Multiplication of embryogenic calli in Coffea arabica L. - doi: 10.4025/actasciagron.v34i1.11230
DOI:
https://doi.org/10.4025/actasciagron.v34i1.11230Keywords:
culture media, cultivation systems, genotypeAbstract
The goal of this project was to evaluate the embryogenic callus induction of two Coffea arabica clones selected for their characteristics of rust resistance and high yield, as well as to compare their multiplication in two different media under both solid and liquid cultivation conditions. The protocol described by Teixeira et al. (2004) was used for callus induction in a randomized block design in which each clone was considered a treatment. Evaluation of callus induction was carried out 180 days after initiation by counting embryogenic calli. For callus multiplication, the treatments consisted of two different media [stage two of Albarran et al. (2004) and the multiplication medium described by Teixeira et al. (2004)] and two cultivation systems (solid and liquid). Evaluations were conducted by weighing calli 21, 42 and 63 days after initiation of the experiment. The two studied clones exhibited the same potential for embryogenic callus induction. The potential for embryogenic callus multiplication was influenced by the plant’s genotype. When compared with the liquid system, the solid system displayed the highest level of embryogenic callus multiplication for the clones studied.
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