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Tize I, Fotso AK, Nukenine EN, Masso C, Ngome FA, Suh C, Lendzemo VW, Nchoutnji I, Manga G, Parkes E, Kulakow P, Kouebou C, Fiaboe KKM, Hanna R. New cassava germplasm for food and nutritional security in Central Africa. Sci Rep 2021; 11:7394. [PMID: 33795808 PMCID: PMC8016988 DOI: 10.1038/s41598-021-86958-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 03/22/2021] [Indexed: 11/08/2022] Open
Abstract
Cassava is a key food security crop in Central Africa, but its production depends largely on the use of local farmers' varieties characterized by inherently low yield which is compounded by generally high susceptibility to various growth and yield-limiting pests and diseases. Improved cassava genotypes have demonstrated the potential to substantially improve cassava's contribution to food security and the development of the cassava industry and the improvement of nutrition status elsewhere in Western Africa. Eleven improved cassava genotypes were compared with a local landrace (LMR) used as a check under field conditions over two years in eight locations, grouped in four agro-ecologies in Cameroon. Pest and disease abundance/incidence and damage severity were evaluated. At harvest, root yield and carotenoid content were measured. Best linear unbiased predictors showed the lowest breeding value for LMR with the cassava mosaic virus disease (+ 66.40 ± 2.42) compared with 1.00 ± 0.02% for the most susceptible improved genotype. Two genotypes (I010040-27 and I011797) stood out for having higher predicted fresh root yield means which were at least 16 times greater compared with LMR. Predicted total carotenoid content was the highest (+ 5.04 ± 0.17) for improved genotype I070593 compared with LMR which showed the lowest (- 3.90 ± 0.06%) and could contribute to the alleviation of vitamin A deficiency from cassava-based food systems. Diffusion of high-yielding and nutritious genotypes could alleviate food and nutritional security in Central Africa.
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Affiliation(s)
- Isaac Tize
- International Institute of Tropical Agriculture, BP 2008, Messa, Yaoundé, Cameroon
- Department of Biological Sciences, University of Ngaoundere, BP 454, Ngaoundere, Cameroon
| | - Apollin Kuate Fotso
- International Institute of Tropical Agriculture, BP 2008, Messa, Yaoundé, Cameroon.
| | - Elias Nchiwan Nukenine
- Department of Biological Sciences, University of Ngaoundere, BP 454, Ngaoundere, Cameroon
| | - Cargele Masso
- International Institute of Tropical Agriculture, BP 2008, Messa, Yaoundé, Cameroon
| | | | - Christopher Suh
- Institute of Agricultural Research for Development, BP 2067, Yaoundé, Cameroon
| | | | - Ibrahim Nchoutnji
- Institute of Agricultural Research for Development, BP 2067, Yaoundé, Cameroon
| | - Gabriel Manga
- Institute of Agricultural Research for Development, BP 2067, Yaoundé, Cameroon
| | - Elisabeth Parkes
- International Institute of Tropical Agriculture, PMB 320 Oyo Road, Ibadan, Nigeria
| | - Peter Kulakow
- International Institute of Tropical Agriculture, PMB 320 Oyo Road, Ibadan, Nigeria
| | - Christiant Kouebou
- Agricultural Investment and Market Development Project, Yaoundé, Cameroon
| | - Komi K M Fiaboe
- International Institute of Tropical Agriculture, BP 2008, Messa, Yaoundé, Cameroon
| | - Rachid Hanna
- International Institute of Tropical Agriculture, BP 2008, Messa, Yaoundé, Cameroon
- Congo Basin Institute, Institute of Environment and Sustainability, University of California, Box 951496, Los Angeles, USA
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