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Maintaining wheat grain number under reproductive-stage drought conditions.

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Unpredictable weather conditions at the time of flowering cause large yield fluctuations on a regular basis... Stabilising productivity of wheat crops in an unpredictable and changing environment requires wheat varieties that are more tolerant to abiotic stress conditions (terminal drought, heat, chilling and frost)... We have identified the genetic loci responsible for maintaining grain number in two wheat doubled haploid populations (Cranbrook x Halberd, Sundor x AUS30604) using hydroponics and osmotic stress as an alternative screening method and are currently evaluating drought tolerance of selected lines of these populations under field conditions...
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