Claim · model-written summary
Limited soil volume or low nutrients increased root to shoot ratios.
- Taxon
- plantsViridiplantaee0
- Treatment
- limited soil volume or low nutrient additione0
- Outcome
- root to shoot ratiose0
- Direction
- highere0
- Comparator
- more favorable growing conditionse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Verbatim
e0“plants had higher root to shoot ratios in less favorable growing conditions (limited soil volume or low nutrient addition), compared to more favorable growing conditions”
Title
Demography and individual growth of two introduced Bromus species
Rabie, Paul A. Washington State University 2010. doi:10.7273/000006007
Other claims from this paper (14)
- Intervention effect Smaller pots, less water, and less nutrient addition reduced maximum size in both species.
- Intervention effect The three restrictive conditions decreased growth rates.
- Intervention effect The three restrictive conditions delayed most rapid growth.
- Observation B. tectorum allocated more biomass to roots than B. briziformis in every treatment.
- Intervention effect Neither species changed root allocation with water availability.
- Observation B. tectorum population growth was 2 to 3.5 times that of B. briziformis.
- Observation B. tectorum plants were larger than B. briziformis.
- Observation B. tectorum had lower leaf nitrogen than B. briziformis.
- Observation B. tectorum produced nearly three times as many seeds as B. briziformis.
- Intervention effect Fertilization increased plant size at one site.
- Intervention effect Fertilization increased seed production at one site.
- Intervention effect Watered plants were more depleted in 13C at one site.
- Intervention effect Fertilizer and water treatments did not change population growth rates.
- Association Population growth rates differed by species and site.