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Protocol used for screening under reproductive-stage drought: (A) direct-seeded upland conditions and (B) transplanted lowland conditions. *Upland direct seeded: irrigated when the soil tensiometer shows a reading of –70 kPa at 30cm depth at 10:00h. **Lowland transplanted: irrigated when the water table depth recorded was below 90cm and susceptible checks showed severe leaf rolling and a leaf rolling score of 9 at 10:00h. (This figure is available in colour at JXB online.)
