TheseasonlongmeanfortheestimatedO3flux(nmol m2 s1)into
theleafvariedfromaminimum2.31underACO2 + RO3 toamaximum
of 23.41 in ACO2 + EO3 at 30 DAE (Fig.1). At 60 DAE maximum O3 flux
was recorded under ACO2 + EO3 followed by ACO2 + AO3, ECO2 + EO3,
ECO2 + AO3, and minimum under ACO2 + RO3.