| dc.contributor.author | Badu-Apraku, B. |
| dc.contributor.author | Fakorede, M. |
| dc.contributor.author | Abubakar, M. |
| dc.date.accessioned | 2022-06-10T08:26:25Z |
| dc.date.available | 2022-06-10T08:26:25Z |
| dc.date.issued | 2022 |
| dc.identifier.citation | Badu-Apraku, B., Fakorede, M. & Abubakar, M. (2022). Accelerated genetic gains in early-maturing maize hybrids following three periods of genetic enhancement for grain yield under low and high soil-nitrogen environments. Plants, 11(9), 1-16. |
| dc.identifier.issn | 2223-7747 |
| dc.identifier.uri | https://hdl.handle.net/20.500.12478/7503 |
| dc.description.abstract | Maize (Zea mays L.) is an important staple, as well as cash crop, in sub-Saharan Africa (SSA). However, its production is severely constrained by low soil nitrogen (low N). Fifty-four early-maturing hybrids developed during three breeding periods, (2008–2010, 2011–2013 and 2014–2016) were evaluated under low (30 kg ha−1) and high (120 kg ha−1) soil nitrogen (N) in Ile-Ife and Mokwa, Nigeria, from 2017 to 2019. The study was designed to (i) determine the genetic gains in grain yield of the early-maturing maize hybrids developed during the three breeding periods, (ii) determine the relationship between grain yield and other agronomic traits and (iii) identify the highest-yielding and most stable hybrids under low- and high-N environments. The 54 hybrids were evaluated using a 6 × 9 lattice design with three replications. Mean squares for hybrids were significant for measured traits under low- and high-N environments, except the mean squares for stalk lodging and EPP under low N. Annual genetic gains in grain yield were 75 kg ha−1 year−1 (2.91%) and 55 kg ha−1 year−1 (1.33%) under low- and high-N environments, respectively, indicating that substantial gains were achieved in the genetic enhancement of the early-maturing hybrids. The hybrids TZdEI 314 × TZdEI 105, TZdEI 378 × TZdEI 173, ENT 12 × TZEI 48 and TZdEI 352 × TZdEI 315 were identified as the highest-yielding and most stable across test environments and should be tested extensively on farms and commercialized in SSA. |
| dc.description.sponsorship | Bill & Melinda Gates Foundation |
| dc.format.extent | 1-16 |
| dc.language.iso | en |
| dc.subject | Breeding |
| dc.subject | Hybrids |
| dc.subject | Genetic Gain |
| dc.subject | Maize |
| dc.subject | Varieties |
| dc.subject | Sub-Saharan Africa |
| dc.title | Accelerated genetic gains in early-maturing maize hybrids following three periods of genetic enhancement for grain yield under low and high soil-nitrogen environments |
| dc.type | Journal Article |
| cg.contributor.crp | Maize |
| cg.contributor.affiliation | International Institute of Tropical Agriculture |
| cg.contributor.affiliation | Obafemi Awolowo University |
| cg.contributor.affiliation | International Livestock Research Institute |
| cg.coverage.region | Africa |
| cg.coverage.region | West Africa |
| cg.coverage.country | Nigeria |
| cg.coverage.hub | Headquarters and Western Africa Hub |
| cg.researchtheme | Biotech and Plant Breeding |
| cg.identifier.bibtexciteid | BADUAPRAKU:2022 |
| cg.isijournal | ISI Journal |
| cg.authorship.types | CGIAR and developing country institute |
| cg.iitasubject | Agronomy |
| cg.iitasubject | Food Security |
| cg.iitasubject | Maize |
| cg.iitasubject | Plant Breeding |
| cg.iitasubject | Plant Production |
| cg.journal | Plants |
| cg.notes | Open Access Article; Published online: 29 Apr 2022 |
| cg.accessibilitystatus | Open Access |
| cg.reviewstatus | Peer Review |
| cg.usagerightslicense | Creative Commons Attribution 4.0 (CC BY 0.0) |
| cg.targetaudience | Scientists |
| cg.identifier.doi | https://dx.doi.org/10.3390/plants11091208 |
| cg.iitaauthor.identifier | BAFFOUR BADU-APRAKU: 0000-0003-0113-5487 |
| cg.futureupdate.required | No |
| cg.identifier.issue | 9 |
| cg.identifier.volume | 11 |
