Polyploidy induction has been successfully applied in vegetables,
ornamental and medicinal plants in order to obtain lines
exhibiting new agronomical characteristics. This procedure has
provided plants without seeds, with significantly larger fruits and
flowers, longer lasting flowers, which overcome hybridization
barriers, show enhanced pest resistance and physical stress
tolerance (Sanford, 1983; Predieri, 2001). These effects can vary
according to species, degree of heterozygosity and ploidy level
(Zhang et al., 2008).