Biomass production and grain yield of three sorghum lines differing in drought resistance

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:33:24Z
Fecha de publicación2012-01-01
ResumenThe aim of this study was to determine the efficiency of drought classification criteria that we previously reported for our grain sorghum genotypes. Two tolerant genotypes of grain sorghum {[}Sorghum bicolor (L.) Moench] (UAT-124 and UAT-152) and one susceptible (UAT-30) were subjected to drought under greenhouse conditions at either panicle initiation, flag leaf, or flowering. Results showed that the effects of drought depended on when drought stress occurred during development. Biomass of the three sorghum genotypes was significantly reduced at the flag leaf stage (48\%) by drought stress, but the greatest reduction occurred in the susceptible genotype UAT-30 (71\%). Results showed that biomass accumulation for UAT-124 and UAT-30 was strongly in accordance with our previous drought classification, but this was not true for UAT-152. Drought stress reduced grain yield significantly in all genotypes, when it was applied at flag leaf stage (24\%) and at flowering (28\%), but not at panicle initiation. Resistant and susceptible genotypes had the same response in terms of grain yield when stress was applied at any. of the three phenological stages. The results indicate that genotype responses to drought treatment were inconsistent with their initial classification. The identification of tolerant and susceptible sorghum genotypes could be better accomplished by applying drought stress at the more susceptible stage of development, flag leaf, and selection must be based on biomass, grain yield and leaf area.es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/5223
Idiomaenes_ES
EditorialTECH SCIENCE PRESSes_ES
RelaciónPhyton-International Journal of Experimental Botanyes_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuentePhyton-International Journal of Experimental Botany
Palabra claveSorghum bicolor L. Moenches_ES
Palabra claveWater stresses_ES
Palabra claveDroughtes_ES
Palabra clavePhenologyes_ES
Palabra claveBiomass accumulationes_ES
Palabra claveGrain yieldes_ES
TítuloBiomass production and grain yield of three sorghum lines differing in drought resistancees_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorCastro-Nava, S.
AutorOrtiz-Cereceres, J.
AutorMendoza-Castillo, M. del C.
AutorHuerta, A. J.
AutorCastro-Nava, S.es_ES
AutorOrtiz-Cereceres, J.es_ES
AutorMendoza-Castillo, M. del C.es_ES
AutorHuerta, A. J.es_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Rango de páginas149-156es_ES
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen81es_ES

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