PERKECAMBAHAN BIJI KAKAO (Theobroma cacao L.) PADA TANAH GAMBUT DENGAN PEMBERIAN GIBERELIN DAN EKSTRAK TOMAT

Authors

  • Nurwahyuni Khairunnisa Jurusan Biologi - Fakultas MIPA Universitas Tanjungpura Jl. Prof. Dr. H. Hadari Nawawi Pontianak - Kalimantan Barat
  • Siti Ifadatin Jurusan Biologi - Fakultas MIPA Universitas Tanjungpura Jl. Prof. Dr. H. Hadari Nawawi Pontianak - Kalimantan Barat
  • Mukarlina Mukarlina Jurusan Biologi - Fakultas MIPA Universitas Tanjungpura Jl. Prof. Dr. H. Hadari Nawawi Pontianak - Kalimantan Barat

DOI:

https://doi.org/10.26418/protobiont.v12i2.71089

Keywords:

Tomato extract, Gibberellin, Cocoa, Peat soil

Abstract

Cocoa is a plant whose seeds are recalcitrant and have germination inhibiting compounds. Efforts to improve the quality of cocoa seed germination can be done by soaking seeds in natural or synthetic solutions containing growth regulators. This study aims to determine the effect of gibberellin and tomato extract on cocoa bean germination. This study used a completely randomized design (CRD) factorial pattern with 2 factors. Factor 1 is gibberellin concentration consisting of 2 levels, namely G0: 0 ppm and G1: 5 ppm and factor 2 is tomato extract consisting of 4 levels, namely T0: 0 g/L, T1: 50 g/L, T2: 100 g/L, and T3: 150 g/L. Data analysis used mean values for all measured growth parameters. The results showed that the concentration of gibberellin 5 ppm and tomato extract 100 g/L produced the best radicle length on day 5 which was 1.93 cm. Gibberellin concentration of 0 ppm and 50 g/L tomato extract produced the best plumula  length on day 12 which was 4.17 cm.

Downloads

Published

2023-07-31

Issue

Vol. 12 No. 2 (2023)

Section

Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a  Creative Commons Attribution-ShareAlike License  that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are not restricted by the journal from entering into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., posting it to an institutional repository or publishing it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) after its publication in this journal. This approach aims to safeguard against potential plagiarism or unauthorized use of unpublished manuscripts, as outlined in the submission guidelines which state that this journal does not accept previously published manuscripts.