02080naa a2200265 a 450000100080000000500110000800800410001902400480006010000230010824501050013126000090023652012990024565000130154465000110155765000110156865000220157965000200160170000230162170000200164470000200166470000230168470000170170770000230172477300670174721433342022-05-24       2020    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.5296/jas.v8i4.161142DOI1 aMONTEIRO, M. G. T.  aIn vitro induction of callus and flowers in immature oil palm inflorescences.h[electronic resource]  c2020  aThis work aimed to investigate the effects of different combinations of auxin (0, 225 and 450 μM Picloram) and Murashige and Skoog salts (50% and 100% MS salt concentrations, respectively named as ½ MS and MS) in mediate the induction of callus and flowers from immature inflorescences (developmental stages I-9, I-12 and I-15) of the oil palm BRS ? Manicoréhybrid. In I-9 inflorescence explants, the rate of callus induction was 17% higher in ½ MS than in MS; while in both I-12 and I-15 inflorescence explants, callus induction was over than 95% regardless of the MS salt concentration. The higher rate of callus induction in I-9 inflorescences was mediated by 450 μM Picloram, while the callus induction rates for either I-12 or I-15 inflorescences were higher than 92% regardless of Picloram concentration. Floral induction was lower in I-9 inflorescence explants (45% floral induction rate) than in both I-12 and I-15 inflorescence explants (floral induction rate higher than 90%). Our results suggest that Picloram (450 μM) and MS salts concentrations (½ MS) led to the highest rates of calluses and flowers induction in younger inflorescence explants (I-9); however, the medium composition is indifferent on callus and flower induction in I-12 and I-15 inflorescences.  aPicloram  aAuxina  aDendê  aElaeis Guineensis  aElaeis Oleifera1 aSOUZA, J. M. de M.1 aPINHEIRO, H. A.1 aLEMOS, O. F. de1 aOLIVEIRA, R. P. de1 aBOÁS, B. B.1 aSOUZA, F. I. B. de  tJournal of Agricultural Studiesgv. 8, n. 4, p. 712-725, 2020.