A partnership program of Embrapa and BASF resulted in the development of a new irrigated rice cultivar adapted to the Clearfield® production system in Rio Grande do Sul. The cultivar is tolerant to the imidazolinone herbicide kifix®. In field trials in Rio Grande do Sul it produced a mean yield of 8394 kg ha-1.
Key words:
Oryza sativa L.; herbicide tolerant; grain yield; genetic improvement.
| Cultivar | YLD1 (kg ha-1) | FLO (days) | HGT (cm) | LOD2 (1-9) |
|---|---|---|---|---|
| BRS A701 CL | 8394 ab | 89 ab | 86 a | 3 |
| BRS 7 Taim | 8232 a | 91 a | 85 a | 1 |
| BRS Pelota | 8108 b | 88 b | 91 b | 2 |
| Mean | 8080 | 90 | 89 | |
| CV (%) | 14.71 | 1.68 | 4.19 |
| Cultivar | MQ (%) | SG (%) | TG (%) | GC (%) | LSC1 | BS1 | GS1 |
|---|---|---|---|---|---|---|---|
| BRS A701 CL | 67.02 | 4.48 | 71.50 | 2.37 | 2 | 4 | 3 |
| BRS 7 Taim | 65.65 | 6.34 | 71.99 | 2.92 | 3 | 3 | 3 |
| BRS Pelota | 63.38 | 7.27 | 70.65 | 2.65 | 3 | 2 | 2 |
| Descriptor | Phenotype |
|---|---|
| Leaf color | Green |
| Angle of flag leaf | Erect |
| Leaf pubescence | Absent (glabrous leaves) |
| Leaf: auricle color | Light green |
| Leaf: ligule color | Absent to green |
| Stem length | Short (65 cm) |
| Panicle length | Median (21 cm) |
| Presence of awn | Absent or very short |
| Spiklets: glume color | Beige/Golden |
| Spiklets: apiculus | Yellow |
| Dehulled grain length | Long (7.08 mm) |
| 1000-grain weight | 24.1 to 25.5 g |
