PEMATAHAN DORMANSI DAN PERKECAMBAHAN BIJI KOPI ARABIKA (COFFEA ARABIKA L.) DENGAN ASAM SULFAT (H2SO4) DAN GIBERELIN (GA3)
ABSTRACT: Arabica coffee
(Coffea arabica L.) is one of the commodities witha high economic value. The
production of the arabica coffee plant (C. arabica L.) is influenced by seed
dormancy. This research aimed to find out the effect of sulfuric acid (H2SO4)
and gibberellin (GA3) in accelerating the dormancy breaking and germination of
the seeds of arabica coffee (C. arabica L.). This research used a completely
randomized design (CRD), which consisted of two factors. The first factor was
the concentration of H2SO4consisting of 5 treatments, i.e. the concentration of
0% (A0), 5% (A1), 10% (A2), 15% (A3), and 20% (A4). The second factor was the
concentration of 0 ppm GA3 0 ppm (B0), 20 ppm (B1), 40 ppm (B2), 60 ppm (B3),
dan 80 ppm (B4). Each treatment was repeated 3 times, so 75 experimental units
were obtained. Data were analyzed using ANOVA (Analysis of Variance) and a
further test using the Duncan test. The research findings showed thatthe
treatment of sulfuric acid (H2SO4) at concentration of 10% was the best
concentration for accelerating the growth ofthe seed of arabica coffee (C.
arabica L.) with a percentage of 57.18%. The combination of sulfuric acid
(H2SO4) of 10% and gibberellin (GA3) of 40 ppm was the best concentration for
the growth of germination of arabica coffee (C. arabica L.) with a percentage of
38%.
Penulis: Devi Lestari, Riza
Linda, Mukarlina
Kode Jurnal: jpbiologidd160124
