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Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology
Published by Universitas Diponegoro
ISSN : 18584748     EISSN : 25490885     DOI : -
Core Subject : Education,
Education
SAINTEK PERIKANAN (p-ISSN: 1858-4748 dan e-ISSN: 2549-0885) adalah jurnal ilmiah perikanan yang diterbitkan oleh Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro. Jurnal ini diterbitkan 2 (dua) kali setahun (Februari dan Agustus).
Arjuna Subject : -
Articles 492 Documents
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SUSTAINABILITY STATUS ANALYSIS OF ESTUARIAN MANAGEMENT (CASE STUDY: KUALA TRIPA ESTUARIAN WATERS) NAGAN RAYA REGENCY Edwarsyah Edwarsyah; Nabil Zurba; Putri Faza Syahida; Muhammad Banda Selamat
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 3 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.3.%p

Abstract

 The damage in Kuala Tripa Estuary needs sustainable management. This study is aim to determine the sustainability status of the ecological, social, economic, technological and institutional dimension as well as alternative directions for development policies in sustainable management of the Kuala Tripa estuary. This study uses a descriptive approach with the maintenance of survey methods and case studies. The study was conducted from May to July 2021. A total of 11 respondents were selected using purposive sampling and proportional sampling methods. Water quality measurements were also conducted (Salinity, dissolved oxygen, pH, temperature, BOD and COD) at three station points. To test the water quality, BOD (Bisolved Oxygent Demand) and COD (Chemical Oxygent Demand) were analyzed at the Aceh Health Laboratory. The data were analyzed using RAPFISH (Rapid Apprasial for Fisheries) software. The measured attributes are the ecological, social, economic, technological and institutional dimensions. The status of the Multi-Dimensional Scaling estuarine sustainability index status of Kuala Tripa is quite sustainable with a score of 55.41. The most sensitive attributes from the leverage analysis are used to identify efforts (policy recommendations) through the AHP (Analytical Hierarchy Process) method. The first alternative is water extension policy with a priority value of 0.29.
UJI BAKU MUTU PROBIOTIK IKAN BERBAHAN DASAR AIR LIMBAH CUCIAN BERAS, KULIT BAWANG PUTIH (Allium sativum), DAN FERMENTASI EKSTRAK DAUN KELOR (Moringa oleifera) M. Atho'illah; Mara Dwi Fadila; Abdus Salam Junaedi
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 4 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.4.240-246

Abstract

Probiotik merupakan mikroba hidup dengan sifat menguntungkan. Jumlah air limbah cucian beras sangat melimpah dan memiliki kandungan nutrisi yang cukup banyak, terutama karbohidrat sebesar 85-90%. Air limbah kulit bawang putih berfungsi untuk menghambat pertumbuhan bakteri seperti Escherichia coli, Staphylococcus aureus, dan Salmonella enteritidis. Daun kelor (Moringa oleifera) merupakan tumbuhan yang mempunyai kandungan protein sebesar 27-29%. Tujuan penelitian ini adalah mengevaluasi kombinasi terbaik probiotik yang dapat digunakan dalam budidaya perikanan guna meningkatkan pertumbuhan dan kualitas ikan. Penelitian ini menggunakan rancangan acak faktorial (RAF) 4x4 dengan 2 faktor. Faktor pertama berupa kultur fermentasi ekstrak daun kelor yang terdiri atas 4 perlakuan, yaitu 10%; 20%; 30%; dan 40% dengan kombinasi antara air limbah cucian beras dan air limbah kulit bawang putih sebesar 1:1. Faktor kedua berupa lama waktu fermentasi probiotik yang terdiri atas 4 perlakuan, yaitu 1; 2; 3; dan 4 minggu. Kontrol negatif berupa air limbah cucian beras dan kulit bawang putih dengan perbandingan 1:1 dan kontrol positif dengan penambahan probiotik EM4 berkonsentrasi 10%. Setiap perlakuan diuji menggunakan 3 pengulangan. Metode penelitian ini menggunakan metode observatif. Hasil penelitian menunjukkan bahwa probiotik ikan yang diamati menghasilkan pelet pada permukaan dasar wadah fermentasi, gelembung gas, perubahan warna menjadi cokelat kuning, perubahan bentuk wadah fermentasi, bau khas seperti bau tape, dan tidak adanya kontaminasi jamur. Probiotics are a living microbe with a beneficial nature. Rice dishwater is plentiful and has a good amount of nutrition, especially a carbohydrate of 85-90%. Garlic skin wastewater helps prevent the growth of bacteria such as Escherichia coli, Staphylococcus aureus and Salmonella enteritidis. Kelor (Moringa oleifera) is a plant that has a protein content of 27-29%. The aim of this study is to evaluate the best possible combination of probiotics that can be used in fisheries cultivation to promote the growth and quality of fish. The study uses randomly vectorial design 4x4 with 2 factors. The first factor is the four treatments fermentation culture extract of kelor leaves, which is 10%; 20%; 30%; and 40% by the combination of rice dishwater and garlic wastewater by 1:1. The second factor is long-term probiotic fermentation, consisting of 4 treatments, 1; 2; 3; and 4 weeks. The negative control of rice and garlic skin dishwater by comparison 1:1 and positive control with an additional probiotic EM4 concentrates 10%. Each treatment is tested using three repetitions. This research method using observative. Research indicates that probiotic fish observed produce pellets on the ground surfaces of fermentation containers, gas bubbles, discoloration to yellow chocolate, fermentation containers change in shape, typically smells like tape, and an absence of fungal contamination. 
ANALYSIS OF OPERATIONAL CHARACTERISTICS OF PURSE SEINE VESSELS BASED IN PPS NIZAM ZACHMAN USING VESSEL MONITORING SYSTEM DATA (Case Study at WPP 572) Khansa Harisa Fakhrunnisa; Imam Triarso; Hendrik Anggi Setyawan
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 3 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.3.%p

Abstract

A purse seine is one of the effective fishing gear, especially for catching pelagic fish. The fishing vessel based at Nizam Zachman Fishing Port Type A (PPSNZJ) and has an arrest permit in WPP 572 is dominated by purse seine. The surveillance function by the Ministry of Marine Affairs and Fisheries  (KKP) is carried out by looking at the position data of the ship recorded by the VMS, as well as looking at the fishing logbook by fishermen. The study aimed to identify the characteristics of purse seine vessels using VMS data derived from KKP and looked at the degree of conformity of VMS data with fishing logbooks. The method used in this research is descriptive analysis methods. Fishing ground data is mapped using spatial data processing software. The results showed that the characteristics of purse seine vessels in 2017 were most in operation in April - July, 2018 in January - June, and in 2019 in May. Cross-matching fishing logbook with VMS data from 2017 - 2019 increased by 68% in 2017, 80% in 2018, and 83% in 2019.
SUCCESSFUL GENETIC CHARACTERIZATION OF BULLET TUNA (Auxis rochei) USING MICROSATELLITE MARKERS IN KARANGASEM BALI Maya Agustina; Made Pharmawati; Ketut Junitha
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 3 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.3.%p

Abstract

Bullet Tuna (Auxis rochei) is classified under the neritic tuna group, which plays an essential role in small-scale fisheries in Karangasem Bali. The increasing catch of bullet tuna indicated its stock probably under threat. Therefore, genetic characterization is often required as the first step before building a conservation program. This study aims to categorize bullet tuna DNA using microsatellite. Of all five loci used, all were high polymorphism-type, with the number of alleles per locus varied between 18-27. Successful PCR (Polymerase Chain Reaction) created relatively high DNA concentration, ranging from 27.050 to 237.05 ng/ul, with a DNA purity level ranging from 2.073 to 2.239. Overall, the stock condition allegedly still in good condition, marked with high genes diversity (Ho=0.367-0.767 and He=0.934-0.966). All loci used can be amplified and well described.
PENGGUNAAN CELAH PELOLOSAN PADA BUBU UNTUK MENGURANGI TERTANGKAPNYA KERAPU MUDA DI PULAU KARIMUNJAWA (The Use of Escape Gaps on the Basket Trap for Reducing Immature Grouper Catch in Karimunjawa Island) Irma Dwi Maulina; Ari Purbayanto; Tri Wiji Nurani
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 4 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.4.254-261

Abstract

Penggunaan alat tangkap bubu telah berkontribusi dalam kegiatan pemanfaatan sumber daya perikanan karang di Pulau Karimunjawa. Salah satu target tangkapan bubu yakni ikan kerapu yang merupakan ikan konsumsi bernilai ekonomis tinggi. Permintaan ikan kerapu terus meningkat, sehingga nelayan cenderung menangkap semua ukuran, termasuk ikan kerapu muda yang belum pernah memijah (immature). Dewasa ini, kondisi perikanan kerapu terindikasi mengalami penurunan stok akibat tekanan penangkapan. Apabila hal ini diabaikan, tidak menutup kemungkinan bahwa kegiatan penangkapan berpeluang mengancam status keberlanjutan sumber daya ikan. Salah satu cara untuk mengurangi hasil tangkapan kerapu belum layak tangkap yakni dengan penggunaan celah pelolosan. Namun belum diketahui sejauh mana efektivitasnya ketika diaplikasikan pada penangkapan ikan karang dengan bubu di Karimunjawa. Oleh karenanya penelitian ini bertujuan mengkaji efektivitas penggunaan celah pelolosan pada bubu dalam mengurangi peluang tertangkapnya kerapu muda belum layak tangkap serta kelangsungan hidup kerapu pasca penangkapan. Penelitian dilakukan dengan metode experimental fishing. Pengambilan data dilakukan melalui observasi dan pengukuran langsung di lapangan. Kurva rasio kelangsungan hidup ikan dihitung dengan metode kuadrat terkecil non linier menggunakan fasilitas Solver pada MS-Excel. Hasil penelitian menunjukkan bahwa penggunaan celah pelolosan pada bubu dapat menurunkan hasil tangkapan ikan kerapu muda yang belum layak tangkap dari 66.70% menjadi 45.50%. Penggunaan celah pelolosan telah mampu menurunkan hasil tangkapan ikan kerapu belum layak tangkap dengan tingkat efektivitas 69.20%. Ikan kerapu pasca pelolosan dapat bertahan hidup dengan rasio kelangsungan hidup sebesar 77.88% dimana rasio kelangsungan hidup ikan juvenil (86.4%) lebih tinggi dibanding ikan kerapu dewasa (69.2%) pada hari ke-8 pasca penangkapan. The use of basket traps has contributed to the utilization of reef fisheries resource in Karimunjawa Island. The basket trap is a fishing gear that dominant used for capturing grouper, which is a high economic valueble fish consumption. The demand for groupers continues to increase, so fishermen tend to catch all sizes of groupers, including young immature fish. Currently, there are indications that the condition of grouper fisheries has decreased in stock due to fishing pressure. If this is ignored, there may be opportunities to threaten the sustainability status of grouper fish resources. An option to reduce the catch of immature grouper is the use of escape gaps. However, it is not yet known to what extent its effectiveness for fishing activities in Karimunjawa Island. Therefore, this study aims to examine the effectiveness of using the escape gap in traps for reducing the chances of catching immature groupers. The research was conducted using an experimental fishing method. The data collection method was carried out through field observations. Fish survival ratio were calculated using non linier least square method by the solver facility. The results showed that the catch of immature groupers decreased from 66.7% to 45.5%. The use of escape gaps was able to reduce immature grouper with and effectiveness of 69.2%. Grouper can survive after passing through the escape gap with a survival ratio at the eighth day of observation was 77.8%, where the survival ratio of juvenile (86.4%) is higher than adult groupers (69.2%).
THE EFFECT OF DIFFERENCES IN ARTIFICIAL BAIT COLOR AND SOAKING TIME IN HAND-LINE FISHING GEAR ON TUNAS (E. afinnis) IN SENDANG BIRU WATERS, MALANG, INDONESIA Nadia Elis Febrita; Aristi Dian Purnama Fitri; Kukuh Eko Prihantoko
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 3 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.3.%p

Abstract

Hand-line fishing gear is traditionally used by fishermen in Sendang Biru, Malang, Indonesia to catch Euthynnus affinis. Therefore, this study aims to analyze the color differences of the artificial bait and soak time of E. afinnis's catch. The study was conducted in the waters of Sendang Biru, Malang, Indonesia from July to August 2019, with the experimental fishing method by comparing the artificial bait color variables (white, red, blue, and gray) and soaking time (2 and 20 minutes). The results showed that the artificial red bait color gave the most catches and was affected by the soaking time (with a significant level of 0.05).
SPATIAL DISTRIBUTION ANALYSIS OF FIELD BATHYMETRY AND LANDSAT 8 SATELLITE IMAGERY ON THE FISH POTS CATCH IN JEPARA REGENCY Zulyani Zulyani; Agus Hartoko; Herry Boesono
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 3 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.3.%p

Abstract

Pots operated are traping fishes and passived, making the fish easier to get in and difficult to escape. Problems faced  fisherman is difficulty finding ideal fishing grounds. This study to analyze real bathymetry spatial distribution and Satellite Imagery Landsat 8 with operationing of pots in Jepara. This study uses the methods purposive sampling with primary data is real bathymetry, and fish measures from pots catching. Secondary data is tides local and satellite imagery Landsat 8.  Result of polynomial regression Landsat 8 bathymetry to real bathymetry is 25.88%, whereas the Landsat 8 bathymetry against long size of fish catched is only 5% and 3.3% bathymetry was able to explain the fish weight variables. On real bathymetry with long size of fish is only 3.6%  define long size variables and 1.6% for weight variables. Hypothesis is tested with linear regression in SPSS 22. Test results assumed spatial distribution of bathymetry had no effect on the catch of pots. Based on a simple linear regression test, the effect values is only 0.9 % while on fish weight there was no effect at all. Results of real bathymetry analysis with satellite image Landsat 8 have a relationship with a coefficient of determination value is 0.258).
ASPEK DINAMIKA POPULASI IKAN PETEK (Leiognathus equulus) DI PERAIRAN TELUK SEMARANG JAWA TENGAH Anhar Solichin; Suradi Wijaya Saputra; Aninditia Sabdaningsih
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 4 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.4.234-239

Abstract

Ikan Petek (Leiognathus equulus, Forsskal 1775) hidup di dasar perairan sampai dengan permukaan pada perairan pantai yang dangkal, sering tertangkap dengan alat tangkap arad, cantrang atau tarik lainnya yang beroperasi di dasar perairan. Nilai ekonomis ikan Petek relatif rendah dan umum dikonsumsi sebagai ikan asin. Petek merupakan hasil tangkap sampingan yang dominan tertangkap di perairan Teluk Semarang. Kondisi ini menjadi rawan jika laju penangkapannya di suatu perairan cukup tinggi dan terus meningkat. Penelitian ini dimaksudkan untuk mengkaji dinamika populasi ikan Petek di perairan Teluk Semarang Jawa Tengah. Metode penelitian yang digunakan adalah metode survei. Sampel ikan diambil dari PPI yang menjadi pangkalan pendaratan bagi alat tangkap arad di perairan Teluk Semarang, yaitu PPI Tanggulmalang dan Bandengan di Kabupaten Kendal dan PPI Tambaklorok Kota Semarang. Penelitian dilaksanakan mulai bulam April sampai dengan Agustus 2021. Berdasarkan uraian di atas dapat disimpulkan pada penelitian ini bahwa ikan Petek yang tertangkap di perairan Teluk Semarang memiliki panjang total berkisar antara 100– 245 mm. Musim rekrutmen terjadi pada bulan Maret sampai dengan bulan September. Hubungan panjang – bobot ikan Petek mengikuti persamaan W = 0,00002 L3,05, dengan pola pertumbuhan isomatrik. Ikan Petek mengikuti persamaan pertumbuhan von Bertalanffy Lt = 170(1-exp-0,66(t+0,08528)). Laju mortalitas total (Z) ikan Petek sebesar 1,64/tahun, F sebesar 0,79/tahun, lebih kecil dari mortalitas alaminya (M) yaitu 0,85/tahun. Tingkat eksploitasi (E) adalah 0,48, masih sedikit di bawah optimum (Eopt = 0,5). Ukuran yang tertangkap didominasi ikan berukuran kecil/belum dewasa (Lc<Lm), sehingga cenderung terjadi growth overfishing, dan dapat mengarah terjadinya kelangkaan induk (recruitment overfishing).
DIETARY LYSINE REQUIREMENT OF JAVA BARB (Puntius javanicus BLEEKER, 1855) FINGERLINGS TO OPTIMIZE FEED EFFICIENCY, GROWTH, AND NUTRIENT CONTENTS Diana Rachmawati; Istiyanto Samidjan; Tita Elfitasari; Rosa Amalia; Dewi Nurhayati
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 3 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.3.%p

Abstract

The slow growth of the Java barb (Puntius javanicus Bleeker, 1855) fingerlings is due to the feeding of plant-based protein which is usually lack of lysine.  The lack of it, can hinder the feed efficiency and growth. The best way to solve the problem is by adding lysine in the diet. The objectives of the study were to determine optimal needs of lysine to increase feed efficiency, growth, and nutrient contents of Java barb.  The fish samples were fingerlings of Java barb which weighed from 3.26 to 3.78 g-1 fish. The feed comprised 30% isoprotein and 262 Kcal isoenergy supplemented with lysine amino acid.  The dosages of the lysine in the diet were 1.25% (A1), 1.5% (A2), 1.75% (A3), 2.0% (A4), 2.25% (A5), and 2.5% (A6) of dried diets. The parameters observed were relative growth rate (RGR), apparent digestibility coefficients of protein (ADCp), efficiency of feed usage (EFU), feed conversion ratio (FCR), protein efficiency ratio (PER), survival rate (SR), hepatosomalic index (HSI), viscerosomatic index (VSI) and nutrient contents of Java barb. The results of the study disclosed that the enrichment of lysine into the diet increased the feed utilization, the growth and the nutrient contents of Java barb.  The needs of lysine for Java Barb (Puntius javanicus) fingerlings to optimize feed efficiency, growth, and nutrition contents ranged from 1.58% to-1.70% dried diet (5.3 to 5.6 % of protein diet).
PENGARUH PENAMBAHAN ENZIM PROTEASE TERHADAP SPESIFIKASI PUPUK ORGANIK CAIR Sargassum sp. Zusuf Adi Putra; Eko Nurcahya Dewi; Lukita Purnamayati; Laras Rianingsih
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 18, No 1 (2022): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.18.1.47-52

Abstract

Pupuk organik cair dari Sargassum sp. dengan perlakuan konsentrasi enzim protease yang berbeda yaitu 0 %, 1 %, 2 % dan 3 % diharapkan mampu menaikan kandungan unsur hara dan hormon pertumbuhan pada tanaman. Tujuan dari penelitian ini untuk mengetahui pengaruh perbedaan konsentrasi protease terhadap kandungan unsur hara pada pupuk organik cair. Pupuk cair dibuat dengan pengecilan ukuran Sargassum sp. dan perendaman dengan larutan asam fosfat. Homogenisasi dan pemanasan dengan penambahan molase 3% sebagai sumber nutrisi mikroba dan KOH 1% untuk memaksimalkan kandungan mineral. Proses fermentasi dilakukan selama 10 hari sebagai fase eksponensial mikroba Trichoderma sp. yang berperan dalam fiksasi nitrogen dan menghasilkan fitohormon, serta sebagai dekomposer bahan organik. Hasil analisis ANOVA dan uji Tukey menunjukkan bahwa perlakuan konsentrasi enzim protease yang berbeda memberikan perbedaaan nyata. Komposisi enzim protease dengan konsentrasi 3% memberikan nilai tertinggi pada C-Organik (1,56%), Nitrogen (0,90), fosfor (0,88%) dan kalium (0,85%), sedangkan untuk rendemen (65,83%) dan nilai pH (6,33%) dengan nilai tertinggi yaitu enzim protease dengan konsentrasi 0%. Hormon pertumbuhan pada pupuk organik cair yaitu auksin, giberelin, asam absisat, zeatin dan kinentin. Hasil hormon pupuk organik cair dengan penambahan enzim yaitu hormon auksin 36%, giberelin 29%, zeatin 16% dan kinentin 17%, sementara untuk asam absisat lebih rendah yaitu sebesar 99%. Liquid organic fertilizer from Sargassum sp. with the treatment of different concentrations of protease enzymes, namely 0%, 1%, 2% and 3% are expected to increase the content of nutrients and growth hormones in plants. The purpose of this study was to determine the effect of differences in protease concentrations on the nutrient content of liquid organic fertilizer. Size reduction of Sargassum sp. and soaking in phosphoric acid solution. Homogenization and heating with the addition of 3% molasses as a source of microbial nutrition and 1% KOH to maximize mineral content. The fermentation process was carried out for 10 days as the exponential phase of Trichoderma sp. which plays a role in nitrogen fixation and produces phytohormones, as well as decomposers of organic matter. The results of ANOVA analysis and Tukey's test showed that the treatment of different concentrations of protease enzymes gave significant differences. The composition of the protease enzyme with a concentration of 3% gave the highest value for C-Organic (1.56%), Nitrogen (0.90), phosphorus (0.88%) and potassium (0.85%), while the yield (65, 83%) and the highest pH value (6.33%) was the protease enzyme with a concentration of 0%. Growth hormones in liquid organic fertilizers are auxin, gibberellins, abscisic acid, zeatin and kinentin. The yield of liquid organic fertilizer hormones with the addition of enzymes, namely 36% auxin hormone, 29% gibberellin, 16% zeatin and 17% kinentin, while for abscisic acid is lower at 99%.

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