Phenotypic diversity among finger millet (Eleusine coracana (L.) Gaertn.) landraces of Nepal

Main Article Content

Krishna Ghimire
https://orcid.org/0000-0002-3393-290X
Madhav Prasad Pandey
https://orcid.org/0000-0001-6153-6966
Bal Krishna Joshi
https://orcid.org/0000-0002-7848-5824
Surya Kanta Ghimire
Hira Kaji Manandhar
Devendra Gauchan

Abstract

Finger millet (Eleusine coracana (L.) Gaertn.) is the fourth most important crop in Nepal having multiple benefits but is still neglected by mainstream research and development. The main option to boost its productivity is developing superior varieties through enhanced use of germplasm in breeding programmes. With the objective of enhancing utilization of landraces conserved ex situ, a total of 300 finger millet accessions collected from 54 districts were characterized in three hill locations of Nepal for two consecutive years (2017–2018). Nine qualitative and 17 quantitative traits were recorded, and combined mean data were subjected to multivariate analysis to assess agromorphological diversity. Shannon–Weaver diversity indices (H') showed high diversity (0.647–0.908) among the accessions for qualitative traits except for finger branching and spikelet shattering whereas high diversity (0.864–0.907) was observed for all quantitative traits. The first five principal components (PC) explained 61.8% of the total phenotypic variation with two PCs explaining 37.5% variation mainly due to flowering and maturity days, plant height, flag leaf length, grain and straw yield, ear weight, ear exsertion and number of fingers per head. Genotypes were grouped into four clusters with 16, 66, 107 and 111 accessions based on quantitative traits. The correlation between the traits indicated that accessions with early flowering, tall plants, long leaves, high tillers, large ears and bold grains could be given priority for further evaluation in multiple locations. Potential landraces identified for each trait could either be deployed to wider areas as varieties or used as trait donors in finger millet breeding.

 

 

Article Details

How to Cite
Ghimire, K., Pandey, M. P., Joshi, B. K., Ghimire, S. K., Manandhar, H. K. and Gauchan, D. (2023) “Phenotypic diversity among finger millet (Eleusine coracana (L.) Gaertn.) landraces of Nepal”, Genetic Resources, 4(8), pp. 1–14. doi: 10.46265/genresj.MYZA2446.
Section
Original Articles
Author Biographies

Madhav Prasad Pandey, Agriculture and Forestry University, Faculty of Agriculture, Rampur, Chitwan, Nepal

Professor, Department of Genetics and Plant Breeding, AFU 

Bal Krishna Joshi, National Agriculture Genetic Resources Centre (Genebank), NARC, Khumaltar, Lalitpur, Nepal

Senior Scientist, Plant Breeding and Genetics, NARC

Surya Kanta Ghimire, Agriculture and Forestry University, Faculty of Agriculture, Chitwan, Rampur, Nepal

Professor, Department of Genetics and Plant Breeding, AFU

Hira Kaji Manandhar, Agriculture and Forestry University, Faculty of Agriculture, Chitwan, Rampur, Nepal

Professor, Department of Plant Pathology, AFU 

Devendra Gauchan, Alliance of Bioversity International and CIAT

National Project Manager, Socio-economist, and Agrobiodiversity Expert

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