BRS A705 is an early-maturing cultivar developed by Embrapa, recommended for irrigated cultivation. The plants have high tillering and moderate resistance to the main diseases. This cultivar has short stature, which confers a greater tolerance to lodging. It presents high yield and long and fine grains of excellent quality.
Keywords:
Oryza sativa L.; genetic breeding; grain quality
| Traits | Cultivar | |
|---|---|---|
| Plants* | BRS A705 | BRS Pampa CL |
| Plant type | modern | modern |
| Initial vigor | early | early |
| Cycle (days from emergence to 50% flowering) | 89 | 87 |
| Maturation | 120 | 118 |
| Plant height (cm) | 85 | 95 |
| Stem length (cm) | 65 | 75 |
| Panicle length (cm) | 24 | 23 |
| Panicle exsertion | average | average |
| Leaf color | green | green |
| Flag leaf angle | erect | erect |
| Panicle type | intermediate | intermediate |
| Hairiness | present | present |
| Degraining | intermediate | intermediate |
| Lodging | resistant | moderately resistant |
| Tillering | high | high |
| Indirect iron toxicity | moderately resistant | moderately resistant |
| Leaf blast | moderately resistant | moderately resistant |
| Panicle blast | moderately resistant | moderately resistant |
| Grain staining | moderately resistant | moderately resistant |
| Herbicide resistance | susceptible | resistant |
| Grains * | ||
| Class | long and thin | long and thin |
| Awn | absent | absent |
| Color of glumes | straw | straw |
| Color of the apiculus | white | white |
| Hairiness | present | present |
| Length with shell (mm) | 9.61 | 9.80 |
| Polished length (mm) | 7.20 | 7.16 |
| Width with shell | 2.35 | 2.19 |
| Polished width (mm) | 2.17 | 2.00 |
| Thickness with shell | 2.04 | 1.95 |
| Polished thickness(mm) | 1.86 | 1.74 |
| Polished length/width ratio (mm) | 3.32 | 3.58 |
| Thousand grain weight (g) | 27.6 | 25.1 |
| Total productivity (%) | 70.5 | 68 |
| Whole grains (%) | 62.3 | 62 |
| Amylose | high | high |
| Gelatinization temperature | low | low |
| Yield (t ha-1)** | 10 | 10.2 |
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