The literature documents some studies that have been carried out using growth regulators on Epidendrum radicans orchids (Pateli, 2004) to reduce final plant height; on Phalaenopsis hybrids (Wang and Hsu, 1994)
to control the length of inflorescences and on Cattleya mossiae (Torres and Mogollon, 2002) to achieve a reduction in the number of shoots. Various growth regulators are commercially available, including chlormequat chloride (CCC) and paclobutrazol (Grossi et al., 2009).