Quantitative Assessment of Trace and Macro Element Compositions of Cassava ( Manihot esculenta ) Storage Roots Enriched with ?-Carotene as Influenced by Genotypes and Growing Locations

Emmanuel Oladeji Alamu, Busie Maziya-Dixon and Alfred Gilbert Dixon
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Emmanuel Oladeji Alamu: International Institute of Tropical Agriculture, Food and Nutrition Sciences Laboratory, Southern Africa, Research and Administration Hub (SARAH) Campus P.O. Box 310142, Chelstone, Lusaka 10101, Zambia
Busie Maziya-Dixon: International Institute of Tropical Agriculture, Food and Nutrition Sciences Laboratory, PMB 5230 Ibadan, Oyo State, Nigeria
Alfred Gilbert Dixon: International Institute of Tropical Agriculture, Food and Nutrition Sciences Laboratory, PMB 5230 Ibadan, Oyo State, Nigeria

Agriculture, 2020, vol. 10, issue 12, 1-14

Abstract: Cassava’s important mineral contents depends on some factors, including genetic and growing locational factors. The study aimed to evaluate the influence of genotype and growing locations on the mineral concentrations in yellow-fleshed cassava root genotypes. Twenty-five pipeline yellow-fleshed cassava genotypes and three white-fleshed varieties (check samples) were planted at five different experimental fields for two seasons, each representing the major agroecological zones in Nigeria. Standard laboratory protocols were employed in the sampling to ensure zero contamination, and the trace and macro elements were determined using the inductively coupled plasma optical emission spectroscopic method (ICPOES). The trace and macro elements identified in all the genotypes and varieties investigated were Fe, Mn, B, Cu, Mo, Co, Ni, Zn, and Al; Ca, Mg, Na, K. P, and S respectively. Genotype and growing location had a highly significant ( p < 0.05) effect on all the trace elements except Ti and Cr. However, there was no interactive effect between genotype and growing location on all the trace elements except for Pb and Zn. Among the explanatory variables, the variable growing location was the most influential on macro and trace elements. Conclusively, genotypes 01/1442 and 01/1273 have outstanding trace and macro element concentrations.

Keywords: yellow-fleshed cassava; macronutrient; micronutrient; genotypic variations; growing locations (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2020
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