Gutierrez, L., Crocomo, O., & Rossi, C. (1989). Effect of potassium deficiency on glutamate dehydrogenase and glutamate synthase activities in bean leaves (Phaseolus vulgaris L.) . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 46(1), 125-134. https://doi.org/10.1590/S0071-12761989000100009