Characterization of macro and micro-minerals in cassava leaves from genotypes planted in three different agroecological locations in Nigeria

Diversity in the mineral composition of cassava leaves bred in sub-Saharan Africa has not been fully investigated. This study characterized macro and micro-minerals in 400 genotypes of Cassava leaves planted in three different agroecological environments in Nigeria. Laboratory analysis of the leaves...

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Main Authors: Emmanuel Oladeji Alamu, Alfred Dixon, Tolu Emma Eyinla, Busie Maziya-Dixon
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844022029061
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author Emmanuel Oladeji Alamu
Alfred Dixon
Tolu Emma Eyinla
Busie Maziya-Dixon
author_facet Emmanuel Oladeji Alamu
Alfred Dixon
Tolu Emma Eyinla
Busie Maziya-Dixon
author_sort Emmanuel Oladeji Alamu
collection DOAJ
description Diversity in the mineral composition of cassava leaves bred in sub-Saharan Africa has not been fully investigated. This study characterized macro and micro-minerals in 400 genotypes of Cassava leaves planted in three different agroecological environments in Nigeria. Laboratory analysis of the leaves was done using an Inductively Coupled Optical Emission Spectrometer. Across all three locations sampled in this study, the iron content ranged from 43 to 660 mg/kg, zinc from 16 to 440 mg/kg, Manganese 16–61mg/kg, Copper 0.7–14 mg/kg, Aluminum 5.3–630 mg/kg. Among the macro elements, Calcium ranged from 3600 to 17600 mg/kg, Magnesium 1760–6500 mg/kg, Sodium 0.4–720 mg/kg, Potassium 3100–27000 mg/kg. When the location effect was tested, there was a significant difference among the genotypes for all elements. Cluster analysis resulted in five clusters containing 187, 147, 60, 2, and 4 genotypes, respectively. Cluster 2 contained eight varieties (01/0046, 94/0020, 93/0098, 88/112-7(3X), I00/0017, 91/00417, I00/0017, 88/112-7(3X)) that possessed the highest mineral compositions in Fe, Al, Ti, Na, K, S, Mn, and B, respectively. Genotypes 93/0681(4X), 92/0430, and 95/0460 in cluster 3 had the highest concentrations of Mg, Na, and Zn, respectively. The correlation results showed a notable positive relationship among iron with zinc, copper, aluminum, and titanium (r = 0.33, 0.39, 0.48, and 0.56, respectively), zinc with nickel, titanium, and sulphur (r = 0.52, 0.3,2 and 0.51, respectively) while calcium negatively correlated with potassium (r = ‒ 0.31), phosphorus (r = ‒0.41). This study provides evidence that genotypic diversity exists for mineral composition in cassava leaves and, therefore, can be exploited for genetic improvement by breeders seeking solutions to reduce persistent mineral deficiencies in sub-Saharan Africa.
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spelling doaj.art-100899b51ea84286a5436c4f8a31bd4f2022-12-22T04:35:58ZengElsevierHeliyon2405-84402022-11-01811e11618Characterization of macro and micro-minerals in cassava leaves from genotypes planted in three different agroecological locations in NigeriaEmmanuel Oladeji Alamu0Alfred Dixon1Tolu Emma Eyinla2Busie Maziya-Dixon3International Institute of Tropical Agriculture, Southern Africa, Research and Administration Hub (SARAH) Campus, PO Box 310142, Chelstone, Lusaka, 10101, Zambia; International Institute of Tropical Agriculture, PMB 5230, Ibadan, Oyo State, Nigeria; Corresponding author.International Institute of Tropical Agriculture, PMB 5230, Ibadan, Oyo State, NigeriaInternational Institute of Tropical Agriculture, PMB 5230, Ibadan, Oyo State, Nigeria; Department of Human Nutrition and Dietetics, University of Ibadan, Ibadan, Oyo State, NigeriaInternational Institute of Tropical Agriculture, PMB 5230, Ibadan, Oyo State, NigeriaDiversity in the mineral composition of cassava leaves bred in sub-Saharan Africa has not been fully investigated. This study characterized macro and micro-minerals in 400 genotypes of Cassava leaves planted in three different agroecological environments in Nigeria. Laboratory analysis of the leaves was done using an Inductively Coupled Optical Emission Spectrometer. Across all three locations sampled in this study, the iron content ranged from 43 to 660 mg/kg, zinc from 16 to 440 mg/kg, Manganese 16–61mg/kg, Copper 0.7–14 mg/kg, Aluminum 5.3–630 mg/kg. Among the macro elements, Calcium ranged from 3600 to 17600 mg/kg, Magnesium 1760–6500 mg/kg, Sodium 0.4–720 mg/kg, Potassium 3100–27000 mg/kg. When the location effect was tested, there was a significant difference among the genotypes for all elements. Cluster analysis resulted in five clusters containing 187, 147, 60, 2, and 4 genotypes, respectively. Cluster 2 contained eight varieties (01/0046, 94/0020, 93/0098, 88/112-7(3X), I00/0017, 91/00417, I00/0017, 88/112-7(3X)) that possessed the highest mineral compositions in Fe, Al, Ti, Na, K, S, Mn, and B, respectively. Genotypes 93/0681(4X), 92/0430, and 95/0460 in cluster 3 had the highest concentrations of Mg, Na, and Zn, respectively. The correlation results showed a notable positive relationship among iron with zinc, copper, aluminum, and titanium (r = 0.33, 0.39, 0.48, and 0.56, respectively), zinc with nickel, titanium, and sulphur (r = 0.52, 0.3,2 and 0.51, respectively) while calcium negatively correlated with potassium (r = ‒ 0.31), phosphorus (r = ‒0.41). This study provides evidence that genotypic diversity exists for mineral composition in cassava leaves and, therefore, can be exploited for genetic improvement by breeders seeking solutions to reduce persistent mineral deficiencies in sub-Saharan Africa.http://www.sciencedirect.com/science/article/pii/S2405844022029061Cassava leavesMineralsNigeriaIronZinc
spellingShingle Emmanuel Oladeji Alamu
Alfred Dixon
Tolu Emma Eyinla
Busie Maziya-Dixon
Characterization of macro and micro-minerals in cassava leaves from genotypes planted in three different agroecological locations in Nigeria
Heliyon
Cassava leaves
Minerals
Nigeria
Iron
Zinc
title Characterization of macro and micro-minerals in cassava leaves from genotypes planted in three different agroecological locations in Nigeria
title_full Characterization of macro and micro-minerals in cassava leaves from genotypes planted in three different agroecological locations in Nigeria
title_fullStr Characterization of macro and micro-minerals in cassava leaves from genotypes planted in three different agroecological locations in Nigeria
title_full_unstemmed Characterization of macro and micro-minerals in cassava leaves from genotypes planted in three different agroecological locations in Nigeria
title_short Characterization of macro and micro-minerals in cassava leaves from genotypes planted in three different agroecological locations in Nigeria
title_sort characterization of macro and micro minerals in cassava leaves from genotypes planted in three different agroecological locations in nigeria
topic Cassava leaves
Minerals
Nigeria
Iron
Zinc
url http://www.sciencedirect.com/science/article/pii/S2405844022029061
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AT toluemmaeyinla characterizationofmacroandmicromineralsincassavaleavesfromgenotypesplantedinthreedifferentagroecologicallocationsinnigeria
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