SCSBRS126 Dueto is a late-maturing high yield performing cultivar released by Epagri/Embrapa/Udesc. It has high tillering capacity, but poor resistance to lodging, medium resistance to blast, with long, slender grains and good sensory/cooking traits, and it has lower sterility under cold stress at microsporogenesis/anthesis and under heat at anthesis.
Keywords:
Oryza sativa; Extreme temperatures; Low and high temperatures; Climatic changes
| Plant trait / descriptor | Description or Code (MAPA1 - IRRI2) | |
|---|---|---|
| Leaf color | 1, 4 | Green (2) |
| Leaf pubescence | 1, 4 | Medium (3) |
| Auricle color | 1, 4 | Green (1) |
| Ligule color | 1, 4 | Green or colorless (1) |
| Flag leaf angle | 1, 4 | Upright (1) |
| Plant height (culm length) | 1, 3, 4 | 87 cm at the DHE Trials (76 cm at VCU) |
| Culm width | 1, 4 | 4.1 mm |
| Tillering angle | 1, 4 | Upright (1) |
| Internode color | 1, 4 | Light Green (1) |
| Anthocyanin node color | 1, 4 | Absent/Weak (1) |
| Panicle length | 1, 4 | 25.7 cm |
| Type of panicle | 1, 4 | Intermediate (3) |
| Panicle exsertion | 1, 4 | Complete (1) |
| Shattering | 1, 4 | Intermediate (3) |
| Awns | 1, 4 | Present (0), but rare |
| Awns length | 1, 4 | ------- (1) (≈ 1-2 mm) |
| Stigma color | 1, 4 | Green (1) |
| Lemma/Palea pubescence | 1, 4 | Medium (5) |
| Keel's color (flowering) | 1, 4 | Green (2) |
| Keel's color (maturing) | 1, 4 | Yellow (2) |
| Glume color (palea/lemma) | 1, 4 | Golden/straw (1) |
| Sterile lemmas color (glumes) | 1, 4 | Straw (1) |
| Cycle to maturity | 1, 3 | Late maturing (142 -144 Days) |
| Leaf blast | 1, 3 | Moderately resistant |
| Panicle blast | 1, 3 | Moderately resistant |
| Brown spot | 1, 3 | Moderately susceptible |
| Leaf Scald | 1, 3 | Moderately susceptible |
| Sheath rot | 1, 3 | Moderately susceptible |
| False smut | 1, 3 | Moderately susceptible |
| Iron toxicity tolerance | 2 | Moderately susceptible (5.7) |
| Tillering | 1, 3 | Very High |
| Lodging (≥ 400 m altitude) | 1, 3 | Moderately susceptible |
| Lodging (≤ 400 m altitude) | 1, 3 | Susceptible |
| Location SC | Itajaí | Massaranduba | Mirim Doce | Turvo | Average1 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Crop season | 17-18 | 18-19 | 19-20 | 17-18 | 18-19 | 19-20 | 17-18 | 18-19 | 19-20 | 17-18 | 18-19 | 19-20 | |
| Cultivar | |||||||||||||
| SCSBRS126 Dueto | 10.788 | 9560* | 13.696 | 9.731 | 9.405 | 12.536 | 10.586 | 9.733 | 7.695 | 10.708 | 11.229 | 7820** | 10.290a |
| SCS116 Satoru | 10.673 | 10.334 | 11.975 | 7.358 | 8.504 | 11.194 | 7.689 | 9.160 | 8.839 | 10.625 | 7.197 | 9.347 | 9.408a |
| SCS122 Miura | 12.265 | 11.233 | 14.175 | 8.543 | 8.332 | 10.337 | 8.779 | 10.037 | 9.241 | 10.042 | 7.918 | 8.909 | 9.984a |
| Location RS | Alegrete | Uruguaiana | Capão do Leão | Sta Vitória do Palmar | Average2 | ||||||||
| Crop season | 20-21 | 21-22 | 20-21 | 21-22 | 20-21 | 21-22 | 21-22 | ||||||
| Cultivar | Trial 1 | Trial 2 | Trial 1 | Trial 2 | Trial 1 | Trial 2 | Trial1 | Trial 2 | Trial1 | Trial 2 | Trial 1 | ||
| SCSBRS126 Dueto | 12.281 | 12.200 | 13.362 | 13.394 | 14.422 | 13.588 | 14.059 | 7.170 | ** | 11.698 | 10.749 | 7.126 | 11667a |
| BRS Pampeira | 11.284 | 11.394 | 13.226 | 12.809 | 15.703 | 12.238 | 13.761 | 8.718 | ** | 10.696 | 10.223 | 7.582 | 11386a |
| BR-IRGA 409 | 10.700 | 10.556 | 9.899 | 10.295 | 10.803 | 9.984 | 11.211 | 12.827 | 9.716 | 8.898 | 6.624 | 9907b | |
| Trait | Cultivar | ||
|---|---|---|---|
| SCSBRS126 Dueto | SCS116 Satoru | SCS122 Miura | |
| Total milled grains (%)3 | 67.94 | 66.10 | 66.95 |
| Whole grains (%)3 | 60.01 | 56.72 | 58.65 |
| Broken grains (%)3 | 7.93 | 9.38 | 8.30 |
| Amylose content (%)1 | 24.28 | 24.87 | 25.00 |
| Gelatinization temp.1 | 6.98 | 2.55 | 2.58 |
| Grains chalked area (%)3 | 4.24 | 4.02 | 2.81 |
| Chalked grains (%)3 | 6.66 | 6.95 | 5.08 |
| Grain length (mm) 3 | 7.09 | 7.13 | 7.24 |
| Grain width (mm) 3 | 1.99 | 2.16 | 2.09 |
| Grain thickness (mm) 3 | 1.73 | 1.72 | 1.70 |
| Length-Width ratio3 | 3.56 | 3.30 | 3.46 |
| Thousand grain weight4 | 27.75 | 28.5 | 27.9 |
| Texture | Color | Stickiness | Characteristic odor | Characteristic taste | |
|---|---|---|---|---|---|
| SCSBRS126 Dueto | 2.0 | 2.4 | 2.9 | 0.5 | 0.8 |
| SCS116 Satoru | 3.4 | 1.3 | 5.2 | 1.0 | 0.9 |
| SCS122 Miura | 3.2 | 1.8 | 5.2 | 0.8 | 0.9 |
