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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences JURNAL TEKNOLOGI LINGKUNGAN AGROTEKBIS Jurnal Kelautan Tropis AGROLAND: The Agricultural Sciences Journal Jurnal Agrotech Journal of Tropical Crop Science Jurnal Penelitian Kehutanan Wallacea AGROTEKBIS: Jurnal Ilmu Pertanian AGROLAND: The Agricultural Sciences Journal
Aiyen Tjoa
Program Studi Agroteknologi Fakultas Pertanian Universitas Tadulako, Palu
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science

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GROWTH OF SPINACH (AMARANTHUS TRICOLOR L.) UNDER VARIOUS APPLICATIONS OF NUTRIENT CONCENTRATIONS IN HYDROPONIC SYSTEM OF NUTRIENT FILM TECHNIQUE Sindy Sella Rukmi; Aiyen Aiyen; Abdul Rauf
AGROLAND: The Agricultural Sciences Journal Vol 4, No 2 (2017)
Publisher : Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.12 KB)

Abstract

The research aimed to discover the response of the growth of two spinach species on Nutrient Film Technique (NFT) hydroponic system and the concentration of the appropriate AB Mix solution on each species. The research was conducted in January to February 2016, at Green House, Faculty of Agriculture, Tadulako University by using Split Plot Design method. The main plot was red and green spinach, while the subplot was the concentration of AB Mix nutrient solution, namely 4 ml/L of water, 5 ml/L of water, 6 ml/L of water and 7 ml/L of water. The research findings reveal that AB Mix nutrient solution was generally very good to support the growth of spinach on NFT hydroponic. The green spinach had better response rather than the red one. There was no interaction between species and the concentration of nutrient solution. The good concentration of nutrient solution for green spinach is 6 ml/L. It was showed by the better growth of plant height on all age of plant, the more number of leaves, the canopy and the root (wet and dry) were heavier, while on the red spinach, 5 ml/L of concentration of nutrient solution resulted in the best growth, yet it was not significantly different from other concentration except on the parameter of plant height and the dry weight of plant canopy.
GROWTH AND YIELD OF ONION (Allium ascalonicum L.) AGAINST VARIOUS CONCENTRATIONS OF LIQUID ORGANIC FERTILIZER Sri Lestari Galagi; Aiyen Aiyen; Muhammad Anshar Pasigai
AGROLAND: The Agricultural Sciences Journal Vol 4, No 1 (2017)
Publisher : Tadulako University

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Abstract

Onion (Allium ascolanicum L.) is not only popular as cooking spices in Indonesia but also throughout the world. Onion that has high economic value, has its own attraction to be cultivated by farmers. However, farmers often face some problems in onion farming. Problems were faced by farmers related to social economic conditions both internal, external and natural conditions. Fertilizer application for onion can use inorganic and organic fertilizer materials. The use of inorganic fertilizers without the addition of organic fertilizers over a long period of time, suspected to cause a decrease in soil physical and chemical capabilities, with the application of solid and liquid organic fertilizer is predicted to be more effective because the elements are more than one element. The use of fertilizers and organic matter through soil is often inefficient because of the fixation by soil particles. Liquid fertilizers administered overcome gapnutrients during growth. Herbafarm liquid organic fertilizer is a type of liquid fertilizer released by PT. Sidomuncul herbafarm which contains bio protectant, processed from by products of medicinal products made from raw medicinal plants and spices. Herbafarm contains macro and micro nutrients and also organic compounds that are essential for the growth and development of plants. This research was conducted in Sidera village, Biromaru sub-district, Sigi regency, Central Sulawesi Province. This study used a Randomized Block Design consisting of 5 treatment levels: P0 = control, P1 = 1 ml/liter of water, P2 = 2 ml/Liter of water, P3 = 3 ml/liter of water, and P4 = 4 ml/liter of water. All treatments were repeated 4 (four) times, so that there were 5 treatments each time 4 replicates = 20 experimental units. The results of this research were the best herbafarm POC on the treatment of     4 ml/liter of water that was on the parameters of plant height of  33,56 cm, leaves number  as much as 30. 63 blades, total dry weight of crop 9.99 g, number of tubers per family of 8.13 fruit, tuber diameter  of 20.26 mm, tuber length of  34.55 mm, fresh tuber weight per family of 32.57 g, tuber water content of 114.54 g and Weight of tuber per hectare 8.68 ton.ha-1.
Degradasi Karbohidrat pada Pakan Udang oleh Isolat Kapang Endofit Mangrove Sri Lintang Artono; Agus Trianto; Nur Taufiq Syamsudin Putra Jaya Taufiq Syamsudin Putra Jaya; Agus Sabdono; Subagiyo Subagiyo; Delianis Pringgenies; Rignolda Djamaludin; Aiyen Tjoa
Jurnal Kelautan Tropis Vol 26, No 1 (2023): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v26i1.17292

Abstract

Feed quality is a very important factor in shrimp farming because it will affect shrimp growth, water quality and even the emergence of pathogenic bacteria. High quality feed can be well digested by shrimp so that it can improve the growth and do not leave plenty of residue. Mold is capable of producing cellulase which can be used to improve feed quality by shortening carbohydrate chains. This paper will discuss the application of endophytic molds to simplify cellulose in shrimp feed. Mold isolates were collected from mangrove ecosystems in North Sulawesi. The media used for culturing mold are potato dextrose agar (PDA) and potato dextrose broth (PDB). Fermentation test was conducted using the fungal isolates; Hypocreales sp. and Diaporthe stewartii and consortia and controls. Fermentation results were checked by TLC and Fehling's test to determine the composition of the compounds and the presence of reducing sugar either mono or di-saccharide. Fermented shrimp feed shows differences in texture and color. Fermented feed extract with Hypocreales sp. 2.69 g (3.36%), Diaporthe stewartii 4.9 g (6.13%), and consortium 3.75 g (4.69%). TLC results neither under UV light nor visualization of vanillin sulfate did not show any differences of compounds in the control and the fermented feed. The results of the Fehling test showed that the mold was able to degrade cellulose that can be utilized to increase the shirmp feed quality.   Kualitas pakan merupakan faktor yang sangat berpengaruh dalam budidaya udang karena akan mempengaruhi pertyumbuhan udang, kualitas air bahkan timbulnya bakteri pathogen. Pakan yang baik mudah dicerna oleh udang sehingga dapat meningkatkan pertumbuhan secara maksimal dan tidak terlalu banyak meninggalkan residu. Kapang mampu memproduksi selulase yang dapat digunakan untuk meningkatkan kualitas pakan dengan memperpendek rantai karbohidrat. Tulisan ini akan membahas aplikasi kapang endofit untuk menyederhanakan selulosa pada pakan udang. Isolat kapang dikoleksi dari ekosistem mangrove di Sulaweri Utara. Media yang digunakan untuk mengkultur kapang adalah potato dextrose agar (PDA) dan potato dextrose broth (PDB). Uji fermentasi dengan kapang  Hypocreales sp. dan Diaporthe stewartii dan konsorsium serta kontrol. Hasil fermentasi dicek dengan TLC dan uji Fehling untuk mengetahui komposisi senyawa dan keberadaan mono-karbohidrat.  Pakan udang yang difermentasi menunjukkan perbedaan tekstur dan warna. Ekstrak pakan fermentasi dengan Hypocreales sp. sebesar 2,69 g (3,36%), Diaporthe stewartii sebesar 4,9 g (6,13%), dan konsorsium sebesar 3,75 g (4,69%). Hasil TLC dan visualisasi vanillin sulfat tidak menunjukkan perbedaan jenis senyawa pada pakan kontrol dan pakan terfermentasi. Hasil uji Fehling menunjukkan bahwa  kapang mampu mendegradasi selulosa yang dapat digunakan untuk meningkatkan kualitas pakan udang.
Molecular Identification and Biotechnological Potential of Cerithidea cingulata-and Lottia scabra Associated Fungi as Extracellular Enzyme Producer and Anti-Vibriosis Agent Agus Trianto; Ocky Karna Radjasa; Subagiyo Subagiyo; Armeilia Ardiva Isabella; Muhammad Syaifudien Bahry; Hartuti Purnaweni; Rignolda Djamaludin; Aiyen Tjoa; Ian Singleton; Darren Mark Evans; Karen Diele
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 28, No 2 (2023): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.28.2.136-147

Abstract

Mangroves are complex, unique, and dynamic ecosystems that host organisms that have special physiological adaptations to fluctuations in salinity, temperature, and pH. Gastropods have an important role in the mangrove ecosystem for food cycles and webs by helping to provide nutrients and micro-habitats for microbes.  Micro-fungi isolated from mangrove ecosystems are productive sources of enzymes and bioactive compounds such as antibacterial and antifungal. In this study a explored the enzymatic and anti-vibrio activity of fungi associated with the marine gastropod Cerithidea cingulata and Lottia scabra. collected in three mangrove forests in North Sulawesi, Indonesia.  The fungi associated with the specimens were inoculated on malt extract agar (MEA) using the tapping method. Enzymatic and anti-vibrio assays were conducted applying the plug method. Positive effects of the fungal compounds on Vibrio  were indicated by  clear zones formed around the isolates.  A total of 13 fungal species were isolated from C. cingulata (19MB-C5  and 19MBa-A4) and L. scabra (19MT-07 and 19MT-18).  Most fungal isolates have moderate growth rate. The isolate with highest cellulolytic, proteolytic, and anti-vibriosis activity (Vibrio parahaemolyticus, V. harveyi, V. vulnificus, and V. alginolyticus), derived from C. cingulata 19MB-C5 was closely related to Aspergillus niger, as revealed by molecular analysis using the universal primers ITS1 and ITS4 (similarity value 99%).  A. niger 19MB-C5-3 has potential as a bioremediation and anti-vibrio agent that can be applied in aquaculture.
Nickel acquisition affected by root density of mono- and mixed-cropping peanut and choy sum Aiyen Tjoa; Leisa Reclina Christi; Nur Edy; Zainuddin Basri; Henry Barus
Jurnal Penelitian Kehutanan Wallacea Vol. 12 No. 1 (2023)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (529.082 KB) | DOI: 10.24259/jpkwallacea.v12i1.26615

Abstract

Nickel (Ni) and associated minerals (Cr and Mn) are naturally occurring substances in ultramafic laterites soil. It may be found in our vegetables and grains when agriculture is grown in ultramafic laterites. This study aimed to assess the contamination of Ni in edible crops affected by soil volume in mono- and mixed cropping on limonitic laterite soil. The investigation was conducted on Peanut (Arachis hypogaea L.) and Choy Sum (Brassica rapa var. parachinensis) in three different pots sizes-representing soil volume to support root growth, which was filled with 0.5 kg (small), 1.0 kg (medium), and 1.5 kg (big) of limonitic laterite soil, respectively. The limonitic soil has a 7.884 mg kg-1 Ni concentration. The experiment shows that Ni concentration in peanut and Choy Sum shoots of mono-cropping in small, medium, and big pots achieve 20, 90, 120 mg kg-1 and 51, 67, and 95 mg kg-1, respectively. Meanwhile, in mixed cropping, Ni concentration in small, medium, and big pots of peanut and Choy Sum shoots are lower only by 33, 50, and 51 mg kg-1 and 15, 52, and 63 mg kg-1, respectively. Contamination of Ni in Peanut and Choy Sum shoots increases with the increasing soil volume, and mixed cropping is a potential strategy to reduce the acquisition of Ni.
Respon Varietas Tanaman Sawi (Brassica juncea L.) Terhadap Larutan Hara (Ab Mix) Pada Sistem Hidroponik Annisa Istiqamah; Abdul Rauf; Aiyen Aiyen
AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) Vol 4 No 4 (2016): Agustus
Publisher : Fakultas Pertanian, Universitas Tadulako

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Abstract

Penelitian ini bertujuan untuk mengetahui respon pertumbuhan dan produksi dua varietas tanaman sawi pada sistem hidroponik substrat dan konsentrasi larutan AB Mix sesuai pada masing-masing varietas. Penelitian dilaksanakan pada bulan Januari sampai dengan Maret 2016, di Green House, Fakultas Pertanian, Universitas Tadulako dengan menggunakan metode Rancangan Petak Terpisah. Petak utama tanaman sawi varietas Tosakan dan Shinta, sedangkan anak petak adalah konsentrasi larutan hara AB Mix yakni 4 ml/L air, 5 ml/L air, 6 ml/L air dan 7 ml/L air. Hasil penelitian menunjukkan bahwa Larutan hara AB Mix secara umum sangat baik untuk menunjang produksi sawi pada hidroponik substrat. Varietas Tosakan memiliki respon yang lebih baik dari varietas Shinta. Terjadi interaksi antara varietas dan konsentrasi larutan hara, konsentrasi larutan hara yang baik untuk varietas Tosakan adalah 6 ml/L, hal tersebut ditunjukkan oleh jumlah daun yang lebih banyak pada semua umur tanaman, daunnya yang lebih luas, tajuk dan akar (basah dan kering) lebih berat, sedangkan pada varietas Shinta konsentrasi larutan hara 4-7 ml/L menghasilkan produksi yang tidak berbeda nyata
Pertumbuhan Tanaman Bayam (Amaranthus tricolor L.) Dengan Pemberian Kosentrasi Nutrisi Berbeda Pada Sistem Nft (Nutrient Film Technique) Sindy Sella Rukmi; Aiyen Aiyen; Abdul Rauf
AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) Vol 5 No 2 (2017): April
Publisher : Fakultas Pertanian, Universitas Tadulako

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Abstract

Penelitian ini bertujuan untuk mengetahui respon pertumbuhan dua jenis tanaman bayam pada sistem hidroponik Nutrient Film Technique (NFT) dan konsentrasi larutan AB Mix yang sesuai pada masing-masing jenis. Penelitian dilaksanakan pada bulan Januari sampai dengan Februari 2016, di Green House, Fakultas Pertanian, Universitas Tadulako dengan menggunakan metode Rancangan Petak Terpisah. Petak utama tanaman bayam merah dan hijau, sedangkan anak petak adalah konsentrasi larutan hara AB Mix yakni 4 ml/L air, 5 ml/L air, 6 ml/L air dan 7 ml/L air. Hasil penelitian menunjukkan bahwa larutan hara AB Mix secara umum sangat baik untuk menunjang pertumbuhan bayam pada hidroponik NFT. Bayam hijau memiliki respon yang lebih baik dari bayam merah. Tidak terjadi interaksi antara jenis dan konsentrasi larutan hara. Konsentrasi larutan hara yang baik untuk bayam hijau adalah 6 ml/L, hal tersebut ditunjukkan oleh pertumbuhan tinggi tanaman yang lebih baik pada semua umur tanaman, jumlah daun yang lebih banyak, tajuk dan akar (basah dan kering) lebih berat, sedangkan pada bayam merah konsentrasi larutan hara 5 ml/L menghasilkan pertumbuhan paling baik namun tidak berbeda nyata dengan kosentrasi lainnya kecuali pada parameter tinggi tanaman dan berat kering tajuk tanaman.
RESPON PERTUMBUHAN TOMAT (Lycopersicum esculentum Mill). YANG DI BERI MIKROBA TANAH SECARA TUNGGAL DAN KOMBINASI Intan yana sakti; Aiyen Tjoa; Ramal Yusuf
AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) Vol 8 No 2 (2020): April
Publisher : Fakultas Pertanian, Universitas Tadulako

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Abstract

Mikroorganisme tanah banyak terdapat di daerah perakaran tanaman (Rizosfer). Pada masa kini, akibat dari pengolahan tanah yang berlanjut terus menerus menyebabkan tanah banyak mengalami kehilangan mikroorganisme. Mikroorganisme tanah terdiri dari jamur dan bakteri. Kehilangan ini disebabkan karena menurunnya kualitas tanah. Kualitas tanah dapat di tingkatkan melalui beberapa alternatif. Salah satunya yaitu dengan pengaplikasian bakteri dan jamur. Peningkatan kualitas tanah dapat terjadi jika mikroorganisme, tanaman dan lingkungan bisa berinteraksi dengan baik. Tanaman yang sehat bisa tercipta jika lingkungan tumbuh serta nutrisinya tercukupi dengan baik. Banyaknya produk hayati yang diciptakan melalui penelitian para peneliti. Bahwa salah satu sarana terbaik menghasilkan produksi tanaman yang maksimal yaitu melalui pemanfaatan perbanyakan mikroorganisme melalui tanaman. Dengan pennyesuaian lingkungan yang cocok dapat dilakukan penggandaan mikroorganisme ini. Contoh alternatif ini bisa memberikan manfaat konservasi tanah, peluang usaha dan penciptaan tenaga kerja serta dapat meningkatkan produksi tanaman yang dijadikan inang. Kualitas tanah yang hilang menyebabkan beberapa kerugian produksi yang muncul seperti gagal panen, tanaman kerdil, tanaman tidak Tahan serangan hama, mudah terserang penyakit, kerugian modal dan lain-lain.
POTENSI LIMBAH PADAT KELAPA SAWIT UNTUK PENINGKATAN PERTUMBUHAN DAN HASIL TANAMAN SORGUM (Sorghum bicolor L.) Oka Yusuf Bahtiar; Aiyen Tjoa; Usman Made
AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) Vol 9 No 2 (2021): April
Publisher : Fakultas Pertanian, Universitas Tadulako

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Abstract

Limbah padat kelapa sawit merupakan limbah yang dapat meningkatkan daya dukung tanah serta ketersedian bahan organik dan unsur hara untuk tanaman sorgum. Penelitian ini bertujuan untuk meningkatkan pertumbuhan dan hasil tanaman sorgum. Penelitian ini dilaksanakan di desa Taipa kecamatan Palu Utara dan analisis tanah, pupuk dan hasil dilaksanakan di laboratorium Ilmu Tanah Fakultas Pertanian Universitas Tadulako Palu. Dari bulan Mei hingga Juni 2017. Desain penelitian menggunakan rancangan acak kelompok dengan 7 perlakuan, yaitu P0 = Tanpa pemberian solid atau Limbah padat, P1 = Limbah Padat Kelapa Sawit 10 ton ha-1(Setara 16kg/bedeng), P2 = Limbah Padat Kelapa sawit 20 ton ha-1(Setara 32kg/bedeng), P3 = Limbah Padat Kelapa sawit 30 ton ha-1(Setara 48kg/bedeng), P4 = Limbah Padat Kelapa sawit 40 ton ha-1(Setara 64kg/bedeng), P5 = Limbah Padat Kelapa sawit 50 ton ha-1(Setara 80kg/bedeng), P6= Limbah Padat Kelapa Sawit 60 ton ha-1(Setara 96kg/bedeng). Hasil penelitian ini menunjukan bahwa Pemberian pupuk dari limbah sawit menunjukan pertumbuhan dan hasil sorgum mulai dari dosis 10 ton - 60 ton/ha Adapun dosis 20 ton, cukup optimal untuk meningkatkan pertumbuhan dan hasil sorgum .
PUPUK ORGANIK CAIR DAN PERTUMBUHAN BIBIT KELAPA SAWIT Imam Arwin; Aiyen Tjoa; Ichwan Madauna
AGROTEKBIS : JURNAL ILMU PERTANIAN (e-journal) Vol 10 No 3 (2022): Juni
Publisher : Fakultas Pertanian, Universitas Tadulako

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Abstract

Penelitian ini bertujuan untuk menguji pupuk organik cair dalam menunjang pertumbuhan bibit kelapa sawit. Penelitian ini dilaksanakan di Screen House Fakultas Pertanian, Universitas Tadulako, Palu Sulawesi Tengah pada bulan September sampai Desember 2020. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan 5 level perlakuan yaitu tanpa POC (Kontrol), POC 1 ml l-1 air, POC 2 ml l-1 air, POC 3 ml l-1 air, POC 4 ml l-1 air dan setiap perlakuan diulang sebanyak 4 kali sehingga total satuan penelitian adalah 20. Hasil penelitian menunjukkan bahwa pemberian pupuk organik cair mampu meningkatkan pertumbuhan bibit tanaman sawit yaitu tinggi tanaman, jumlah daun, diameter bonggol, volume akar, berat kering akar, dan cenderung meningkatkan berat kering tajuk. Konsentrasi POC 4 ml l-1 air memiliki efek tertinggi pada hampir semua parameter yang diukur.
Co-Authors Abd Hamid Noer Abdul Gani Akhmad Abdul Rauf Abdul Rauf Abdul Rauf ABDUL RAUF Ade Wachjar Agus Sabdono Agus Trianto Agus Trianto Andi Besse Poleuleng Andi Tanra Tellu Annisa Istiqamah Armeilia Ardiva Isabella Chotimah Fajar Ferawati Darren Mark Evans Delianis Pringgenies Desmariana Nainggolan Hartuti Purnaweni Henry Barus Henry N. Barus Herdhata Agusta Ian Singleton Ichwan Madauna Ichwan Madauna Imam Arwin Indrianto Kadeko Intan yana sakti Istiqamah, Annisa Johan Johan Karen Diele Leisa Reclina Christi Lisa Indriani Muhammad Anshar Pasiga Muhammad Anshar Pasigai Muhammad Basir Chio Muhammad Syaifudien Bahry Nur Ainun Nur Edy Nur Taufiq Syamsudin Putra Jaya Taufiq Syamsudin Putra Jaya Ocky Karna Radjasa Oka Yusuf Bahtiar Priyanto, Iklan Ramal Yusuf Rignolda Djamaludin Rignolda Djamaludin Saiful Darman Sakka Samudin Sindy Sella Rukmi Sindy Sella Rukmi Sindy Sella Rukmi Sri Lestari Galagi Sri Lestari Galagi Sri Lintang Artono Subagiyo Subagiyo Subagiyo Subagiyo Sudirman Yahya Thufailah Loulembah, Firyal Amirah Usman Made Wildani Pingkan S. Hamzens Zainuddin Basri