Effect of boron application on calcium and boron concentrations in cell wall of durum (Triticum durum) and bread (Triticum aestivum) wheat

Abstract

ABSTRACTA greenhouse experiment was conducted with three doses of boron (0, 1, and 10 mg B kg−1 in the form of boric acid (H3BO3). Durum wheat (Triticum durum L. cv: Çakmak-79) and bread wheat (Triticum aestivum L. cv: Gerek-79) cultivars were used as plant material. B toxicity symptoms strongly appeared in durum wheat compared to bread wheat. Applications of B at 1.0 mg B kg−1 stimulated and increased the dry weights of both the cultivars, while high level B application (i.e., 10 mg B kg−1) depressed and decreased the dry weights significantly. B concentration and uptake in the leaf tip were increased with an increase in B application, whereas calcium (Ca) concentration and uptake were decreased in both the cultivars. It was observed that a substantial amount of B was accumulated in the plant cell wall. As similar to leaf tips, B concentrations in the cell wall also increased with B application, whereas Ca concentration was decreased.