Ricebean Germplasm Phenotyping with 1,589 Accessions Across Two Indian Sites

Multi-environment phenotyping data for 1,589 ricebean (Vigna umbellata) accessions from the Indian National Gene Bank, assessed in New Delhi and Almora. It documents phenotypic variations for traits like days to flowering, pod length, seeds per pod, and seed weight, and includes a derived core set of 251 accessions. The data was generated by Gayacharan to support crop improvement programs.

Use Cases

• Analyze phenotypic variation for days to flowering and seed weight across two agro-ecological regions (New Delhi and Almora).
• Identify stable, high-performing accessions for traits like pod length and seeds per pod using multi-environment GGE biplot analysis.
• Evaluate core set sampling algorithms (MStrat, PowerCore, PCSS, CoreHunter) using diversity indices like mean difference percentage (MD%) and variance difference percentage (VD%).
• Compare promising genotypes such as IC351508 and IC352944 for determinate growth habit and yield potential against other accessions.

Strengths

• Includes 1,589 ricebean accessions, providing a substantial genetic resource.
• Phenotyping conducted in two diverse agro-ecological regions (New Delhi and Almora), capturing environmental interactions.
• Core set of 251 accessions (14.3% of the collection) was validated using multiple diversity indices and clustering methods.

Limitations

• Data is provided in a DOCX file format, which is not ideal for direct computational analysis and requires extraction.
• The underlying raw data structure (rows, columns) is not specified, complicating initial assessment of its tabular form.
• Phenotypic data is limited to two locations in India, which may not represent the full range of global growing conditions.

Provenance

Source

Indian National Gene Bank.

Collection Method

Multi-environment phenotyping of germplasm accessions, with core set sampling using algorithms like MStrat and CoreHunter.

Freshness

Last updated March 20, 2026.

Geography

India (specifically New Delhi and Almora).