Estimates of Phenotypic and Genotypic Variance and Heritability in Eighty Nine Bambara Groundnut Vigna subterranea (L.) Verdcourt] Accessions Collected from Six
Regions of Niger

The bambara groundnut [Vigna subterranea (L.) Verdc. (Fabaceae)] is a legume mainly cultivated by women, for the nutritional quality of these seeds. It is a so-called minor culture and the improvement of the plant and its popularization remains to be promoted. The objective of this present work is to evaluate the genetic variability of bambara groundnut accessions. The experiment was carried out according to a completely randomized block device with four replications. Twenty-two (22) characters including four (4) phenological, four (4) morphological and fourteen (14) related to yield were evaluated for accessions characterization. Descriptive analysis showed significant differences. The coefficients of variation ranged from 3.51% (maturity date) to 38.87% (shell weight). Significantly high values (CV˃20%) for 8 of the metric parameters were observed. Pod weight per plant and seed weight per plant (r=0.943), yield in kg/ha (r=0.943); seed weight per plant and yield in kg/ha (r=0.999) showed the strongest correlations. The phenotypic and genotypic coefficients of variation were high for dry biomass weight (PCV=42.23%; GCV=28.40%), shell weight (PCV=63.46%; GCV=22.46%) and 100-seed weight (PCV=25.57%; GCV=25.25%). Maturity date (95.77%) and 100-seed weight (99.84%) had high heritabilities. Broad-sense heritability and genetic gain are high for 100-seed weight (H2=99.84%; GA=52.58%). The Ascending hierarchical classification produced four groups of which group 4 is the most efficient in yield with short (20.58cm) early accessions (80.32 days). Groups 1 and 2 include, late accessions (~22cm) with respectively maturity dates (DM=85.67 days and DM=86.53 days.

Abdou Zakary Yaou Ibrahim    

Maina Fanna    

Harouna Issa Amadou    

Assoumane Aichatou    

Ali Malam Labo Mohamed    

Alhassane Agali    

Idi Saidou Sani    

Annual Research & Review in Biology    

Vigna subterranea L.    

Sahelian zone    

Diversity    

Genotypic    

Niger    

Phenotypic    

fre Gestion durable des terres et restauration des forêts et paysage    

Annual Research & Review in Biology Volume 38, Issue 9, Page 61-79, 2023; Article no.ARRB.110006 ISSN: 2347-565X, NLM ID: 101632869

2023

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fre .pdf

Anglais

Niger    

BIBLIOTHEQUE    

https://www.sdiarticle5.com/review-history/110006

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