Phosphorus Deficiency Effects on Biomass and Root Traits in 200 Medicago Accessions

200 genetically diverse Medicago sativa accessions were assessed under high and low phosphorus conditions in a greenhouse experiment. Shoot and root dry matter decreased by 24% and 23% respectively under low P, while phosphorus utilisation efficiency increased by 38% in a 20-accession subset. The dataset, authored by Nagarjun Devabhakthini and last updated in April 2026, includes results from rhizotron root system architecture analysis and genome-wide association studies.

Use Cases

• Identify candidate genes for phosphorus efficiency based on genome-wide association study results mentioned in the description
• Analyze root system architecture plasticity under nutrient stress using rhizotron analysis data
• Compare phenotypic variation in shoot and root biomass across 200 accessions under different phosphorus conditions
• Select genetic resources for breeding based on stable biomass production and high phosphorus utilisation efficiency

Strengths

• Dataset covers 200 genetically diverse Medicago sativa accessions, providing a broad genetic base for analysis
• Includes detailed root system architecture analysis for a 20-accession subset using a rhizotron system
• Quantifies specific biomass changes, such as a 24% decrease in shoot dry matter under low phosphorus

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• The 105.3 KB file size suggests a limited scope, likely containing summary statistics rather than raw experimental data

Provenance

Source

figshare, author Nagarjun Devabhakthini

Collection Method

Greenhouse experiment and rhizotron analysis on Medicago sativa accessions under controlled phosphorus conditions

Freshness

Last updated 2026-04-23 05:35:07