Evaluating nitrogen use efficiency and grain traits in hulless and hulled barley genotypes using Exhaustive CHAID and GT biplot

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dc.authorid0000-0001-7828-5163
dc.authorid0000-0002-3080-0880
dc.authorid0000-0003-2152-4535
dc.contributor.authorHocaoglu, Onur
dc.contributor.authorAkcura, Mevlut
dc.contributor.authorCiftci, Beyza
dc.date.accessioned2026-02-03T12:02:26Z
dc.date.available2026-02-03T12:02:26Z
dc.date.issued2026
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractHulless barley has attracted considerable interest due to its nutritional qualities and relevance in the food industry. However, information on the nitrogen use efficiency (NUE) of hulless barley remains scarce. In order to identify optimal nitrogen input strategies for yield and quality of barley, this study evaluated NUE, grain yield (GY), grain nitrogen rate (GNR), and related yield components in 2 hulless and 8 hulled barley genotypes across four nitrogen levels (0, 90, 180, and 270 kg ha-1). Statistical analysis included analysis of variance, Exhaustive CHAID (Chi-square automatic interaction detection), and genotype-by-trait (GT) biplot. Field trials were conducted according to the split block design with three replications in 2020 and 2021 growing seasons. Hulless genotypes Ozen and Yalin underperformed in most traits except GNR. NUE, defined as grain yield gain per unit N applied, did not consistently reflect a higher GY potential since low GY in control plots could inflate NUE. Both GT Biplot and Exhaustive CHAID separated barley genotypes: Larende and Egebeyi genotypes yielded higher GY and NUE under higher N doses when other genotypes leaned toward higher GNR. Selecting barley genotypes with inherently high GY potential would yield optimal results in all N doses in terms of NUE, grain yield and quality. GT Biplot and Exhaustive CHAID analyses proved effective for identifying barley genotypes with higher GY potential and optimizing N input in agricultural systems.
dc.description.sponsorshipCanakkale Onsekiz Mart University the Scientific Research Coordination Unit [FBA-2020-3442]
dc.description.sponsorshipThis research is funded by Canakkale Onsekiz Mart University the Scientific Research Coordination Unit under Project number: FBA-2020-3442.
dc.identifier.doi10.1080/01904167.2025.2564331
dc.identifier.endpage767
dc.identifier.issn0190-4167
dc.identifier.issn1532-4087
dc.identifier.issue4
dc.identifier.scopus2-s2.0-105017851143
dc.identifier.scopusqualityQ2
dc.identifier.startpage753
dc.identifier.urihttps://doi.org/10.1080/01904167.2025.2564331
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34760
dc.identifier.volume49
dc.identifier.wosWOS:001581717800001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Inc
dc.relation.ispartofJournal of Plant Nutrition
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260130
dc.subjectData mining
dc.subjectgrain quality
dc.subjectgrain yield
dc.subjectnitrogen optimization
dc.subjectNUE
dc.titleEvaluating nitrogen use efficiency and grain traits in hulless and hulled barley genotypes using Exhaustive CHAID and GT biplot
dc.typeArticle

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