Effect of Different Plant Growth Regulators on Micropropagation of Some Pitaya Varieties

Pitaya belongs to the family Cactaceae and genus Hylocereus. It is essential todevelop tissue culture protocols according appropriate variety spread pitayacommercial production ensure healthy sapling production. This study aimed todetermine best plant growth regulators (PGRs) in micropropagation process,and their effects on different pitaya cultivars were evaluated. Shoots of pitayacultivars cultured Murashige Skoog (MS) basal medium supplementedwith Indole-3-butyric (IBA), 6-benzyl amino purine (BAP), gibberellic acid(GA3). The highest coefficient was determined Physical Graffitivariety MS supplemented with 2 mg/L BAP. general evaluation based that RoyalRed variety. In vitro rooting studies, Royal Red(54.47%), followed by Siam Red (50.33%), Graffiti (47.75%), SeoulKitchen (44.82%). grown R2 (MSmedium 1 mg/l IBA) gave results all criteriaof shoot length (4.28 cm), root (6.45 formation face(74.48%). envisioned these differences between micropropagation,growth, used studies resulted from cultivar characteristics.Keywords: Pitaya, vitro, Micropropagation, Red, Seoul Kitchen, Red,Physical