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  • Post-shedding seed development in Galanthus and Narcissus
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    Post-shedding seed development in Galanthus and Narcissus

    Seeds of the moist temperate woodland species Galanthus nivalis and Narcissus pseudonarcissus, which disperse during spring or early summer, germinate poorly in laboratory tests. Newton et al. study seed characteristics and find a distinct typology of seed development matching their ecological niche, whereby seeds are dispersed close to the end of seed filling without substantial developmental […] More

  • Parental environment and seed response to karrikinolide
    in

    Parental environment and seed response to karrikinolide

    Seeds from different populations of the same species often show distinct germination responses to the smoke-derived chemical karrikinolide (KAR1), thus limiting its potential for use in weed management. Gorecki et al. study the effect of the environment during seed development (i.e. the parental envioronment) on the KAR1-response of seeds from different populations of Brassica tournefortii and […] More

  • Plant embryo
    in

    Windows of opportunity in embryo development

    Variation in mature seed size is the result of a complex array of interactions involving genes, genomes and environment that may change during development. Diggle et al. (pp. 309–319) study the dynamics of embryo and seed development in Raphanus sativus and find that there is evidence for a paternal role as well as the expected […] More