Eduardo Habermann, Eduardo Augusto Dias de Oliveira, Matheus Enrique Bianconi, Daniele Ribeiro Contin, Maria Teresa Oliverio Lemos, João Vitor Campos Pinho Costa, Kamilla Silva Oliveira, Beatriz Neroni Riul, Fernando Bonifácio-Anacleto, Dilier Olivera Viciedo, Andressa Uehara Approbato, Ana Lilia Alzate-Marin, Renato de Mello Prado, Katia Aparecida de Pinho Costa, Carlos Alberto Martinez
The concentration of atmospheric CO2 and temperature are pivotal components of ecosystem productivity, carbon balance, and food security. In this study, we investigated the impacts of a warmer climate (+2 °C above ambient temperature) and an atmosphere enriched with CO2 (600 ppm) on gas exchange, antioxidant enzymatic system, growth, nutritive value, and digestibility of a well-watered, managed pasture of Megathyrsus maximus, a tropical C4 forage grass, under field conditions. Elevated [CO2 ] (eC) improved photosynthesis and reduced stomatal conductance, resulting in increased water use efficiency and plant C content...
February 15, 2024: Plant Physiology and Biochemistry: PPB