“…Studies to establish the frequency of hybrids in citrus are found in the literature in relation to the genetic improvement of culture stocks (Soares Filho et al 2014, Soares Filho et al 2007, Oliveira et al 2000. In the present study, the frequency of hybrids generated in the cross 'Rangpur Santa Cruz' x P. trifoliata showed no significant variation between the 40 and 100% of PC water deficit treatments, with 64.21 and 52.63% hybrids, respectively (Table 1).…”