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INDONESIA
Jurnal Agroteknos
Published by Universitas Halu Oleo
ISSN : 20877706     EISSN : 25274074     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 9 Documents
 1 
Search results for , issue "Vol 3, No 3 (2013)" : 9 Documents clear
EFEKTIVITAS LIMBAH CAIR PERTANIAN SEBAGAI MEDIA PERBANYAKAN DAN FORMULASI Bacillus subtilis SEBAGAI AGENS HAYATI PATOGEN TANAMAN Andi Khaeruni; Asrianti Asrianti; Abdul Rahman
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i3.2323

Abstract

This study aimed to find the best medium for formulation and storage of B. subtilis. The study consisted of two phases: (1) Selection of agricultural wastes as a propagation medium for Bacillus subtilis, (2) test for the stability of Bacillus subtilis in material formulation and  its  inhibition  activity  against Rhizoctonia solani.  The  second  phase  was conducted based on completely randomized design, consisting of five treatments, namely: 100  %  medium  synthetic,  100%  coconut  water,  75%  coconut  water  +  25  %  synthetic medium, 50% coconut water + 50% synthetic medium and 25% coconut water + 75% synthetic medium. Each treatment was repeated three times, so that there were 15 experimental units. B. subtilis ST21e isolate was formulated in liquid medium according to treatment and kept in plastic container at room temperature for 8 weeks to count the number of colonies and inhibition activity every 2 weeks. The results showed that the agricultural wastes (coconut water, tofu water and molasses) can be used as a media for B. subtilis  ST21e  propogation  in  different  cell  growth  pattern.  B.  subtilis  propogation  in medium  coconut  water  +  10% TSB  had the  best growth pattern compared to the  other media. On the other hand, medium containing 25% coconut water + 75% synthetic medium was the best combination for storage medium of  B. subtilis ST21e. Key words: biological agents, Bacillus subtilis, agricultural waste
MEDIA ALTERNATIVE PERBANYAKAN IN-VITRO ANGGREK BULAN (Phalaenopsis amabilis) Kasutjianingati Kasutjianingati; Rudi Irawan
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i3.2328

Abstract

The aim of this research was to study the effects of alternative medium composition on micropropagation of Phalaenopsis amabilis.   The species   is one of the most important “queen   of   flower“commodities   in      Indonesia   and   it   can   increase   domestic   incomes. Completely randomized design was used for the experiment. The experiment used a single factor, multiplication media, consisted of 6 different compositions, i.e. VW + BAP 2 ppm, VW+ coconut water 150 ml/L, VW + Ambon banana extract 50 gt/L,  POY + BAP 2 ppm,  POY+ coconut water 150 ml/L, POY + Ambon banana extract 50 gt/L . Parameters observed were the number of shoots, leaves and roots.  The results showed that addition of coconut water, banana extract, and BAP on media VW (Vacin and Went) or POY (liquid organic fertilizer Yoga) were not significantly different.  Shoot number obtained was as many as 2 shoots. Key words:  coconut water , banana extract, liquid organic fertilizer, Phalaenopsis
PERAKITAN PUPUK ALAM BERBASIS SUMBERDAYA LOKAL UNTUK MENINGKATKAN EFISIENSI PEMUPUKAN P DAN K SERTA HASIL KEDELAI DI TANAH MASAM Muh. Tufaila; Syamsu Alam
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i3.2324

Abstract

The research aimed to formulate a natural fertilizer based on local resources to improve the efficiency of fertilizer P and K and yield of soybean in acid soils of Southeast Sulawesi. The research involved natural fertilizer formulations with mica schist rock materials, harzburgite, and rock phosphate, and further testing of fertilizers. Laboratory fertilizer testing was performed by experimental methods to determine the slow release properties and the amelioration capabilities of fertilizer. Fertilizer treatments were fertilizer of mica schist and rock phosphate without coating harzburgite (L0), semifagit fertilizer with coatings harzburgite 1 time (L1), semifagit fertilizer with coatings harzburgite 2 times (L2), and semifagit fertilizer with coatings harzburgite 3 times (L3). Further testing was fertilizers test on acid soils, soybean yield and fertilizer efficiency with experimental methods. The treatments were fertilizer factors consisting of two levels: fertilizer of mica schist and rock phosphate without harsburgit coatings and semifagit coated fertilizers best harzburgite on experiments in the laboratory, and fertilizer factor of five levels: 0%, 40%, 60%, 80%, 100% P2O5 kg.ha-1 of the recommended dosage (100 kg.ha-1). The research concluded that the natural fertilizer was slow release, use of harsburgit as the outer layer of fertilizer increased fertility of acid soils, fertilizers of mica schist and rock phosphate with coatings harsburgit 3 time (L3) was the best to amelioration of acid soil, the higher dose of fertilizer was followed by the higher the pH, total N, available P, exchangeable K, Mg, and CEC and the lower content of Al-dd soil; the use of semifagit fertilizer dose of 80% of the recommendated dose (100 kg P2O5.ha-1) gave a better effect on plant height, wet weight, dry weight, number of pods, weight of 10 seeds and soybean yield per hectare (2.74 ton.ha-1). The higher the dose of fertilizer was followed by the higher uptake of P and K, and the highest efficiency of fertilizer P and K was at 19.32% and 15.26% for fertilizer using semifagit with a dose of 80% of the recommended dose (100 kg P2O5.ha-1).
PENGARUH PEMBERIAN BERBAGAI DOSIS GLIOKOMPOS TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN CABAI MERAH (Capsicum annuum L.) La Ode Safuan; Tresjia C. Rakian; Endi Kardiansa
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i3.2320

Abstract

The aim of the research was to study the effect of several glyochompost's dosages on the  growth  and  production of chilli.    The research was carried out in  Lamomea  Village, District Konda, Konawe, Southeast Sulawesi, from December 2012 to February 2013. This research was arranged on  completely randomized block design consisted of 4 treatments, i.e : without glyochompost (Go), glyochompost 30 g (G1), glyochompost 40 g (G2) and glyochompost 50 g (G3) per 20 kg soils. Analysis of variance (ANOVA) was used for statistical data analysis. Duncan's Multiple Range Test (DMRT) was applied to determine the significantly diferent among treatment with   95%   convidence level. The results of the research showed that : (1) glyochompost effectively influenced the plant hight, total productive branch, total numbers and chilli’s weight, (2) Applications of glyochompost 50 gr per 20 kg soils have given the best influence on growth and production of chilli plants. Key words: chilli, growth, glyochompost, plants, production
HUBUNGAN KEKERABATAN AKSESI PISANG KEPOK (Musa paradisiaca Formatypica) DI KABUPATEN MUNA BERDASARKAN KARAKTER MORFOLOGI DAN PENANDA RAPD Teguh Wijayanto; Dirvamena Boer; La Ente
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i3.2325

Abstract

Twenty-four accessions that belong to four groups of kepok banana in Muna Regency have   been   analyzed   for   their   genetic   diversity   based   on   morphological   characters (qualitative and quantitative characters), and a few accessions based on RAPD markers. This study aimed to determine the genetic diversity and phylogenetic relationship of accessions of kepok bananas based on 52 qualitative and 12 quantitative morphological characteristics and DNA characteristics.   Results of clustering analysis showed the euclidian values ranged between 0.50 to 1.00 for the qualitative data, 0.01 to 0.50 for quantitative data, and 0.83 to 0.88  for  DNA  profile  data.  Combined  qualitative  and  quantitative  data  had  similarity coefficient ranged from 0.00 to 2.50.  Dendogram of each character produced 2 main groups. The main group 1  formed subgroups. Although the qualitative and quantitative characters resulted in different accession   groupings, the combined data analysis of quantitative and qualitative  data  showed  that kepok  banana  in  Muna  regency  was  classified into    4  sub groups namely banana Manuru, Bugisi, Jiwaka and Manuru Lakabu. Keywords:   cluster   analysis,   kepok   banana,   qualitative   and   quantitative   characters, morphology, RAPD markers.
PENGARUH FUNGI MIKORIZA ARBUSKULA DAN NUTRISI ORGANIK TERHADAP PERTUMBUHAN TANAMAN CABAI MERAH BESAR (Capsicum annuum L.) Makmur Jaya Arma; Risnawati Risnawati; HS Gusnawaty
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i3.2321

Abstract

The research to study the effects of arbuscular mycorrhiza fungi (AMF) and organic nutrients to enhance the growth of chili has been conducted in Experimental Field, Faculty of Animal Husbandry and laboratory of Agrotechnology, Halu Oleo University, from June to November 2012.  The research was based on the split-plot design with a randomized  block design pattern (RAK) of two factors: Organic Nutrition as the main plot and AMF as subplot. Organic nutrients as the main plot consisted of three levels, namely: without organic nutrition (S0), 1 mL L-1  of water (S1) and 2 mL L -1  of water (S2);   and AMF dose as subplot consisted of three levels, namely: without AMF (M0), 5 g plant-1  (M1) and 10 g plant-1  (M2). therefore, there were 9 combinations of treatments and each treatment combination was repeated  three  times  to  obtain  27  experimental  units.  Each  variable  was  analyzed  by analysis of variance, then followed by Duncan's Multiple Range Test (UJBD) at 95% confidence level. The results of research indicated that the best interaction of   AMF   and organic  nutrient  treatment was 10 g AMF plant-1 (M2) and 2 mL L-1 (S2) of organic nutrients. This treatment combination can improve growth on variables: leaf area, leaf area index and yield index of the chili plants.  The best treatment for AMF independently was at 10 g plant-1 (M2) because it can promoted growth of plant height of the chili plants. The best treatment for organic matter independently was at 2 mL L-1(S2), because it can promoted growth of plant height of the chili plants. Keywords: FMA, organic nutrition, growth, chili
STUDI PENGARUH SUHU DAN INTENSITAS RADIASI MATAHARI TERHADAP PERKEMBANGAN PENYAKIT PATIK PADA TEMBAKAU Ahmad Rafiqi Tantawi; Bambang Hadisutrisno; Haryono Semangun; I Hartana; Lisnawita Lisnawita
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i3.2326

Abstract

The Study on Contribution of Temperature and Solar Radiation Intensity to Frogeye Disease Development on Tobacco. Tobacco is an important plant in Indonesia, due to its contribution to Indonesian economic and employment opportunity. One of the limiting factors in tobacco production is frogeye leaf spot, a fungal disease caused by  Cercospora nicotianae Ell. et Ev. Epidemic of this disease was supposed to have a close relationship with weather aspects, such as wind velocity, temperature, solar radiation intensity and relative humidity.. The experiment carried out at Mycology Laboratory, Study Program of Plant Pest and Disease, Faculty of Agriculture, UGM and two tobacco plantations in Jember a nd Klaten to study contribution of temperature and solar radiation intensity to frogeye disease development on tobacco. The results showed that frogeye disease development was support by weather elements. i.e. temperature, but solar radiation intensity is not important factor to disease development. Key words: tobacco, temperature, solar radiation intensity, frogeye disease development
UJI POTENSI TRICHODERMA INDIGENOUS SULAWESI TENGGARA SEBAGAI BIOFUNGISIDA TERHADAP Phytophthora capsici SECARA IN-VITRO HS Gusnawaty; Asniah Asniah; Muhammad Taufik; Faulika Faulika
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i3.2322

Abstract

This research was conducted in the Laboratory of Plant Pest and Disease, Department of Agrotecnologi, Faculty of Agriculture, Halu Oleo University Kendari, from May to August 2013. This study aimed to evaluate potential Trichoderma isolates indigeneous Southeast Sulawesi as biofungicide against Phytophthora capsici and Fusarium oxysporum in-vitro. The potential inhibitory test used multiple testing methods on PDA medium. The research design was a completely randomized design (CRD) consisting of 11 treatments (trichoderma isolates) with three replications. Variables measured were the inhibition of trichoderm a indigeneous on the growth of P. capsici and F. oxysporum. Results of the experiment showed that the  trichoderma isolates were potential as biofungicide of P. capsici and F. oxysporum because they were able to inhibit the growth of pathogens in-vitro. All trichoderma isolates tested had the same potential as biofungicide against P. capsici, and isolate DKT, BPS, LKA, ASL, LTB, APS, DPA, LKO and DKP has the best potential as biofungicide against pathogenic F. oxysporum in-vitro. Keywords:   F.   oxysporum,   inhibitory,   indigenous   of   Southeast   Sulawesi,   P.   capsici, trichoderma
KARAKTERISASI BIOKIMIAWI RIZOBAKTERI ASAL GULMA BERDAUN LEBAR YANG BERPOTENSI SEBAGAI DELETERIOUS RHIZOBACTERIA Asniah Asniah; Tresjia C. Rakian; Sri Wangadi; HS Gusnawaty
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i3.2327

Abstract

The research aimed to know biochemical characters of rhizobacteria from broadleaf weed that are potential as deleterious rhizobacteria. The research was conducted at Agronomy Laboratory   of Agriculture Faculty   Halu Oleo University Kendari from January until March 2013. The results showed that   9 of 10 rhizobacteria isolates tested from broadleaf   weeds   rhizosphere   had   the   ability   to   solubilize   phosphate   with   different diameters. For nitrogen fixation ability, all isolates tested were potential but only isolates of ML-01 and KL-06 had high capability. All isolates had different ability to produce IAA, with isolates of   KL-06 produced higher concentration of   IAA (33,07 ppm) compared to other isolates. Isolates that had the ability to produce HCN  were isolates BL-07, with filter paper change from yellow to dark brown, and BL-08 and BL-03 light brown color changes indicated to that the production of  HCN  was increased. Result of research showed that some isolates tested had biochemical character as deleterious rhizobacteria by  the ability to solubilize phosphate, fix nitrogen, produce IAA and HCN. Keywords: biochemical characterization, rhizobacteria, broadleaf weeds, deleterious.

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