Significant decrease in yield under future climate conditions: Stability and production of 138 spring barley accessions

被引：33

作者：

Ingvordsen, Cathrine Heinz ^{[1
]}

Backes, Gunter ^{[2
]}

Lyngkjaer, Michael Foged ^{[3
]}

Peltonen-Sainio, Pirjo ^{[4
]}

Jensen, Jens Due ^{[5
]}

Jalli, Marja ^{[4
]}

Jahoor, Ahmed ^{[5
]}

Rasmussen, Morten ^{[6
]}

Mikkelsen, Teis Norgaard ^{[1
]}

Stockmarr, Anders ^{[7
]}

Jorgensen, Rikke Bagger ^{[1
]}

机构：

[1] Tech Univ Denmark, Ctr Ecosyst & Environm Sustainabil, Dept Chem & Biochem Engn, DK-4000 Roskilde, Denmark

[2] Univ Kassel, Fac Organ Agr Sci, Sect Organ Plant Breeding & Agrobiodivers, D-37213 Witzenhausen, Germany

[3] Univ Copenhagen, Dept Plant & Environm Sci, DK-1871 Frederiksberg C, Denmark

[4] MTT Agrifood Res Finland, Plant Prod Res, FI-31600 Jokioinen, Finland

[5] Nord Seed AS, DK-8464 Galten, Denmark

[6] Nord Genet Resource Ctr, SE-23053 Alnarp, Sweden

[7] Tech Univ Denmark, Dept Appl Math & Comp Sci, Sect Stat & Data Anal, DK-2800 Lyngby, Denmark

来源：

EUROPEAN JOURNAL OF AGRONOMY | 2015年 / 63卷

关键词：

Carbon dioxide; Carbon dioxide exploitation; Climate change; Combined treatment; Hordeum vulgare; Phenotypes; Production parameters; Ozone; Temperature; GENETIC DIVERSITY; GROWTH-RESPONSES; WHEAT CULTIVARS; POWDERY MILDEW; INCREASED CO2; GRAIN WEIGHT; ELEVATED CO2; CROP YIELD; TEMPERATURE; OZONE;

D O I：

10.1016/j.eja.2014.12.003

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The response in production parameters to projected future levels of temperature, atmospheric carbon dioxide ([CO2]), and ozone ([O-3]) was investigated in 138 spring barley accessions. The comprehensive set of landraces, cultivars, and breeder-lines, were during their entire life cycle exposed to a two-factor treatment of combined elevated temperature (+5 degrees C day/night) and [CO2] (700 ppm), as well as single-factor treatments of elevated temperature (+5 degrees C day/night), [CO2] (700 ppm), and [O-3] (100-150 ppb). The control treatment was equivalent to present average South Scandinavian climate (temperature: 19/12 degrees C (day/night), [CO2]: 385 ppm). Overall grain yield was found to decrease 29% in the two-factor treatment with concurrent elevation of [CO2] and temperature, and this response could not be predicted from the results of treatments with elevated [CO2] and temperature as single factors, where grain yield increased 16% and decreased 56%, respectively. Elevated [O-3] was found to decrease grain yield by 15%. Substantial variation in response to the applied climate treatments was found between the accessions. The results revealed landraces, cultivars, and breeder-lines with phenotypes applicable for breeding towards stable and high yield under future climate conditions. Further, we suggest identifying resources for breeding under multifactor climate conditions, as single-factor treatmentAid not accurately forecast the response, when factors were combined. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：105 / 113

页数：9