Journal article

Elevated carbon dioxide and nitrogen supply affect photosynthesis and nitrogen partitioning of two wheat varieties

P Li, X Hao, M Aryal, M Thompson, S Seneweera

Journal of Plant Nutrition | Taylor & Francis | Published : 2019

Abstract

© 2019, © 2019 Taylor & Francis Group, LLC. The response of wheat to elevated carbon dioxide concentration (e[CO2]) is likely to be dependent on nitrogen supply. To investigate the underlying mechanism of growth response to e[CO2], two wheat cultivars were grown under different carbon dioxide concentration [CO2] in a chamber experimental facility. The changes in leaf photosynthesis, C and N concentration, and biomass were investigated under different [CO2] and N supply. The result showed an increase in photosynthesis under e[CO2] at all N level except the one with the lowest N supply. Furthermore, a significant decrease in gs and Tr for both the cultivars was also observed under e[CO2] at ..

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