ArticleEcology and evolution2021
Root morphological responses to population density vary with soil conditions and growth stages: The complexity of density effects.
Article in Ecology and evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 39 citations in OpenAlex.
- Dynamic morphological plasticity in response to emergence timing inPlant-environment interactions (Hoboken, N.J.) · 2022Article
- Phenotypic variation in photosynthetic traits in wheat grown under field versus glasshouse conditions.Journal of experimental botany · 2022Article
- Associations between leaf developmental stability, variability, canalization, and phenotypic plasticity inEcology and evolution · 2022Article
- Biomass Allocation Responses to Root Interactions in Wheat Cultivars Support Predictions of Crop Evolutionary Ecology Theory.Frontiers in plant science · 2022Article
- Morphological canalization, integration, and plasticity in response to population density inEcology and evolution · 2021Article
- Root morphological responses to population density vary with soil conditions and growth stages: The complexity of density effects.Ecology and evolution · 2021Article
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Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimHow plants cope with increases in population density via root plasticity is not well documented, although abiotic environments and plant ontogeny may have important roles in determining root response to density. To investigate how plant root plasticity in response to density varies with soil conditions and growth stages, we conducted a field experiment with an annual herbaceous species (
methodsPlants were grown at low, medium, and high densities (13.4, 36.0, and 121.0 plants m
resultsRoot allocation increased, decreased, or canalized in response to density, depending on soil conditions and stages of plant growth, indicating the complex effects of population density, including both competitive and facilitative effects. MAIN
conclusionsRoot allocation was promoted by neighbor roots at early stages and in abundant resource availability, due to low-to-moderate belowground interactions among smaller plants, leading to facilitation. As plants grew, competition intensified and infertile soil aggravated belowground competition, leading to decreased root allocation in response to density. Root growth may be more likely restricted horizontally rather than vertically by the presence of neighbor, suggesting a spatial orientation effect in their responses to density. We emphasized the importance of considering effects of abiotic conditions and plant growth stages in elucidating the complexity of density effects on root traits.
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