Genotype by trait biplot analysis to study associations and profiles of Ethiopian white lupin (Lupinus albus) landraces
Limited information is available on trait relations and profiles of white lupin landraces in tropical growing conditions including Ethiopia. The objectives of this study were to understand the relationships among traits, and to document trait profile of Ethiopian white lupin landraces. As a component of this study, two sets of experiments were conducted. The first comprehensive experiment that consisted of 144 accessions collected from major lupin growing areas of Ethiopia was evaluated at Merawi and the second experiment that consisted of 12 selected accessions was evaluated across six locations. In both experiments, significant variations were observed among the accessions for most studied traits. Higher heritability and genetic advance as percent of mean was observed for grain yield, indicating the possibility of improving this trait through selection. Genotype by trait biplots captured 55% - 66% of the variations due to genotype by trait interactions. Trait association and trait profile biplots were constructed for highland, mid altitude and low land environments, and across all locations. Different patterns of associations and genotype (accession) by trait interactions were observed in different environments. However, genotype by trait biplots consistently indicated that grain yield had positive associations with most of the traits; especially, with number of pods per plant, plant height and seeds per pod. The study identified some accession with desirable performances as good for specific trait and/or trait groups that could be considered as sources of genes for the traits they have best performed. G8 consistently showed higher grain yield, G2 had higher number of branches and higher number of seeds per plant, G7 had more number of pods per plant and larger seed size and G4 produced longer pods. The accessions used in this study were found to be useful sources for genetic variability for future breeding that targets to improve grain yield and other agronomic traits of white lupin in Ethiopia.
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Southern Cross Publishing Group
2017
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Subjects: | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY, Genotype by Location Interaction, Mega-Environments, Trait Inheritance, GENOTYPES, ENVIRONMENT, SELECTION, GENETIC INHERITANCE, |
Online Access: | http://hdl.handle.net/10883/18873 |
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dig-cimmyt-10883-188732023-11-30T15:48:13Z Genotype by trait biplot analysis to study associations and profiles of Ethiopian white lupin (Lupinus albus) landraces Atnaf, M. Kassahun, T. Kifle, D. Dagne Wegary Gissa AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Genotype by Location Interaction Mega-Environments Trait Inheritance GENOTYPES ENVIRONMENT SELECTION GENETIC INHERITANCE Limited information is available on trait relations and profiles of white lupin landraces in tropical growing conditions including Ethiopia. The objectives of this study were to understand the relationships among traits, and to document trait profile of Ethiopian white lupin landraces. As a component of this study, two sets of experiments were conducted. The first comprehensive experiment that consisted of 144 accessions collected from major lupin growing areas of Ethiopia was evaluated at Merawi and the second experiment that consisted of 12 selected accessions was evaluated across six locations. In both experiments, significant variations were observed among the accessions for most studied traits. Higher heritability and genetic advance as percent of mean was observed for grain yield, indicating the possibility of improving this trait through selection. Genotype by trait biplots captured 55% - 66% of the variations due to genotype by trait interactions. Trait association and trait profile biplots were constructed for highland, mid altitude and low land environments, and across all locations. Different patterns of associations and genotype (accession) by trait interactions were observed in different environments. However, genotype by trait biplots consistently indicated that grain yield had positive associations with most of the traits; especially, with number of pods per plant, plant height and seeds per pod. The study identified some accession with desirable performances as good for specific trait and/or trait groups that could be considered as sources of genes for the traits they have best performed. G8 consistently showed higher grain yield, G2 had higher number of branches and higher number of seeds per plant, G7 had more number of pods per plant and larger seed size and G4 produced longer pods. The accessions used in this study were found to be useful sources for genetic variability for future breeding that targets to improve grain yield and other agronomic traits of white lupin in Ethiopia. pages 55-62 2017-08-23T15:41:23Z 2017-08-23T15:41:23Z 2017 Article http://hdl.handle.net/10883/18873 10.21475/ajcs.2017.11.01.pne226 English CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose. Open Access PDF Australia Southern Cross Publishing Group 1 11 Australian Journal of Crop Science |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Genotype by Location Interaction Mega-Environments Trait Inheritance GENOTYPES ENVIRONMENT SELECTION GENETIC INHERITANCE AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Genotype by Location Interaction Mega-Environments Trait Inheritance GENOTYPES ENVIRONMENT SELECTION GENETIC INHERITANCE |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Genotype by Location Interaction Mega-Environments Trait Inheritance GENOTYPES ENVIRONMENT SELECTION GENETIC INHERITANCE AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Genotype by Location Interaction Mega-Environments Trait Inheritance GENOTYPES ENVIRONMENT SELECTION GENETIC INHERITANCE Atnaf, M. Kassahun, T. Kifle, D. Dagne Wegary Gissa Genotype by trait biplot analysis to study associations and profiles of Ethiopian white lupin (Lupinus albus) landraces |
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Limited information is available on trait relations and profiles of white lupin landraces in tropical growing conditions including Ethiopia. The objectives of this study were to understand the relationships among traits, and to document trait profile of Ethiopian white lupin landraces. As a component of this study, two sets of experiments were conducted. The first comprehensive experiment that consisted of 144 accessions collected from major lupin growing areas of Ethiopia was evaluated at Merawi and the second experiment that consisted of 12 selected accessions was evaluated across six locations. In both experiments, significant variations were observed among the accessions for most studied traits. Higher heritability and genetic advance as percent of mean was observed for grain yield, indicating the possibility of improving this trait through selection. Genotype by trait biplots captured 55% - 66% of the variations due to genotype by trait interactions. Trait association and trait profile biplots were constructed for highland, mid altitude and low land environments, and across all locations. Different patterns of associations and genotype (accession) by trait interactions were observed in different environments. However, genotype by trait biplots consistently indicated that grain yield had positive associations with most of the traits; especially, with number of pods per plant, plant height and seeds per pod. The study identified some accession with desirable performances as good for specific trait and/or trait groups that could be considered as sources of genes for the traits they have best performed. G8 consistently showed higher grain yield, G2 had higher number of branches and higher number of seeds per plant, G7 had more number of pods per plant and larger seed size and G4 produced longer pods. The accessions used in this study were found to be useful sources for genetic variability for future breeding that targets to improve grain yield and other agronomic traits of white lupin in Ethiopia. |
format |
Article |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Genotype by Location Interaction Mega-Environments Trait Inheritance GENOTYPES ENVIRONMENT SELECTION GENETIC INHERITANCE |
author |
Atnaf, M. Kassahun, T. Kifle, D. Dagne Wegary Gissa |
author_facet |
Atnaf, M. Kassahun, T. Kifle, D. Dagne Wegary Gissa |
author_sort |
Atnaf, M. |
title |
Genotype by trait biplot analysis to study associations and profiles of Ethiopian white lupin (Lupinus albus) landraces |
title_short |
Genotype by trait biplot analysis to study associations and profiles of Ethiopian white lupin (Lupinus albus) landraces |
title_full |
Genotype by trait biplot analysis to study associations and profiles of Ethiopian white lupin (Lupinus albus) landraces |
title_fullStr |
Genotype by trait biplot analysis to study associations and profiles of Ethiopian white lupin (Lupinus albus) landraces |
title_full_unstemmed |
Genotype by trait biplot analysis to study associations and profiles of Ethiopian white lupin (Lupinus albus) landraces |
title_sort |
genotype by trait biplot analysis to study associations and profiles of ethiopian white lupin (lupinus albus) landraces |
publisher |
Southern Cross Publishing Group |
publishDate |
2017 |
url |
http://hdl.handle.net/10883/18873 |
work_keys_str_mv |
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_version_ |
1787232932442669056 |