Grain yield, photosynthesis and water relations in two contrasting maize landraces as affected by high temperature alone or in combination with drought

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:31:00Z
Fecha de publicación2014-01-01
ResumenOn a global basis, high temperature in conjugation with coincident drought poses the most important environmen¬tal constraint to plant survival and to crop productivity. Two experiments were conducted to investigate the effect of drought, heat, and the combined stresses on stress-tolerant C-3014 and stress-susceptible C-3015 maize landraces. The objective of the first experiment was to compare the effects of drought, heat, or the combined stresses on photosynthesis and water relations on two contrasting maize landraces under controlled conditions; the objective of the second experiment was to determine the effects on drought and heat stress on agronomic traits and grain yield in field. Results indicated that dry matter production, RWC, and Ψ was significantly reduced by the combination of high temperature and drought by 66, 38, and 105% respectively, which was greater and more severe than the reduction under drought or heat alone. In tolerant genotype the Ψ was reduced in 84%, how¬ever in the susceptible genotype the reduction was in 126%. The combined stresses also significantly decreased the A and gs in C-3015 more rapidly than C-3014. Under field, the combined stresses caused a severe decline in all agronomic traits, but the response was higher in the susceptible than tolerant genotype. The field evaluation confirmed the observation in controlled conditions, that C-3014 is more tolerant to high temperature and water stress combined, than C-3015.es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/2731
Idiomaenes_ES
EditorialExperimental Institute for Cereal Growinges_ES
RelaciónMaydicaes_ES
URL relacionadohttps://journals-crea.4science.it/index.php/maydica/article/view/977es_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuenteMaydica
Palabra claveAgronomyes_ES
Palabra claveBiologyes_ES
Palabra clavePhotosynthesises_ES
Palabra claveDrought tolerancees_ES
Palabra claveProductivityes_ES
Palabra claveDrought stresses_ES
Palabra claveYield (engineering)es_ES
Palabra claveGrain yieldes_ES
Palabra claveHeat stresses_ES
Palabra claveCropes_ES
Palabra claveWater stresses_ES
Palabra claveDrought resistancees_ES
ClasificaciónPlant responses to elevated CO2es_ES
TítuloGrain yield, photosynthesis and water relations in two contrasting maize landraces as affected by high temperature alone or in combination with droughtes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorCastro-Nava, Sergio
AutorRamos-Ortíz, Víctor H.
AutorReyes-Méndez, César Augusto
AutorHuerta, Alfredo J.
AutorCastro-Nava, Sergioes_ES
AutorRamos-Ortíz, Víctor H.es_ES
AutorReyes-Méndez, César Augustoes_ES
AutorHuerta, Alfredo J.es_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número2es_ES
Rango de páginas104-111es_ES
URL relacionadahttps://journals-crea.4science.it/index.php/maydica/article/view/977
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen59es_ES

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