A Fangmeier

A Makino

A Pswarayi

AC Newton

ADB Leakey

AK Brantestam

AS Jump

ATW Kraakman

B Barnabas

DB Lobell

DR Taub

E Nevo

Fikadu Reta Alemayehu

FN Tubiello

G Frenck

Georg Frenck

IPCC

JA Scursoni

JL Araus

JL Hatfield

JM Warren

JS Amthor

JT Anderson

K Hakala

KW Jaggard

Leon van der Linden

LH Ziska

LM Jablonski

M Elke

MM Johannessen

O Savolainen

P Martín-Olmedo

PVV Prasad

Q Luo

R Manderscheid

Rikke Bagger Jørgensen

RP Ellis

S Ceccarelli

S Chauhan

SB Altenbach

SK Clausen

SP Long

Teis Nørgaard Mikkelsen

V Smil

Crossref

Genetic Resources and Crop Evolution

Can barley (Hordeum vulgare L. s.l.) adapt to fast climate changes? A controlled selection experiment

The projected future climate will affect the global agricultural production negatively, however, to keep abreast of the expected increase in global population, the agricultural production must increase. Therefore, to safeguard the future crop yield and quality, the adaptive potential of crops to environmental change needs to be explored in order to select the most productive genotypes. Presently, it is unknown whether cereal crops like spring barley can adapt to climate stressors over relatively few generations. To evaluate if strong selection pressures could change the performance of barley to environmental stress, we conducted a selection experiment over five plant generations (G0–G4) in three scenarios, where atmospheric [CO2] and temperature were increased as single factors and in combination. The treatments represented the expected environmental characteristics in Northern Europe around year 2075 [700 ppm CO2, 22/17 C (day/night)] as well as a control mimicking present day conditions (390 ppm CO2, 19/12 C). Two different barley accessions, a modern cultivar and an old landrace, were evaluated in terms of yield and biomass production. In all treatments representing future environmental scenarios, the G4-generation of selected plants did not improve its reproductive output compared to the G0-generation, as G4 produced less seeds and had a lower yield than unselected plants. These results indicate that barley might not respond positively to rapid and strong selection by elevated [CO2] and temperature, contrary to previous results from oilseed rape. The two barley accessions analyzed presented almost the same response pattern in a given treatment, though themodern cultivar had the highest yield in the climate scenarios, while the landrace was superior in yieldunder present day climate conditions

Can barley (Hordeum vulgare L. s.l.) adapt to fast climate changes? A controlled selection experiment

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