Biomass production and water use efficiency in perennial grasses during and after drought stress

Abstract

Drought is a great challenge to agricultural production, and cultivation of drought-tolerant or water use-efficient cultivars is important to ensure high biomass yields for bio-refining and bioenergy. Here, we evaluated drought tolerance of four C-3 species, Dactylis glomerata cvs. Sevenop and Amba, Festuca arundinacea cvs. Jordane and Kora, Phalaris arundinacea cvs. Bamse and Chieftain and Festulolium pabulare cv. Hykor, and two C-4 species Miscanthusxgiganteus and M.lutarioriparius. Control (irrigated) and drought-treated plants were grown on coarse and loamy sand in 1 m(2) lysimeter plots where rain was excluded. Drought periods started after harvest and lasted until 80% of available soil water had been used. Drought caused a decrease in dry matter yield (DM; P

Keywords

bioenergy; bio-refining; carbon isotopic composition; drought tolerance; dry matter yield; intercepted photosynthetically active radiation; leaf water potential; radiation use efficiency; ratio vegetation index; stomatal conductance

Published in

Global Change Biology
2018, volume: 10, number: 1, pages: 12-27

SLU Authors

• Jensen, Erik Steen

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

• Dimitrova Mårtensson, Linda-Maria

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

Global goals (SDG)

SDG7 Affordable and clean energy
SDG12 Responsible consumption and production

UKÄ Subject classification

Other Biological Topics
Other Agricultural Sciences not elsewhere specified
Botany

Publication identifier

• DOI: https://doi.org/10.1111/gcbb.12464

Permanent link to this page (URI)

https://res.slu.se/id/publ/86287