Fig. 4. Effects of heat stress [control (ct), 2 (2d), and 4 (4d) DHS] on albumins plus globulins (A and D), zein (B and E), and glutelin (C and F) concentrations in endosperms of growth chamber- (A to C) and field-grown kernels (D to E). Values are means, compared by LSD at 5% (*) or 1% (**) levels of significance.