Review Article
Rice Breeding for High Grain Yield under Drought: A Strategic Solution to a Complex Problem
Table 2
Selection criterion used at IRRI to identify suitable plants in early-generation (F2) breeding materials.
| | Criterion | Lowland | Upland |
| | Plant type | Erect, compact, high-tillering | Erect, compact, high-tillering | | Maturity (DAS) | Medium: 110–120 | Early: ≤100 | | Late: 121–140 | Medium: 101–110 | | Height (cm) | 100–120 | 100–130 | | Visual yield | Good | Good | | Grain shape* | Long slender | Medium slender | Medium cylinder
Medium bold | Medium bold | | Disease resistance | Resistant to blast and BLB | Resistant to blast and brown spot | | Insect resistance | Brown plant hopper, gall midge | Brown plant hopper, gall midge |
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*Selection for grain shape may vary according to target environment.
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