Dormancy studies in seed of Avena fatua. 13. Influence of drought stress during seed development on duration of seed dormancy

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Abstract
Plants of genetically dormant (D) and nondormant (ND) pure lines of A. fatua were exposed to water stress during seed development. In comparison with normally well-watered controls, seeds produced by water-stressed plants exhibited shorter duration of primary dormancy. The magnitude of the effect varied among D families, but was consistently greater than in ND families. Evidently, the dormancy phenotype of D lines is highly plastic and the responses to high temperature and water stress are similar in a given pure line.