Roberto, Sergio Ruffo, et al. “Ethephon Use and Application Timing of Abscisic Acid for Improving Color of ’Rubi’ Table grape”. Pesquisa Agropecuaria Brasileira, vol. 48, no. 7, Oct. 2013, pp. 797-00, https://doi.org/10.1590/S1678-3921.pab2013.v48.14262.