Genetic divergence and path analysis in wheat cultivars under heat stress

Vista sencilla de ítem
dc.creatorCarlos Eduardo da Silva Oliveira
dc.creatorAgner de Freitas Andrade
dc.creatorAndré Zoz
dc.creatorRenato Lustosa Sobrinho
dc.creatorTiago Zoz
dc.date2020
dc.date.accessioned2026-07-07T04:32:16Z
dc.descriptionOne 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.
dc.formatapplication/pdf
dc.identifier1517-6398
dc.identifierhttps://www.redalyc.org/articulo.oa?id=253068033051
dc.identifierhttps://www.redalyc.org/journal/2530/253068033051/
dc.identifierhttps://www.redalyc.org/journal/2530/253068033051/html/
dc.identifierhttps://www.redalyc.org/journal/2530/253068033051/253068033051.epub
dc.identifierhttps://www.redalyc.org/journal/2530/253068033051/movil
dc.identifierhttps://doi.org/10.1590/1983-40632020v5065493
dc.identifier.urihttp://hdl.handle.net/123456789/464481
dc.languageen
dc.publisherUniversidade Federal de Goiás
dc.relationhttp://www.redalyc.org/revista.oa?id=2530
dc.rightsPesquisa Agropecuária Tropical
dc.sourcePesquisa Agropecuária Tropical (Brasil) Vol.50
dc.subjectAgrociencias
dc.titleGenetic divergence and path analysis in wheat cultivars under heat stress
dc.typeartículo científico

Archivos

Colecciones

Pesquisa Agropecuária Tropical - Universidade Federal de Goiás