Foliar sprays of growth regulators have commercial potential for improving the performance some parameters associated with alternate bearing in pecan trees. The objective was to evaluate behaviour through analysis seasonal variations buds and leaflets non-structural carbohydrates (glucose, fructose, sucrose, starch), mineral nutrients (N-total, P, K+, Ca2+, Mg2+, Fe2+, Cu2+, Mn2+ Zn2+), yield c...