 49.55 | |
| WW20 | 5,125.42 | 1,443.27 | 1,250.37 | 8,450.23 | 18.61 | 28.02 | 33.64 | 69.41 | 2,106.05 | 41.09 | |
| DS20 | 1,200.34 | 718.25 | 300.34 | 3,750.25 | 42.13 | 59.44 | 72.85 | 66.55 | 1,024.36 | 85.34 |
DTF, DTSD, DTR, PH, BNPP, PW, SL, SNPS, SWPP, THSW, HI, and SY are the abbreviations of days to flowering, days to silique development, days to ripening, plant height, branch number/plant, plant weight, silique length, seed number/silique, seed weight/plant, thousand seed weight, harvest index, and seed yield, respectively. WW17, DS17, WW18, DS18, WW20, and DS20 are the codes of the two watering regimes during 3 years: well-watered in 2017, drought stress in 2017, well-watered in 2018, drought stress in 2018, well-watered in 2020, and drought stress in 2020. SD, ECV, PCV, GCV, h2, GA, and GAM are the abbreviations of standard deviation, environmental coefficient of variation, phenotypic coefficient of variation, genotypic coefficient of variation, heritability in the broad sense, genetic advance, and genetic advance as the percentage of the mean of the studied traits at two watering regimes under 3 years.