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Jurnal Agroteknos
Published by Universitas Halu Oleo
ISSN : 20877706     EISSN : 25274074     DOI : -
Core Subject : Agriculture,
Arjuna Subject : -
Articles 9 Documents
Search results for , issue "Vol 3, No 2 (2013)" : 9 Documents clear
OPTIMASI PRODUKSI HORMON, NITROGEN TOTAL DAN KEPADATAN SEL AZOTOBACTER PADA INOKULAN CAIR MELALUI PENAMBAHAN Fe DAN Mo Nana Danapriatna; Benny Hutagalung; Reginawati Hindersah
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i2.2318

Abstract

Production of liquid biofertilizer Azotobacter requires pure inoculum with N2 fixation capacity, hormone production, and optimal cell density.   This research was conducted to determine the effect of Fe-Mo microelement and Azotobacter inoculant concentration   on enhancement of hormones and total nitrogen content as well as  Azotobacter population in liquid culture. The experiment used Randomized Completely Design with six treatments and three replications. The treatments were combination of inoculant concentration (without, 5%, 10% and 15%) and  Fe-Mo solution (with and without Fe-Mo).  The result showed that addition of Fe and Mo microelements in liquid culture increased Cytokinin production as well as population density of Azotobacter.  Inoculant concentration of 10% with the addition of micronutrients  Fe  and  Mo  was  able  to  optimize  the  production  of hormones, nitrogen fixation, and cell density of Azotobacter. Keywords : Fe, Mo, Total Nitrogen, Hormone, Azotobacter
EVALUASI KETAHANAN KULTIVAR SORGUM TERHADAP PENYAKIT LAYU FUSARIUM Asniah Asniah; HS Gusnawaty; Muhammad Taufik
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i2.2314

Abstract

This study aimed to evaluate the resistance of sorghum cultivars to wilt fusarium. This research was arranged in a randomized block design, with six  treatments [brown  sorghum, white sorghum and  red  sorghum with no inoculation fusarium, brown    sorghum, white sorghum  and  red  sorghum with  inoculation  fusarium]  with  3  (three)  replications. Data observed were plant height, leaf number, leaf area, and heaviest of grain weight for vegetative observation, while for disease character was disease incidence. The results showed that none of sorghum cultivars evaluated showed resistance to wilt fusarium infection. The tolerant response to wilt fusarium  was observed on brown sorghum, whereas red and white sorghum were  susceptible to wilt fusarium. The heaviest of  grain weight was found in brown sorghum (27.86 g/penicle). The wilt fusarium caused disease incidences ranging from 33.33% (brown sorghum)  to 50% (red sorghum). Keywords: cultivars, disease incidence, fusarium, sorghum, resistance
KERAGAMAN MORFOLOGI UBI JALAR (Ipomoea batatas (L.) Lam.) ASAL KABUPATEN MUNA Warhamni Warhamni; Dirvamena Boer; Muzuni Muzuni
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i2.2319

Abstract

This research aimed to study the morphological diversity of sweet potatoes in Muna regency. The morphological observation was performed to analyze both quantitative and qualitative characteristics of sweet potatoes. The morphological data were then analysed. The qualitative characteristics were presented in binary data. The quantitative data were firstly standardized. Then, the genealogical relationship of qualitative characteristics was analyzed using the Match Matching of genetic distance, and the genealogical relationship of quantitative characteristics was analyzed using Euclidian genetic distance. The genealogical relationship was calculated through genetic distance, which informs the genetic differences between populations. The results of the analysis showed that sweet potatoes in Muna beared similarities, although their dissimilarity coefficient value was small. Keywords: Sweet potatoes, Morphological, Genealogical Relationship
ANALISIS PENGARUH SUHU DAN KELEMBAPAN TERHADAP PERKEMBANGAN PENYAKIT Tobacco mosaic virus PADA TANAMAN CABAI Muhammad Taufik; Sarawa Sarawa; Asmar Hasan; Kiki Amelia
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i2.2315

Abstract

Climate, particularly environmental temperature, plays an important role in diseases caused by plant viruses. This study investigated the role of environmental temperature and humidity on development of Tobacco mosaic virus (TMV) on pepper (Capsicum anuum L). The research was conducted by using regression analysis. The results showed that TMV infection in plants could inhibit the growth of chili peppers. The temperature influenced disease development of TMV for up to 56,6%, whereas the humidity did not influence TMV disease development. Keywords: temperature, humadity, TMV, disease development, pepper
PEMETAAN POTENSI DEPOSIT ORGANIK DAN BATUAN SEBAGAI BAHAN BAKU PUPUK ALAM DI KABUPATEN KONAWE Muh. Tufaila; Syamsu Alam
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i2.2311

Abstract

The research aimed to get nutrients or materials contained in each type of organic deposits  and  rocks;  obtain  the  type,  location  and  size  distribution, and  the  reserves of organic deposits and rocks that can be used as raw materials for natural fertilizer in to Konawe, and get a map of potential raw materials for natural fertilizer in  Konawe. The method used was a   survey method followed by chemical analysis of organic deposits and rocks in the laboratory. Data were analysed descriptively. The research results showed that the organic deposits in Konawe were peat and guano deposits. Peat deposits can be used as a source of organic matter while guano deposits as P fertilizer. Peat deposits were located in Lambuya District as many as 2,160,972 tons, while guano deposits were located in Soropia District, Amonggedo, and North Wawonii with the number of deposit of 1,213.16 tons. Rock deposits in Konawe which can be used as raw material for natural fertilizer ultramafic rocks, mica schists and limestones. Ultramafic rocks can be used as Mg fertilizer, mica schist rocks as K fertilizers, and limestones as lime or Ca fertilizer. Deposit ultramafic rocks located in Districts Routa, Lambuya, Pondidaha, West Wawonii, East Wawonii, Middle Wawonii, Southeast  Wawonii,  North  Wawonii,  South  Wawonii  and  Northeast  Wawonii  with  the number of deposit of 326.05 million tons. Mica schist rock deposits with located in Districts Routa, Latoma, Asinua, Abuki, Tongauna, Uepai, and Onembute with the number of deposit of 164.16 million tons. Limestone deposit was located in the Districts Routa, Soropia, East Wawonii, Northeast Wawonii and North Wawonii, with the deposit amount 333.04 million tons. Keywords: mapping, natural fertilizer raw materials, organic deposits and rocks
PEMANFAATAN TEKNOLOGI MOLECULAR BREEDING DALAM PEMULIAAN KETAHANAN TANAMAN TERHADAP HAMA DAN PENYAKIT Rudi Lukman; Ahmad Afifuddin; Hoerussalam Hoerussalam
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i2.2316

Abstract

Application of gene for gene hypothesis in breeding resistance to pests and disease should pay attention to genes and gene avirulen resistance of pathogens. The second aspect of  this  exploration  can  be  facilitated  by  molecular  breeding  technology.  In  addition, molecular marking can also be used to incorporate some resistance genes in an individual plant (gene pyramiding), a markup to the needs of cross-back (Marker Assisted Backcrossing), as well as experimental support for the detection of seed borne diseases. Rapid progress in the field of genomics has revealed some interesting phenomena about the genetics of microbes such as pathogenic effector, studies the genetic identity of an equality and diversity of microbial isolates that have not been explored. Better understanding of the mechanisms of pathogenicity and pathogen interaction between plants and will speed up the process of breeding for resistant plants. Keywords: Molecular Breeding, variability of pathogens, gene resistance
UJI EFEKTIVITAS BEBERAPA MEDIA UNTUK PERBANYAKAN AGENS HAYATI Gliocladium sp. HS Gusnawaty; Muhammad Taufik; Edi Wahyudin
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i2.2312

Abstract

This research was carried out in the Laboratory of Pests and Disease, Agricultural Faculty  of  Haluoleo  University,  from  October  to  December  2012.  This  research  was arranged   in   A   Completely   Randomized   Design   (CRD),   with   7   treatments,   namely: Gliocladium sp. in sago waste (a), Gliocladium sp. in cashew seed wastes (b), gliocladium sp. in saw dust waste (c), Gliocladium sp. in corn medium (d), Gliocladium sp. in bran medium (e),  Gliocladium  sp.  in rice  medium  (f) and  gliocladium sp.  in rice  husk  waste  (g).   The research results showed that media used had different effectiveness.   The most effective medium for Gliocladium sp. Propagation was rice bran medium, based on Gliocladium sp. growth (100%), and the number of Gliocladium sp. conidium ( 2,0 x105/g). Keywords: effectiveness, Gliocladium sp., medium, propagation
APLIKASI AGENS HAYATI Pseudomonas fluorescens P60 TERHADAP MUTU FISIOLOGIS BENIH DAN PERTUMBUHAN BIBIT PADI IR 64 Lisa Navitasari
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i2.2317

Abstract

The  research  aims  to  study  (1)  testing  P.  flourescens  P60  for  physiological  seed quality, and (2) testing P. flourescens P60 on the growth of seedlings in the greenhouse. The results indicated presence of physiological quality of seeds, treatment of P. flourescens P60 had the same effect with the treatment benomil and distilled water with no significantly different results, as well as the treatment of P. flourescens P60 was able to maintain the quality of physiological germination rate above 80%. Results of application P. flourescens P60 on the growth of rice seedlings in the greenhouse, treatment of P. flourescens P60 with immersion time 15 minutes and 25 minutes, had the same effect with distilled water and benomil in seedling height, root length, and dry weight of seedling, but different in wet weight of seedling and root dry weight. Keywords : Pseudomonas flourescens P60, seed physiological quality, growth of seedlings.
EVALUASI KESESUAIAN LAHAN TANAMAN KAKAO (Theobroma cacaoL.) BERDASARKAN ANALISIS DATA IKLIM MENGGUNAKAN APLIKASI SISTEM INFORMASI GEOGRAFI La Ode Safuan; Aminuddin Mane Kandari; Muhammad Natsir
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v3i2.2313

Abstract

The aims of the study were to determine the type of climate and the distribution and wide of   each class of climate suitability for cocoa crop in the district of Buton. This study was conducted in March   to August 2012 by using spline interpolation through the application of Geographic Information Systems (GIS) and ArcGIS 9.3 software and overlay method to get climatic units in the research are. The research found that climate type in the research area was climate type C (rather wet), subdistricts Batauga, Lasalimu, South Lasalimu, Siotapina and part region of including sub district Wolowa; and climate type D (medium) in the region of sub ditricts Kapontori, Wabula, Lapandewa and Sampolawa and part region sub district Wolowa, Lasalimu and Pasarwajo. Based on the results of evaluation of the suitability of the actual climate in the study area for the development of cocoa plants, there were nine (9 ) units of climatic suitability classes, namely S1, S2t, S2t, w1, S2w1, S3w1, S3w1, 3, S3w3, N1w3, and N2w1 with the area sizes of 91,16 ha or 0,08 %, 14.191,47 ha or 12,54 %, 10.726,04 ha or 9,47%, 2.245,34 ha or 1.98 %, 19.324,25 ha or 17,07 %, 17,80 ha or 0,02 %, 7.908,03 ha or 6,99 %, 29.017,40 ha or 25,63 % and 29.692,10 ha or 26,23 %. On the other hand, the potential climatic suitability classes were seven (7) units, namely S1, S2t, S2w1, S3w3, N1w1,3, N1w1 and N1w3 with each area size of 2.336,50 ha or 2,06%, 24.917,51 ha or 22,01%, 17,80 ha or 0,02%, 27.232,28 ha or 24,05%, 4.068,60 ha or 3,59%, 25.623,49 ha or 22,63% and 29.017,40 ha or 25,63% respectively, of the total evaluated area, with the limiting factors  of  temperature, climate, the  number of  dry  months  and  moisture.  This research showed that there are areas that can be developed for cocoa crop in the study area based on climate suitability. Keywords: climate, cocoa, land suitability

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