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All Journal Jurnal Agriment
Nisa Budi Arifiana
Budidaya Tanaman Perkebunan, Politeknik Negeri Jember
Agriculture, Biological Sciences & Forestry

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The Effect Of Giving Natural ZPT On The Growth Of Cocoa Stem Cuttings (Theobroma cacao L.) From Plagiotropic Clonal Cocoa (PCC) Sulawesi Clone Fadhil Rachman Mutaqien; Nisa Budi Arifiana; Triono Bambang Irawan
JURNAL AGRIMENT Vol. 10 No. 1 (2025): Juni 2025
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/jurnalagriment.v10i1.3404

Abstract

Cocoa (Theobrama cacao L.) is one of the plantation products that has a very high economic value. Cocoa productivity has decreased every year. In 2019, cocoa productivity in Indonesia was 734,795 thousand tons and has decreased every year until 2022, cocoa productivity was 650,612 thousand tons. To overcome this, plant rejuvenation and provision of superior planting materials are needed. One common propagation technique is stem cuttings, which is growing new plants from parts of the parent plant. The success of propagation through cuttings is highly dependent on the ability of the cuttings to grow roots, a process that can be enhanced by administering plant growth regulators, especially those from the auxin group. This study aims to evaluate the effect of natural plant growth regulator (PGR) concentrations on clonal stem cuttings of Plagiotropic Cocoa (PCC) Sulawesi 01. The experiment was conducted from August 2024 to January 2025 at the Jember State Polytechnic. The non-factorial Randomized Complete Block Design (RBD) used was P0 (control), P1 to P4 (long bean sprout extract concentrations of 20%, 40%, 60%, and 80%, respectively), and P5 to P8 (coconut water concentrations of 20%, 40%, 60%, and 80%, respectively). Each treatment was repeated three times, with two experimental samples per replication. The results showed that the administration of natural ZPT at the highest coconut water concentration (80%, P8) significantly increased shoot height at 90, 120, and 150 days after planting (DAP), as well as root length at 150 DAP, compared to other treatments.
Effect of Shallot Extract on the Growth of Cocoa Cuttings from Sulawesi 01 Clone Orthotropic Shoots Ahmad Naufal Zayin Amrullah; Nisa Budi Arifiana; Rahmawati
JURNAL AGRIMENT Vol. 10 No. 1 (2025): Juni 2025
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/jurnalagriment.v10i1.3406

Abstract

Cocoa (Theobroma cacao L.) is a key plantation commodity, with Indonesia being one of the world's largest producers. This study aimed to evaluate the effect of shallot (Allium ascalonicum L.) extract concentrations as a natural plant growth regulator on the vegetative growth of cocoa cuttings derived from Orthotropic Shoot Cocoa (OSC) of Sulawesi Clone 01. The research was conducted from August 2024 to January 2025 at the Seed Technology Laboratory Nursery, Jember State Polytechnic. A non-factorial Randomized Complete Block Design (RCBD) was used, consisting of five treatments: 0% (control), 25%, 50%, 75%, and 100% shallot extract concentrations, each with five replications. Observed parameters included survival percentage, shoot height, and dry biomass weight. The results showed that shallot extract had no significant effect on the survival percentage of cuttings. However, it had a significant to highly significant effect on shoot height at 60, 90, 120, and 150 days after planting (DAP), and on dry biomass weight. The best vegetative growth was observed at 100% concentration (BM4), followed by 75% (BM3). This suggests that the auxin and nutrient content in shallot extract can enhance cell metabolism and growth, thereby supporting better shoot development and biomass accumulation. In conclusion, shallot extract has potential as an organic plant growth regulator to improve cocoa cutting performance, particularly at concentrations between 75% and 100%
Co-Authors Ahmad Naufal Zayin Amrullah Fadhil Rachman Mutaqien Rahmawati Triono Bambang Irawan