Resource Efficient pRep Block Designs for Comparing Test Lines vs. Control Line(s) in Early Generation Varietal Trials


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Authors

  • L. N. Vinaykumar
  • Cini Varghese
  • Mohd Harun
  • Sayantani Karmakar
  • Eldho Varghese
  • Seema Jaggi

https://doi.org/10.56093/ijpgr.v39i3.185048

Keywords:

Early generation varietal trials, Information matrix, Multi-environmental trials, Partially replicated designs

Abstract

Efficient resource use is vital in early generation varietal trials (EGVTs), where replicating test lines across environments is often
constrained. Partially replicated (pRep) designs address this by allowing a selective number of replications of test lines. This study
introduces two series of pRep designs for EGVTs, facilitating comparisons between test and control line(s). The general form of the
information matrix for these designs is derived to evaluate their properties, and SAS code was developed to calculate efficiency and
variance factors. The proposed designs offer a flexible and effective framework for conducting EGVTs with fewer replications,
enhancing their applicability across various environments.

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Published

2026-10-28

How to Cite

L. N. Vinaykumar, Cini Varghese, Mohd Harun, Sayantani Karmakar, Eldho Varghese, & Seema Jaggi. (2026). Resource Efficient pRep Block Designs for Comparing Test Lines vs. Control Line(s) in Early Generation Varietal Trials. Indian Journal of Plant Genetic Resources, 39(3). https://doi.org/10.56093/ijpgr.v39i3.185048