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Elevated field atmospheric CO2 concentrations affect the characteristics of winter wheat (cv. Bologna) grains
- Source :
- Crop and Pasture Science. 68:713
- Publication Year :
- 2017
- Publisher :
- CSIRO Publishing, 2017.
-
Abstract
- The aim of this study was to investigate the impact of elevated concentration of carbon dioxide (CO2), as expected over coming decades, on yield and quality of winter bread wheat (Triticum aestivum L.). Plants (cv. Bologna) were grown by using the free-air CO2 enrichment (FACE) system at Fiorenzuola d’Arda under ambient (control) and elevated (570 ppm, e[CO2]) CO2 concentrations for two growing seasons. We addressed whether there would be a response of wheat grains to elevated CO2 concentration in terms of the contents of nitrogen (N), micro- and macronutrients, proteins and free amino acids. Under e[CO2], total wheat biomass and grain yield increased in both years of the study. Grain N percentage was reduced under e[CO2], but grain N yield (kg ha–1) was increased. Among macro- and micronutrients, a decrease in zinc concentration was observed. The proteome pattern was significantly different in grains grown at the two different CO2 levels, but the observed changes were highly dependent on interactions with prevailing environmental conditions. Finally, a negative trend was observed in the early germination rates of seeds from plants grown under e[CO2] compared with the controls. The results suggest that the expected increase in CO2 levels and their interactive effects with environmental variables may influence agronomic performance by increasing yield and negatively affecting quality.
- Subjects :
- 0106 biological sciences
0301 basic medicine
chemistry.chemical_element
Growing season
Biomass
Plant Science
Zinc
Biology
candidate core proteins
01 natural sciences
03 medical and health sciences
chemistry.chemical_compound
proteomics
Animal science
proteomic
candidate core protein
food and beverages
Micronutrient
Nitrogen
climate change
Agronomy and Crop Science
030104 developmental biology
chemistry
Agronomy
Germination
Yield (chemistry)
Carbon dioxide
010606 plant biology & botany
Subjects
Details
- ISSN :
- 18360947
- Volume :
- 68
- Database :
- OpenAIRE
- Journal :
- Crop and Pasture Science
- Accession number :
- edsair.doi.dedup.....f0fe4754e12a61de2fffc1e48c05dc38