Journal article

Differential root responses in two cultivars of winter wheat (Triticum aestivum L.) to elevated ozone concentration under fully open-air field conditions

T-J Kou, W-W Yu, SK Lam, D-L Chen, Y-P Hou, Z-Y Li

JOURNAL OF AGRONOMY AND CROP SCIENCE | WILEY | Published : 2018

Abstract

The effect of elevated tropospheric ozone concentration [O3] on root processes in wheat systems of different O3 sensitivity is not well understood. Two wheat cultivars (cv. Y15 and YN19) with contrasting O3 tolerance were grown in a fully open-air O3 enrichment platform for one season. We found that elevated O3 (EO3) (50% above the ambient O3) significantly decreased the total biomass at all key growth stages and the yield of the O3-sensitive cultivar YN19 but did not affect those of the O3-tolerant cultivar Y15. EO3 significantly decreased the root biomass of two wheat cultivars at the jointing and grain-filling stages. EO3 significantly decreased the root length, length density, surface ar..

View full abstract

Grants

Awarded by Open Research Fund Program of State Key Laboratory of Soil and Sustainable Agriculture


Awarded by National Natural Science Foundation of China


Awarded by Innovation Team Foundation of Henan University of Science and Technology


Funding Acknowledgements

Open Research Fund Program of State Key Laboratory of Soil and Sustainable Agriculture, Grant/Award Number: Y052010030; National Natural Science Foundation of China, Grant/Award Number: 41003030; Innovation Team Foundation of Henan University of Science and Technology, Grant/Award Number: 2015TTD002