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Variations in genotype- and position-dependent seed tuber sprouting linked to skin morphology in white Guinea yam.

Scientific reports - 12 Mar 2026

Olaleye Olajumoke, Iseki Kohtaro

Abstract excerpt

White Guinea yam (Dioscorea rotundata) is a staple tuber crop in West Africa; however, its vegetative propagation is constrained by irregular dormancy and unpredictable sprouting, which reduce planting efficiency and yield stability. This study examined how tuber skin and cortex morphology influence sprouting across 20 D. rotundata genotypes selected from an F₁ cross-population with a relatively uniform genetic...

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Dioscorea
Genotype
Germination
Phenotype
Plant Tubers
Seeds

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PMID: 41820536
DOI: 10.1038/s41598-026-43709-z
PMCID: PMC13103318

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