Table 1. Descriptive sttistics of eight traits of the JWC accessions in five years.
| Traits a | Year | Range | Mean | SD b | CV (%) c | h2 (%) d | Significance e | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Genotype | Year | |||||||||
| DH (days) | 2016 | 163.0 | – | 194.7 | 177.4 | 7.89 | 4.5 | 90.4 | ** | ** |
| 2017 | 163.0 | – | 195.3 | 179.6 | 6.90 | 3.8 | ||||
| 2018 | 152.5 | – | 186.0 | 165.1 | 6.35 | 3.8 | ||||
| 2019 | 153.7 | – | 197.3 | 179.6 | 8.29 | 4.6 | ||||
| 2020 | 145.7 | – | 190.0 | 169.8 | 10.40 | 6.1 | ||||
| CL (cm) | 2016 | 61.0 | – | 177.3 | 111.8 | 26.84 | 24.0 | 90.0 | ** | ** |
| 2017 | 34.3 | – | 132.5 | 78.8 | 19.17 | 24.3 | ||||
| 2018 | 49.6 | – | 145.2 | 86.3 | 21.04 | 24.4 | ||||
| 2019 | 61.2 | – | 187.9 | 110.5 | 29.90 | 27.1 | ||||
| 2020 | 54.9 | – | 181.2 | 102.7 | 27.80 | 27.1 | ||||
| SL (cm) | 2016 | 7.0 | – | 15.0 | 10.6 | 1.72 | 16.2 | 86.9 | ** | ** |
| 2017 | 7.0 | – | 16.4 | 12.1 | 1.99 | 16.4 | ||||
| 2018 | 7.3 | – | 16.4 | 10.6 | 2.24 | 21.1 | ||||
| 2019 | 7.8 | – | 18.2 | 11.9 | 1.94 | 16.3 | ||||
| 2020 | 7.5 | – | 17.2 | 11.8 | 2.16 | 18.3 | ||||
| SNS (spikelets/spike) | 2016 | 14.7 | – | 26.7 | 22.1 | 2.72 | 12.3 | 72.8 | ** | ** |
| 2017 | 16.0 | – | 27.7 | 22.7 | 2.31 | 10.2 | ||||
| 2018 | 16.5 | – | 26.0 | 21.3 | 1.76 | 8.3 | ||||
| 2019 | 18.7 | – | 29.0 | 22.9 | 2.19 | 9.6 | ||||
| 2020 | 17.0 | – | 28.3 | 22.3 | 2.42 | 10.9 | ||||
| SD (spikes/cm) | 2016 | 1.51 | – | 3.37 | 2.13 | 0.39 | 18.3 | 86.9 | ** | ** |
| 2017 | 1.37 | – | 3.25 | 1.93 | 0.39 | 20.0 | ||||
| 2018 | 1.23 | – | 3.01 | 2.08 | 0.39 | 18.5 | ||||
| 2019 | 1.38 | – | 3.30 | 1.97 | 0.35 | 18.0 | ||||
| 2020 | 1.27 | – | 2.97 | 1.94 | 0.36 | 18.3 | ||||
| GNS (grains/spike) | 2016 | 34.6 | – | 98.1 | 62.4 | 11.41 | 18.3 | 71.8 | ** | ** |
| 2017 | 35.4 | – | 93.6 | 67.9 | 10.84 | 16.0 | ||||
| 2018 | 37.2 | – | 100.8 | 67.6 | 11.38 | 16.8 | ||||
| 2019 | 39.1 | – | 96.6 | 69.8 | 12.66 | 18.1 | ||||
| 2020 | 28.5 | – | 99.0 | 69.1 | 13.60 | 19.7 | ||||
| GNSL (grains/spikelet) | 2016 | 1.45 | – | 3.74 | 2.85 | 0.51 | 17.8 | 71.3 | ** | ** |
| 2017 | 1.50 | – | 4.49 | 3.02 | 0.56 | 18.6 | ||||
| 2018 | 1.67 | – | 4.38 | 3.18 | 0.48 | 15.2 | ||||
| 2019 | 1.52 | – | 4.11 | 3.06 | 0.55 | 17.9 | ||||
| 2020 | 1.46 | – | 4.57 | 3.13 | 0.65 | 20.8 | ||||
| TKW (g) | 2016 | 24.8 | – | 54.1 | 38.3 | 6.65 | 17.4 | 79.2 | ** | ** |
| 2017 | 25.7 | – | 54.5 | 38.6 | 6.05 | 15.7 | ||||
| 2018 | 31.5 | – | 54.9 | 40.7 | 5.23 | 12.9 | ||||
| 2019 | 25.6 | – | 47.5 | 36.1 | 4.75 | 13.2 | ||||
| 2020 | 26.8 | – | 58.0 | 37.5 | 6.22 | 16.6 | ||||
a DH, days to heading; CL, culm length; SL, spike length; SNS, spikelet numbers per spike; SD, spike density; GNS, grain numbers per spike; GNSL, grain numbers per spikelet; TKW, thousand-kernel weight. b Standard deviation. c Coefficint of variation. d Broad-sense heritability. eSignificance, ** at p < 0.01.