However, the magnitude
of [eCO2] induced reduction in grain protein concentration was
higher in our experiment suggesting that [eCO2] is likely to have
a greater impact on grain protein levels under warmer and drier
conditions which commonly experienced in most of the Australian
wheat cropping systems. Higher reduction in grain protein concentration
at [eCO2] was observed at TOS2 treatment than at TOS1 (Table
2).