Catálogo CEIBA de la Biblioteca Central de FAUBA


Vista normal Vista MARC Vista ISBD

Plant growth rate after, and not during, waterlogging better correlates to yield responses in wheat and barley

Colaborador(es): Ciancio, Nicolás. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. CONICET. Buenos Aires, Argentina | Miralles, Daniel Julio. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. CONICET. Buenos Aires, Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina | Striker, Gustavo Gabriel. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. CONICET. Buenos Aires, Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina | Abeledo, Leonor Gabriela. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. CONICET. Buenos Aires, Argentina.
ISSN: 0931-2250 (impreso); 1439-037X (en línea).Tipo de material: Artículos y capítulos. Recurso electrónico.Tema(s): | ABIOTIC STRESS | ANOXIA | FLOODING | GENOTYPIC VARIATION | HORDEUM SSP | TRITICUM SSP | Recursos en línea: Haga clic para acceso en línea | LINK AL EDITOR En: Journal of agronomy and crop science Vol.207, no.2 (2021) p.304-316, grafs., tbls.Resumen: Waterlogging is a stress that affects wheat (Triticum aestivum L.) and barley (Hordeum vulgare L. ssp. distichum) yield. This work aimed at analysing the impact of a waterlogging event during pre-anthesis (critical period) on yield, its numerical components and their relationships with plant growth rate in wheat and barley. Two pot experiments were carried out under contrasting environmental conditions (early and late sowing date), in which six wheat and six barley cultivars were exposed to control and waterlogging conditions imposed c. 18 days prior to anthesis. Measurements included total above-ground biomass at the beginning and at the end of the waterlogging treatment and at maturity, when grain yield and its numerical components were also measured. Wheat showed higher yield losses (−76%) due to waterlogging than barley (−49%). Grain yield was explained by both numerical components (the number of grains per plant and grain weight), which better correlated with the relative growth rate of plants during the post-stress recovery than during the waterlogging period. Plant growth during the recovery period should be targeted as a key factor to estimate yield losses from waterlogging in these cereals.
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
    valoración media: 0.0 (0 votos)

Waterlogging is a stress that affects wheat (Triticum aestivum L.) and barley (Hordeum vulgare L. ssp. distichum) yield. This work aimed at analysing the impact of a waterlogging event during pre-anthesis (critical period) on yield, its numerical components and their relationships with plant growth rate in wheat and barley. Two pot experiments were carried out under contrasting environmental conditions (early and late sowing date), in which six wheat and six barley cultivars were exposed to control and waterlogging conditions imposed c. 18 days prior to anthesis. Measurements included total above-ground biomass at the beginning and at the end of the waterlogging treatment and at maturity, when grain yield and its numerical components were also measured. Wheat showed higher yield losses (−76%) due to waterlogging than barley (−49%). Grain yield was explained by both numerical components (the number of grains per plant and grain weight), which better correlated with the relative growth rate of plants during the post-stress recovery than during the waterlogging period.
Plant growth during the recovery period should be targeted as a key factor to estimate yield losses from waterlogging in these cereals.

No hay comentarios para este ítem.

Ingresar a su cuenta para colocar un comentario.

Av. San Martín 4453 - 1417 – CABA – Argentina.
Sala de lectura: bibliote@agro.uba.ar (54 11) 5287-0013
Referencia: referen@agro.uba.ar
Hemeroteca: hemerote@agro.uba.ar