Castro, Paulo R.C., et al. “ Effects of Plant Stimulants and Growth Regulators in Cucumber (Cucumis Sativus L.) ”. Anais Da Escola Superior De Agricultura Luiz De Queiroz, vol. 44, no. 1, Jan. 1987, pp. 376-88, https://doi.org/10.1590/S0071-12761987000100019.