Ecology · 1969 · 22 citations · 0 references
AgriculturePlant BiologyPlant SciencesSeed ScienceWeed BiologyWeed Population DynamicsPopulation Genetics In PlantsSeed GeneticsWeed GeneticsWeed GerminationWeed Population EcologyWeed Seed BiologyGermination CharacterizationPopulation Genetics Of WeedsSeed Germination EcologySeed Germination GeneticsSeed Germination TraitsSeed Germination VariabilitySeed PolymorphismSeedling Trait Variation
Germination tests were conducted on seed from individual plants and from bulk samples representing 174 populations and 105 species to survey the prevalence of germination polymorphism in flowering plants in Utah and surrounding areas. Twenty—two populations representing 15 species (about 1/8 of the populations sampled) exhibited polymorphism, as measured by the germination of seed from individuals of percentages significantly different from those of bulk samples. Several of the 15 species, including Bromus tectorum, Rumex crispus, and Amaranthus retroflexus, were represented by populations with germination polymorphism and by populations without it.