High night temperatures during grain number determination reduce wheat and barley grain yield a field study

Warm nights are a widespread predicted feature of climate change. This study investigated the impact of high night temperatures during the critical period for grain yield determination in wheat and barley crops under field conditions, assessing the effects on development, growth and partitioning cro...

Descripción completa

Guardado en:
Detalles Bibliográficos
Otros Autores: García, Guillermo Ariel, Dreccer, María Fernanda, Miralles, Daniel Julio, Serrago, Román Augusto
Formato: Artículo
Lenguaje:Inglés
Materias:
CLIMATE CHANGE
CROP DEVELOPMENT
CROP GROWTH
GRAIN NUMBER
HORDEUM VULGARE L.
MINIMUM TEMPERATURE
TRITICUM AESTIVUM L.
Acceso en línea:http://ri.agro.ar/files/intranet/articulo/2015garcia.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
LEADER 02890cab a22003977a 4500
001 AR-BaUFA000926
003 AR-BaUFA
005 20221102111925.0
008 181208t2015 |||||o|||||00||||eng d
999 |c 47282  |d 47282 
999 |d 47282 
999 |d 47282 
999 |d 47282 
022 |a 1354-1013 
024 |a 10.1111/gcb.13009 
040 |a AR-BaUFA  |c AR-BaUFA 
245 1 0 |a High night temperatures during grain number determination reduce wheat and barley grain yield   |b a field study 
520 |a Warm nights are a widespread predicted feature of climate change. This study investigated the impact of high night temperatures during the critical period for grain yield determination in wheat and barley crops under field conditions, assessing the effects on development, growth and partitioning crop - level processes driving grain number per unit area [GN]. Experiments combined: [i] two contrasting radiation and temperature environments: late sowing in 2011 and early sowing in 2013, [ii] two well - adapted crops with similar phenology: bread wheat and two - row malting barley and [iii] two temperature regimes: ambient and high night temperatures. The night temperature increase [ca. 3.9 °C in both crops and growing seasons] was achieved using purpose - built heating chambers placed on the crop at 19:000 hours and removed at 7:00 hours every day from the third detectable stem node to 10 days post - flowering. Across growing seasons and crops, the average minimum temperature during the critical period ranged from 11.2 to 17.2 °C. Wheat and barley grain yield were similarly reduced under warm nights [ca. 7 per cent °C -1], due to GN reductions [ca. 6 per cent °C -1] linked to a lower number of spikes per m2. An accelerated development under high night temperatures led to a shorter critical period duration, reducing solar radiation capture with negative consequences for biomass production, GN and therefore, grain yield. The information generated could be used as a starting point to design management and-or breeding strategies to improve crop adaptation facing climate change. 
650 |2 Agrovoc  |9 26 
653 0 |a CLIMATE CHANGE 
653 0 |a CROP DEVELOPMENT 
653 0 |a CROP GROWTH 
653 0 |a GRAIN NUMBER 
653 0 |a HORDEUM VULGARE L. 
653 0 |a MINIMUM TEMPERATURE 
653 0 |a TRITICUM AESTIVUM L. 
700 1 |a García, Guillermo Ariel  |9 29116 
700 1 |a Dreccer, María Fernanda  |9 23449 
700 1 |a Miralles, Daniel Julio  |9 6438 
700 1 |a Serrago, Román Augusto  |9 12536 
773 |t Global Change Biology  |g Vol.21, no.11 (2015), p.4153-4164, grafs., tbls.  |w SECS001382 
856 |u http://ri.agro.ar/files/intranet/articulo/2015garcia.pdf  |q application/pdf  |f 2015garcia  |x MIGRADOS2018 
856 |u https://www.wiley.com/   |x MIGRADOS2018  |z LINK AL EDITOR 
942 0 0 |c ARTICULO 
942 0 0 |c ENLINEA 
976 |a AAG 

Ejemplares similares