Effect of high CO2 concentrations on antioxidant defenses of seedlings of Psidium guajava L. cv. Pedro Sato - Rezende, Fernanda Mendes; Silva, Leila Sampaio; Buckeridge, Marcos; Furlan, Cláudia Maria (International IUFRO Conference Vegetation Response to Climate Change and Air Pollution - Unifying research and evidence across northern and southern hemisphere, 2013)