Next Article in Journal
Effects of Dosage and Spraying Volume on Cotton Defoliants Efficacy: A Case Study Based on Application of Unmanned Aerial Vehicles
Next Article in Special Issue
Agronomic Comparisons of Conventional and Organic Maize during the Transition to an Organic Cropping System
Previous Article in Journal
Physiological and Agronomic Strategies to Increase Mungbean Yield in Climatically Variable Environments of Northern Australia
Previous Article in Special Issue
Genotype-by-Environment Interaction and Yield Stability of Maize Single Cross Hybrids Developed from Tropical Inbred Lines
Article Menu
Issue 6 (June) cover image

Export Article

Open AccessReview
Agronomy 2018, 8(6), 84;

Breeding Maize for Tolerance to Acidic Soils: A Review

Department of Agronomy, University of Fort Hare, P. Bag X1314, Alice 5700, South Africa
Institute of Agricultural Research for Development (IRAD), University of Yaounde I, P.O. Box 2123, Messa, Yaounde, Cameroon
College of Agriculture and Consumer Sciences, University of Ghana, PMB LG 30, Legon, Accra, Ghana
Author to whom correspondence should be addressed.
Received: 31 March 2018 / Revised: 21 May 2018 / Accepted: 23 May 2018 / Published: 29 May 2018
(This article belongs to the Special Issue Environmental and Management Factor Contributions to Maize Yield)
Full-Text   |   PDF [914 KB, uploaded 29 May 2018]   |  


Acidic soils hamper maize (Zea mays L.) production, causing yield losses of up to 69%. Low pH acidic soils can lead to aluminum (Al), manganese (Mn), or iron (Fe) toxicities. Genetic variability for tolerance to low soil pH exists among maize genotypes, which can be exploited in developing high-yielding acid-tolerant maize genotypes. In this paper, we review some of the most recent applications of conventional and molecular breeding approaches for improving maize yield under acidic soils. The gaps in breeding maize for tolerance to low soil pH are highlighted and an emphasis is placed on promoting the adoption of the numerous existing acid soil-tolerant genotypes. While progress has been made in breeding for tolerance to Al toxicity, little has been done on Mn and Fe toxicities. More research inputs are therefore required in: (1) developing screening methods for tolerance to manganese and iron toxicities; (2) elucidating the mechanisms of maize tolerance to Mn and Fe toxicities; and, (3) identifying the quantitative trait loci (QTL) responsible for Mn and Fe tolerance in maize cultivars. There is also a need to raise farmers’ and other stakeholders’ awareness of the problem of Al, Mn, and Fe soil toxicities to improve the adoption rate of the available acid-tolerant maize genotypes. Maize breeders should work more closely with farmers at the early stages of the release process of a new variety to facilitate its adoption level. Researchers are encouraged to strengthen their collaboration and exchange low soil pH-tolerant maize germplasm. View Full-Text
Keywords: maize; low soil pH; toxicity; breeding; tolerance maize; low soil pH; toxicity; breeding; tolerance

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Ngoune Tandzi, L.; Mutengwa, C.S.; Ngonkeu, E.L.M.; Gracen, V. Breeding Maize for Tolerance to Acidic Soils: A Review. Agronomy 2018, 8, 84.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Agronomy EISSN 2073-4395 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top