{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,26]],"date-time":"2026-10-26T13:42:28Z","timestamp":1793022148992,"version":"4.5.0"},"reference-count":44,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T00:00:00Z","timestamp":1792022400000},"content-version":"vor","delay-in-days":14,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:00:00Z","timestamp":1790812800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100004535","name":"Ethiopian Institute of Agricultural Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004535","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Plant Enviro Interactions"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Northern leaf blight (NLB), caused by\n                    <jats:italic>Exserohilum turcicum<\/jats:italic>\n                    , is a major constraint to maize production in Ethiopia's mid\u2010altitude and transitional\u2010highland agro\u2010ecologies. This study evaluated 30 maize genotypes (24 commercial hybrids released 1988\u20132020 and six female parent lines) at two NLB hotspot locations (Arsi Negele, 1960\u2009m a.s.l.; Wondo Genet, 1720\u2009m a.s.l.)\u00a0during the 2022 and 2023 main cropping seasons. Artificial inoculation using ground\u2010infected leaf tissue combined with BH543 spreader rows ensured uniform disease pressure. A randomized complete block design with three replications was used at each location. Disease parameters (NLB severity, AUDPC, apparent infection rate, lesion size) and grain yield were assessed. Combined analysis of variance revealed significant genotype\u2009\u00d7\u2009year\u2009\u00d7\u2009location interactions (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.001) for all traits, justifying location\u2010specific analyses. Final NLB severity (NLB6) ranged from 25.1% (F\u2010BH661) to 53.5% (F\u2010BH543). Obsolete varieties BH140 (released 1988) and BH540 (released 1995) showed high susceptibility (48.7%\u201348.8% NLB6), statistically similar to the susceptible check BH543 (51.3%), suggesting possible erosion of resistance effectiveness over 17\u201327\u2009years, though pathogen race characterization is required for confirmation. Grain yield ranged from 3.2 to 7.9\u2009t\u2009ha\n                    <jats:sup>\u22121<\/jats:sup>\n                    , with BH549 achieving the highest yield (6.80\u2009t\u2009ha\n                    <jats:sup>\u22121<\/jats:sup>\n                    ). Female\u2010parent relative heterosis analysis revealed contrasting male parent effects: BH661 maintained resistance near the female\u2010parent level (+6.7% heterosis for NLB6, indicating a marginal increase in susceptibility), while BH546 exhibited substantially increased susceptibility (+53.4%). NLB6 correlated negatively with yield (\n                    <jats:italic>r<\/jats:italic>\n                    \u2009=\u2009\u22120.40,\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.01) and positively with AUDPC (\n                    <jats:italic>r<\/jats:italic>\n                    \u2009=\u20090.78) and infection rate (\n                    <jats:italic>r<\/jats:italic>\n                    \u2009=\u20090.90). F\u2010BH661 was identified as the most resistant genotype, contributing differentially to BH661 and BH546 resistance. These findings provide critical insights for breeding durable NLB resistance and developing location\u2010specific variety recommendations for Ethiopian maize production systems.\n                  <\/jats:p>","DOI":"10.1002\/pei3.70219","type":"journal-article","created":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T07:45:58Z","timestamp":1792050358000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Evaluation of Maize Genotypes for Northern Leaf Blight Resistance and Yield in Ethiopian Hotspots"],"prefix":"10.1002","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2519-3817","authenticated-orcid":false,"given":"Mesele","family":"Haile","sequence":"first","affiliation":[{"name":"Ethiopian Institute of Agricultural Research  Addis Ababa Ethiopia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1441-6088","authenticated-orcid":false,"given":"Zelalem","family":"Bekeko","sequence":"additional","affiliation":[{"name":"College of Agriculture and Environmental Sciences Haramaya University  Dire Dawa Ethiopia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9976-9343","authenticated-orcid":false,"given":"Temesgen","family":"Deressa","sequence":"additional","affiliation":[{"name":"Ethiopian Institute of Agricultural Research  Addis Ababa Ethiopia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-3325-1875","authenticated-orcid":false,"given":"Gemechisa","family":"Getachew","sequence":"additional","affiliation":[{"name":"Ethiopian Institute of Agricultural Research  Addis Ababa Ethiopia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-8076-2811","authenticated-orcid":false,"given":"Gemechu","family":"Alemu","sequence":"additional","affiliation":[{"name":"Ethiopian Institute of Agricultural Research  Addis Ababa Ethiopia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,15]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12571\u2010015\u20100488\u2010z"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.2135\/cropsci2000.4017"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10658\u2010005\u20103628\u2010z"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12870\u2010023\u201004385\u20107"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.18637\/jss.v067.i01"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cropro.2019.104982"},{"issue":"1","key":"e_1_2_10_8_1","first-page":"44","article-title":"Identification of New Sources of Resistance to Turcicum Leaf Blight and Maydis Leaf Blight in Maize (\n                     Zea mays\n                   L.)","volume":"46","author":"Chandrashekara C.","year":"2014","journal-title":"Sabrao Journal of Breeding and Genetics"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gfs.2021.100589"},{"key":"e_1_2_10_10_1","volume-title":"Maize Diseases: A Guide for Field Identification","author":"CIMMYT","year":"1994"},{"key":"e_1_2_10_11_1","volume-title":"Statistical Power Analysis for the Behavioral Sciences","author":"Cohen J.","year":"1988"},{"key":"e_1_2_10_12_1","first-page":"512","article-title":"The Federal Democratic Republic of Ethiopia Central Statistical Agency Report on Farm Management Practices","volume":"3","author":"CSA","year":"2021","journal-title":"Statistical Bulletin"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1155\/2024\/8801999"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.3389\/fpls.2016.01916"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12571\u2010022\u201001288\u20107"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.5897\/ajar2018.13285"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.5897\/jpbcs2020.0928"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.1155\/2026\/1729008"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10343\u2010026\u201001394\u2010y"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/jph.70380"},{"key":"e_1_2_10_21_1","volume-title":"Quantitative Genetics in Maize Breeding","author":"Hallauer A. 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