Genetic divergence and path analysis in wheat cultivars under heat stress

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dc.contributor.authorSilva Oliveira, Carlos Eduardo da [UNESP]
dc.contributor.authorAndrade, Agner de Reitas
dc.contributor.authorZoz, Andre [UNESP]
dc.contributor.authorSobrinho, Renato Lustosa
dc.contributor.authorZoz, Tiago
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Mato Grosso do Sul (UEMS)
dc.contributor.institutionUniv Antwerp
dc.date.accessioned2021-06-25T11:45:34Z
dc.date.available2021-06-25T11:45:34Z
dc.date.issued2020-01-01
dc.description.abstractOne of the biggest limitations for the wheat crop expansion to Brazilian tropical regions is the high temperature in the rainy season. This study aimed to select, based on genetic divergence and path analysis, cultivars that tolerate cultivation in the summer (heat stress). Nine wheat cultivars were sown, using a randomized block design with three replications, with plots consisting of 10 rows of 6 m and row spacing of 0.15 m. The highest grain yield and number of ears m(-2) were observed for the CD 150 cultivar and the largest 1,000-grain weight for CD 116. BRS 220, IPR 136, IPR 144 and BRS Pardela had the highest number of sterile spikelets. The highest number of grains per ear was observed for CD 150, CD 116, BRS Pardela, IPR 130 and IPR 85, showing direct effects on grain yield, evidenced by the path analysis. CD 116 and CD 150 were the most productive cultivars and can be considered as possible parents in wheat breeding programs. IPR 85, CD 116, CD 108 and CD 150 showed a greater tolerance to high temperatures.en
dc.description.affiliationUniv Estadual Paulista, Fac Engn, Ilha Solteira, SP, Brazil
dc.description.affiliationUniv Estadual Mato Grosso do Sul, Dept Fitotecnia, Cassilandia, MS, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias Agron, Botucatu, SP, Brazil
dc.description.affiliationUniv Antwerp, Dept Biol, Antwerp, Belgium
dc.description.affiliationUnespUniv Estadual Paulista, Fac Engn, Ilha Solteira, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias Agron, Botucatu, SP, Brazil
dc.format.extent9
dc.identifierhttp://dx.doi.org/10.1590/1983-40632020v5065493
dc.identifier.citationPesquisa Agropecuaria Tropical. Goiania Go: Univ Federal Goias, v. 50, 9 p., 2020.
dc.identifier.doi10.1590/1983-40632020v5065493
dc.identifier.fileS1983-40632020000100252.pdf
dc.identifier.issn1517-6398
dc.identifier.scieloS1983-40632020000100252
dc.identifier.urihttp://hdl.handle.net/11449/209002
dc.identifier.wosWOS:000598170800001
dc.language.isoeng
dc.publisherUniv Federal Goias
dc.relation.ispartofPesquisa Agropecuaria Tropical
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectTriticum aestivum
dc.subjectgenotypic correlations
dc.subjecthigh-temperature tolerance
dc.subjectwheat crop expansion
dc.titleGenetic divergence and path analysis in wheat cultivars under heat stressen
dc.typeArtigo
dcterms.rightsHolderUniv Federal Goias
unesp.author.orcid0000-0002-3894-9559[1]
unesp.author.orcid0000-0003-2176-6745[4]
unesp.author.orcid0000-0003-2991-5485[5]

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