What does this research mean for the field?

Barley landraces in Nepal exhibit substantial agro-morphological and genetic diversity, forming four distinct clusters with specific accessions (NGRC7732 and NGRCO7726) offering unique genetic backgrounds for breeding and conservation. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Evaluate the agro-morphological and genetic diversity of barley (Hordeum vulgare L.) landraces to identify superior germplasm for breeding and conservation.

August 22, 2026Discover Plants.Open Access

Integrating qualitative and quantitative traits with multivariate analysis to decipher the diversity structure of barley landraces for sustainable agriculture

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Authors

ASAbhisek shrestha KDKrishna Hari Dhakal DGDhurva Prasad Gauchan

Discussion

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Overview

Agronomic field trial reveals substantial phenotypic and genetic diversity across 75 barley landraces, highlighting valuable germplasm for breeding programs.

Key Points

Evaluate the agro-morphological and genetic diversity of barley (Hordeum vulgare L.) landraces to identify superior germplasm for breeding and conservation.
Evaluated 75 barley landraces using an Alpha Lattice design with two replications under field conditions at CNRM Bardibas, Madhesh Province, Nepal.
Measured qualitative and quantitative agro-morphological traits across vegetative and reproductive growth stages.
Conducted analysis of variance (ANOVA), Shannon-Wiener diversity index calculations, principal component analysis (PCA), and both K-means and Ward's hierarchical clustering.
ANOVA demonstrated highly significant genotypic differences (p < 0.001) for key traits, including days to flowering (78.5–123 days), days to maturity (115–148 days), sterility (5.6–84.6%), and plot yield (3.0–181.2 g/plot).
High phenotypic diversity was recorded with Shannon-Wiener diversity indices reaching 0.994 for grain surface, 0.997 for rachilla hair, and 0.976 for grain crease width.
PCA showed that PC1 and PC2 accounted for 54.89% of total variance, while cluster analyses consistently grouped landraces into four distinct clusters and highlighted distinct genotypes NGRC7732 and NGRCO7726.

Cite This Study

shrestha et al. (2026) studied this question.

synapsesocial.com/papers/6a895eeeca7ade938187d248 https://doi.org/10.1007/s44372-026-00783-x

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August 22, 2026Discover Plants.Open Access

Integrating qualitative and quantitative traits with multivariate analysis to decipher the diversity structure of barley landraces for sustainable agriculture

View Full Paper

Ask AI

Bookmark

Authors

ASAbhisek shrestha KDKrishna Hari Dhakal DGDhurva Prasad Gauchan

Discussion

Member takes

Overview

Agronomic field trial reveals substantial phenotypic and genetic diversity across 75 barley landraces, highlighting valuable germplasm for breeding programs.

Key Points

Evaluate the agro-morphological and genetic diversity of barley (Hordeum vulgare L.) landraces to identify superior germplasm for breeding and conservation.
Evaluated 75 barley landraces using an Alpha Lattice design with two replications under field conditions at CNRM Bardibas, Madhesh Province, Nepal.
Measured qualitative and quantitative agro-morphological traits across vegetative and reproductive growth stages.
Conducted analysis of variance (ANOVA), Shannon-Wiener diversity index calculations, principal component analysis (PCA), and both K-means and Ward's hierarchical clustering.
ANOVA demonstrated highly significant genotypic differences (p < 0.001) for key traits, including days to flowering (78.5–123 days), days to maturity (115–148 days), sterility (5.6–84.6%), and plot yield (3.0–181.2 g/plot).
High phenotypic diversity was recorded with Shannon-Wiener diversity indices reaching 0.994 for grain surface, 0.997 for rachilla hair, and 0.976 for grain crease width.
PCA showed that PC1 and PC2 accounted for 54.89% of total variance, while cluster analyses consistently grouped landraces into four distinct clusters and highlighted distinct genotypes NGRC7732 and NGRCO7726.

Cite This Study

shrestha et al. (2026) studied this question.

synapsesocial.com/papers/6a895eeeca7ade938187d248 https://doi.org/10.1007/s44372-026-00783-x

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