Fig. 5. Effects of heat stress [control (ct), 2 (2d), and 4 (4d) DHS] on zein concentration in endosperms of growth chamber (A–E) and field-grown kernels (F–J). The 27-kDa zein (A and F), 19 + 22-kDa zeins (B and G), 16-kDa zein (C and H), the 15-kDa zein (D and I), and the 10-kDa zein (E and J) were analyzed. Values are means, compared by LSD at 5% (*) or 1% (**) levels of significance.