Claim · model-written summary
The germination-dormancy requirements of bur buttercup seeds are complex.
- Taxon
- Ranunculus testiculatus
Ranunculus testiculatuse0 - Outcome
- germination-dormancy requirementse5
- Qualifier
- obviously complexe5
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bur buttercup (Ranunculus testiculatus Crantz) is an alien annual species that has spread rapidly through range and croplands in the western United States. This species is potentially poisonous and is currently a weed in cereal grain fields. We investigated the germination of the achenes (seeds). About 30% of the seeds of bur buttercup germinated without pretreatment, but only at cool to cold temperatures (maximum germination 28% at 5 degrees C)”
e5“Embryonic plants dissected from the achene costs had 60% germination without additional pretreatment, but only at cool to cold incubation temperatures. The germination-dormancy requirements of bur buttercup seeds are obviously complex, but about 30% of the seeds appear adapted for germination at cold seedbed temperatures, which fits with the extreme ephemeral growth habit of the species”
Title
Germination of Bur Buttercup Seeds
James A. Young; Ellen Martens; Neil E. West Journal of Range Management 1992. doi:10.2307/4003083
Other claims from this paper (12)
- Observation About 30% of bur buttercup seeds germinated without pretreatment, only at cool to cold temperatures.
- Observation Maximum germination of bur buttercup seeds without pretreatment was 28% at 5 degrees C.
- Association Light did not enhance germination of bur buttercup seeds.
- Association Washing did not enhance germination of bur buttercup seeds.
- Association Prechilling did not enhance germination of bur buttercup seeds.
- Association Acid scarification for 25 minutes increased germination of bur buttercup seeds.
- Association Gibberellic acid and potassium nitrate in the substrate synergistically enhanced germination of acid-scarified bur buttercup seeds.
- Observation Pretreated seeds incubated at constant or alternating temperatures reached maximum germination of 70%.
- Observation Temperature regimes with optimum germination of bur buttercup occurred at relatively cool temperatures.
- Association Temperatures above 30 degrees C suppressed germination of bur buttercup seeds.
- Observation Embryonic plants dissected from achene coats had 60% germination without additional pretreatment.
- Observation About 30% of seeds appear adapted for germination at cold seedbed temperatures.