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All Journal Bio-Lectura Bioscientist : Jurnal Ilmiah Biologi Agrimansion: Agribusiness Management & Extension Jurnal Ilmiah Management Agribisnis (Jimanggis)
Sorel, Deni
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Social Sciences

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PROPAGASI IN VITRO KALIANDRA MERAH (Calliandra calothyrsus Meisn.) I: PERKECAMBAHAN BIJI DAN INISIASI TUNAS DARI EKSPLAN HIPOKOTIL DAN NODUS Idris, Muhammad; Asman, Auzia; Sorel, Deni; Joniarti, Edi; Mohtar, Ulfa; Harmailis, Harmailis; Nefri, John; Salivia, Salivia
Bio-Lectura : Jurnal Pendidikan Biologi Vol. 11 No. 1 (2024)
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/bl.v11i1.16877

Abstract

The red calliandra is a fuel wood crops that gave benefit for people. Recently, it is getting wide attention due to its important use as biofuel in industrial scale. The massive propagation is needed to meet industrial needs. Beside the use of conventional seedling production technique, the use of tissue culture for mass propagation is one of the alternatives to address this problem. This research was conducted to develop standard protocol for micropropagation of red calliandra through tissue culture. Here, the first step for that purpose was reported. The MS medium was used for basal media treatment. The seed source was stored for eight months under 5oC. This research was carried out in two stages i.e. 1) seed germination test and 2) shoot initiation and multiplication treatment. Each stage was arranged in experimental method. The result showed that seed were pre-treated with warm water (40oC) gave 62.5% germination under red light when compared to control (37.5%, pre-treated with water at 25oC under white light) three days after planting. Conversely, there is no striking differences of germinated seed percentages between light treatment at 25oC. Furthermore, it was found that addition of 2 mg/L BAP gave better result in shoot initiation and number of shoots formed from nodal explants after four weeks in treatment media. These results indicated that mass propagation of red calliandra can be done through tissue culture where multiplication stage is one of the important steps to produce multiple shoots only from single nodal explant.
ANALISIS FAKTOR PRODUKSI KOPI DI KECAMATAN PANTAI CERMIN KABUPATEN SOLOK Fitri, Elva Rahmi; Erlinda, Rita; Sorel, Deni
JURNAL AGRIMANSION Vol 26 No 1 (2025): Jurnal Agrimansion April 2025
Publisher : Jurusan Sosial Ekonomi Pertanian Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agrimansion.v26i1.1817

Abstract

This study aims to analyze the influence of production factors on coffee farm outputs in Pantai Cermin District, Solok Regency. The analytical method employed is a multiple linear regression approach. The independent variables analyzed include labor, land area, and fertilizer usage. The results show that labor has an elasticity of 0.606, indicating that a 1% increase in labor will increase production by 0.606%. Land area has an elasticity of 0.79, meaning a 1% increase in land area will result in approximately a 0.79% increase in production. Meanwhile, fertilizer has a very low elasticity of 0.013, suggesting that changes in fertilizer usage have an insignificant effect on coffee yield. The coefficient of determination (R²) of 0.85 indicates that 85% of the variation in coffee production can be explained jointly by these three variables. These findings suggest that increasing coffee production can be more effectively achieved by optimizing labor utilization and expanding cultivated land. This study provides valuable insights for farmers and stakeholders in formulating strategies to enhance the productivity and efficiency of coffee farming.
Propagasi In Vitro Kaliandra Merah (Calliandra calothyrsus Meisn.) II: Induksi Perakaran Tunas dan Aklimatisasi Planlet Idris, Muhammad; Asman, Auzia; Sorel, Deni; Joniarti, Edi; Mohtar, Ulfa; Harmailis, Harmailis; Nefri, John; Salvia, Salvia
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.10341

Abstract

Red calliandra is one of woody plants that has been extensively developed as biofuel. Tissue culture techniques are employed to produce a large and uniform quantity of seedlings in a relatively short period. Previous stages of in vitro initiation and multiplication of shoot from calliandra explants have shown promising results. The shoots that were multiplied by in vitro technique need to be induced for rooting process to produce plantlets. These plantlets are then prepared for the subsequent acclimatization process. This research was conducted in two stages; root induction of shoots using a modification of MS half-strength media (MS ½) supplemented with 1-4 mg/L 1-naphthaleneacetic acid (NAA), and acclimatization of the plantlets into soil media. The results shown that MS ½ medium and media supplemented with 1 mg/L NAA were suitable for root induction, particularly to induce the root length. Furthermore, MS ½ media supplemented with 1-2 mg/L NAA stimulates the increment of plantlet height and leaves numbers. Plantlets which were transferred into soil exhibit robust growth during 3-weeks of acclimatization process, up to 100% plantlets survived during this stage. These results underscore the potential of tissue culture techniques in providing large scale calliandra seedlings production for future biofuel development.
ANALISIS FARMER’S SHARE DAN EFISIENSI PEMASARAN KOMODITAS KOPI DI KECAMATAN PANTAI CERMIN KABUPATEN SOLOK Fitri, Elva Rahmi; Erlinda, Rita; Sorel, Deni
Jurnal Imiah Management Agribisnis (Jimanggis) Vol. 5 No. 2 (2024): Jurnal Ilmiah Management Agribisnis (Jimanggis)
Publisher : Magister Agribisnis Program Pascasarjana Universitas Sjakhyakirti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48093/jimanggis.v5i2.266

Abstract

Penelitian ini bertujuan untuk menganalisis saluran pemasaran, margin pemasaran, farmer’s share, dan efisiensi pemasaran komoditas kopi di Kecamatan Pantai Cermin, Kabupaten Solok. Metode penelitian melibatkan 30 responden yang dipilih secara acak sederhana dengan pengumpulan data primer melalui wawancara dan observasi langsung serta data sekunder dari literatur terkait. Hasil penelitian menunjukkan bahwa saluran pemasaran kopi di Kecamatan Pantai Cermin masih sederhana, melibatkan petani, pedagang pengumpul, dan pedagang besar. Margin pemasaran tercatat sebesar Rp 12.000/kg dengan farmer’s share hanya 32%, menunjukkan ketimpangan distribusi keuntungan dalam rantai pasokan. Efisiensi pemasaran yang rendah (32%) mengindikasikan masih tingginya biaya tambahan dalam proses distribusi. Rendahnya efisiensi dipengaruhi oleh panjangnya rantai distribusi, rendahnya mutu kopi, dan posisi tawar petani yang lemah. Untuk meningkatkan efisiensi pemasaran dan kesejahteraan petani, disarankan penggunaan teknologi digital, perbaikan kualitas kopi, serta pengembangan kebijakan pemasaran yang mendukung. Penelitian ini menegaskan pentingnya perbaikan sistem pemasaran untuk menciptakan pembagian keuntungan yang lebih adil bagi petani kopi di wilayah ini.
Co-Authors Asman, Auzia Fitri, Elva Rahmi Harmailis, Harmailis Joniarti, Edi M. Idris Mohtar, Ulfa Muhammad Idris Nefri, John Rita Erlinda Salivia, Salivia Salvia Salvia