Yield improvement in maize for tolerance to low soil nitrogen

• DOI: 10.1111/pbr.12568
• Publication Date: 2018-03-09T04:46:38Z
• Authors: Sam Oyewole Ajala; Amudalat Bolanle ...; Muyideen Oluseyi ...; Anthony Oluwatoyo...
• Keywords: Genetic Variability

Abstract Low soil nitrogen limits maize ( Zea mays L.) production in the West and Central African subregion. Levels of residual genetic variability were determined two low‐ N populations using selfed progeny evaluations, results obtained indicate large genotypic phenotypic variances for grain yield under both high‐ environments effective selection, while heritability estimates generally low. Ear aspect stay green most important traits contributing to populations. Selection reduced days flowering, ASI ear aspect, but increased plant height yield. Yield gains more than 25% occurred low high with significant change 42% occurring one population .