Abraham Talahaturuson
Fakultas Pertanian Universitas Pattimura, Ambon

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Aplikasi agens hayati dari perakaran bamboo dan rumput gajah untuk mengendalikan penyakit hawar daun dan peningkatan hasil tanaman pada sawi (Brassica rapa) A. Marthin Kalay; Adelina Siregar; Alexander Sesa; Abraham Talahaturuson
Jurnal Agro Vol 7, No 1 (2020)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/6548

Abstract

Penyakit Damping Off dan hawar daun merupakan penyakit yang sering ditemukan pada tanaman sawi (Brassica rapa) dan tanaman hortikultura sayuran lainnya. Kedua penyakit ini disebabkan oleh jamur Rizoctonia solani. Penggunaan bahan alam berbasis agens hayati mikroba merupakan solusi penanganan penyakit tanaman yang ramah lingkungan dan berkelanjutan, selain untuk pengendalian penyakit juga berpotensi meningkatkan hasil tanaman. Penelitian ini bertujuan untuk mengetahui efek aplikasi agens hayati dari perakaran bambu dan rumput gajah terhadap serangan penyakit hawar daun dan hasil tanaman sawi. Perlakuan yang dicobakan adalah agens hayati dari ekstrak akar bambu (EAB) dan akar rumput gajah (EARG), dan pupuk hayati konsorsium (PHK) dengan konsentrasi : PHK 1% , EAB 1%, EAB 1,5% , EAB 2%, EARG 1% , EARG 1,5%, EARG 2%, dan tanpa agens hayati sebagai kontrol. Percobaan dirancang menggunakan rancangan acak kelompok dengan tiga ulangan. Hasil penelitian adalah pemberian agens hayati dari EAB, EARG dan PHK dapat mengendalikan penyakit hawar daun, dan meningkatkan tinggi tanaman, bobot segar tanaman dan bobot kering tanaman. Agens hayati dengan konsentrasi terbaik adalah PHK 1%, EAB 2% dan EARG 2%. Hasil penelitian yang terbaik dapat direkomendasikan kepada petani untuk meningkatkan produksi tanaman sawi. ABSTRACT Damping off and leaf blight diseases are often found in mustard (Brassica rapa) and other vegetable horticultural crops. Both diseases are caused by a fungal pathogen Rizoctonia solani. The use of natural materials based on biological agents is a sustainable environmentally friendly solutions, besides controlling crop diseases, it also has the potential to increase crop yields. This study aims to determine the effect of application of biological agents from bamboo roots and elephant grass on leaf blight and mustard. The treatments involved biological agents extracted from bamboo roots (EAB) and elephant grass roots (EARG), and consortium bio-fertilizers (PHK) with concentrations of 1% layoff, EAB 1%, EAB 1.5%, EAB 2%, EARG 1%, EARG 1.5%, EARG 2%, and without biological agents as a control.  The experimental design was a randomized block design with three replications. The results of the study showed that the the application of biological agents from bamboo roots (EAB), elephant grass roots (EARG) and consortium bio-fertilizers (PHK) can control the leaf blight disease, and can increase the plant height, and the fresh and plant dry weight. The best concentration of biological agents is PHK 1%, EAB 2% and EARG 2%. The best results of this study can be recommended to farmers to increase the production of mustard plants. 
Optimalisasi Produktivitas Tanaman Pala (Myristica Fragrans Houtt) Melalui Aplikasi Nutrisi Tanaman Organik-Anorganik Cair Zakarias Frans Mores Hukom; Pieter J Kunu; Abraham Talahaturuson; Jollanda Effendy; Gun Mardiatmoko
JURNAL PERTANIAN KEPULAUAN Vol 7 No 1 (2023): Jurnal Pertanian Kepulauan
Publisher : Fakultas Pertanian, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jpk.2023.7.1.45

Abstract

The objective of this study was to optimize the productivity of nutmeg (Myristica fragrans Houtt) through the application of concentration levels and frequency of liquid organic-inorganic mixed plant nutrition was carried out in the Nutmeg Garden of Hative Besar Village, Ambon Island, using a factorial complete randomized block design 3 x 2 + 1 (control, without treatment). The first factor consisted of three concentration levels, namely 1500 ppm, 3000 ppm, and 4500 ppm. The second factor consisted of two application frequencies: every two weeks and every four weeks. The sample employed in this study had an average age of 25 years. Each treatment combination was repeated three times with the total sampled 21 trees. The following yield parameter components were observed in this study: number of harvested fruits, fresh fruit weight, wet seed weight, dry seed weight, and dry mace weight. The results showed an interaction between the combination treatment of liquid organic-inorganic mixed plant nutrient concentrations and the frequency of application to the variables of fresh fruit weight, wet seed weight, dry seed weight, and dry mace weight. The variable number of fruits harvested per plant did not show an interaction effect between the concentration level and the frequency of giving liquid organic-inorganic mixed plant nutrition. Still, the best average number of fruits harvested per plant was found in the combination treatment between a concentration of 3000 ppm and a frequency of application every two weeks. The application of liquid organic-inorganic mixed plant nutrition with a concentration of 3000 ppm with a frequency of application every two weeks showed a positive response to increasing plant productivity when compared to other treatments or without the application of plant nutrients.
Biopriming Dengan Agens Hayati Pada Benih Padi Terkontaminasi Fitopatogen Drechslera oryzae Kalay, A. Marthin; Patty, Jogeneis; Talahaturuson, Abraham; Marasabessy, Deasy
Jurnal Agroekoteknologi Vol 15, No 2 (2023)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v15i2.22453

Abstract

Fungi Dreschslera oryzae or Helminthosporium oryzae often found in rice seeds and causes brown spot disease (brown spot disease). Symptoms of attack can be seen in nurseries and on mature plants. The aim of the research is to determine the effect of a consortium of biological control agents and secondary metabolites Trichoderma harzianum which is used as biopriming on rice seeds contaminated with D. oryzae. The treatment tried was without biological control agents as a control, consortium T. harzianum and A. chrococcum, consortia of three isolates Bacillus sp, consortium A. chrococcum, A. vinelandi, Azospirillum sp, Pseudomaonas cepacia, Penicillium sp, Acinetobacter sp, and secondary metabolites T. harzianum, designed using a Completely Randomized Design with five replications. The experiment used two methods, namely germinating rice seeds on gauze media and on soil media. The research results found that biopriming with the biological control agents and secondary metabolites T. harzianum on rice seeds, it has the effect of increasing shoot height, shoot fresh weight, seedling fresh weight, root length, and reducing disease intensity. In general, the use of the biological control agents and secondary metabolites T. harzianum has the same effect. The presence of chitinase enzymes and siderophore compounds in biological control agents and secondary metabolites T. harzianum has an effect on reducing disease intensity, while the hormones auxin and gibberellin have an effect on increasing shoot height, shoot fresh weight, seedling fresh weight and root length.