Perbanyakan Padi Fl Interspesifik untuk Bahan Silang Balik (Back Cross)

Abstract

A lot of plant materials are neededfo r successfubl ack crossp rogram of interspecificF 1 rice to their reccurrent parents. Multiplication of the steril F 1 plants through tiller propagation is not adequate. The research aims to develop techniqueo f vegetatifm ultiplication of interspesifich ybrid rice utilizing nodal segmentsI.n the vegetatifm ultiplication expriment, several factors were examined as treatments: nutrition culture (MS, Yoshida, and water), stum position (first, second and thirtd) and growth media (vermiculite, husk charcoal, and sand). The plant materials are interspecific Fl rice i.e. Ranah Sanra (genom AA) x O. officinalis 100870 (genom CC), Hawara Bunar (genom AA) x O. Punctata 9101411 (genom BB), Grogol (genom AA) x O. punctata 9101411 (genom BB), CT 6510-24-1-3 (genom AA) x O. malamphuzaensis1 00957( genomB BCC). Resultso f the study indicated that MS and Yoshidan utrition, stum without sheath, base of stum and sand media gave better growth more than other treatments.