Garuda - Garba Rujukan Digital

ISOLASI Bacillus thuringiensis BERL. DARI TANAH DAN PATOGENISITASNYA TERHADAP LARVA Crocidolomia binotalis ZELL. PADA TANAMAN SAWI (Brassica juncea L.) Khaeruni, Andi; Rahayu, M; Purnamaningrum, Nenden Teja
Jurnal Agroteknos Vol 2, No 1 (2012)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

The aim of this research was to know the pathogenicity of B. thuringiensis against larvae of C. binotalis Zell on Caisin Plant. The B. thuringiensis isolates were isolated using serial dilution technique, from soil samples that were taken from some locations in Southeast Sulawesi. Pathogenicity test on larvae III of C. binotalis was done using bioassay method. Mortality value was used to know the virulence level of B. thuringiensis at 7 days after application. The result showed that there were 37 soil samples containing B. thuringiensis and the number of B. thuringiensis isolates were 65. isolates KU-ST7, MN-ST4, KNW-ST8, KLK- ST5,KLK-ST4 and KU-ST4 had the highest pathogenicity and virulence levels, because they had the highest efffect on C. binotalis larvae mortalities, i.e: 100%, with LT50 value of 2-4 days after application. Key word : Bacillus thuringiensis Berl., bioassay test. Crocidolomia binotalis Zell.,

MIKROPROPAGASI PISANG MAS KIRANA (Musa acuminata L) MEMANFAATKAN BAP DAN NAA SECARA IN-VITRO Kasutjianingati, Kasutjianingati; Boer, Dirvamena
Jurnal Agroteknos Vol 3, No 1 (2013)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

The aim of this research was to study the effects of cytokinine and auxin (BAP and NAA) on micropropagation of banana cv Mas Kirana (AA). The experiment used completely randomized design, with a single factor of multiplication media, consisted of 4 media i.e. MS + BAP 4 ppm, MS + BA 6 ppm, MS + BAP 4 ppm + NAA 0,1 ppm, MS + BA 6 ppm + 0.1 ppm. The experiment treatment of BAP 4 ppm produced the highest shoot number (100% small bud). The best shoot of Mas Kirana morphogenesis produced when the shoots sub-cultured in media MS0. The treatment 4 ppm BAP after sub-cultured at MS0 produced big plantlet ready to acclimatization for up to 43% (9 plantlets). Key words: BAP, NAA, morphogenesis, big plantlet

PERKEMBANGAN TANAH DARI LAPUKAN BATUAN ULTRABASA PADA DUA TOPOSEKUEN DI SULAWESI TENGGARA Sunarminto, Bambang Hendro; Siradz, Syamsul Arifin
Jurnal Agroteknos Vol 1, No 3 (2011)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

The study of soil development of weathering ultramafic rocks have been performed on several toposequence in Sulawesi Tenggara in Puriala Subdistrict of Konawe District and in Lasusua Subdistrict of Kolaka District from December 2010 until Juni 2011. The results showed that soils developed from ultramafic rocks weathering low rainfall (torric) in Puriala have a more coarse texture (LS, SL, L, SiL, CL, C), impervious container which was more shallow (20-90 cm), land of color tend to be brown (7.5 YR), pH 6.8 to 7.6, C-organic 0.57 to 0.93%, CEC 26.20 to 69.61 cmol(+)kg-1, the number of base 11.90 to 15.86 cmol(+)kg1, Fe-d 3.79 to 16.12%, Al-d 0.14 to 1.65%, smectite clay minerals, sand mineral feldspar hematite compared soils developed from ultramafic rocks weathering high rainfall (udic) in Lasusua color tends to be more red (2.5 YR), with a finer texture (SiCL, C) and impervious container deeper (70 -> 150 cm), pH 6.1 to 7.0, C-organic 1.20 to 1.86%, CEC 11.29 to 31.60 cmol(+)kg-1, the number of bases 2.72 to 13.33 cmol(+)kg-1, Fe-d 21.62 to 27.04%, Al-d 0.87 to 3.58%, gutit smectite clay minerals, sand mineral feldspar-magnetite-hematite. Soil weathering from ultramafic rocks with high rainfall experienced base cations leaching was higher mainly characterized by high mobility of cations with CEC and a lower base amount, and the accumulation of low mobility of cations is characterized by high Fe-d and Al-d. Level of soil development began from P2 (Entisol), P1 (Vertisol), L2 (Inceptisol), P3 (Inceptisol), L1 (Alfisol) and the last L3 (Oxisol) the most advanced of soil is on the middle slope, the next is soil on summit, and the last is soil on toeslopes

PERTUMBUHAN DAN PRODUKSI JAGUNG (Zea mays L. ) DAN KACANG TANAH (Arachis hypogaea L.) MELALUI PEMBERIAN NUTRISI ORGANIK DAN WAKTU TANAM DALAM SISTEM TUMPANGSARI Arma, Makmur Jaya; Fermin, Uli; Sabaruddin, Laode
Jurnal Agroteknos Vol 3, No 1 (2013)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

The aims of this research were to understand the effects of organic nutrients and planting time in intercropping system on growth and yield the maize (Zea mays L.) and peanut (Arachis hypogaea L.). The research was conducted at Experimental Farm and Laboratory of the Faculty of Agriculture, University of Haluoleo Kendari, on July to October 2012. The experiment was arranged in Completely Randomized Block Design (CRBD) in a the split plot design, which consisted of dosage of organic nutrients (S) as main plot, with three levels, S0 without organic nutrients, S1 dose 1 mL L-1 water of organic nutrients and S2 dose 2 mL L-1 water of organic nutrients. Planting time (W) as sub plot, consisted of three levels, W0 = planting time of peanut together with maize, W1= planting time of peanut 10 day before maize and W2 = planting time of peanut 10 day after maize. Combination of treatment was repeated three times. Data obtained were analyzed using analysis of variance and followed by Duncan’s Multiple Range Test. The results showed that the highest maize productivity was 7.31 ton ha-1 and peanuts 2.21 ton ha-1 obtained of the treatment of growth hormone dose of 1 mL L-1 and peanut cultivation 10 day before maize. Treatment of 1 mL L-1 water of organic nutrients and planting time of peanut 10 day before maize can improve growth and yield of maize and peanut crops and thus can be a recommendation in intercropping systems on maize and peanut. Keywords: maize, peanut, growth hormone, planting time in intercropping system

PENGARUH MIKORIZA INDIGENOUS GULMA TERHADAP KERAPATAN GULMA PADA TANAMAN JAGUNG Halim, Halim
Jurnal Agroteknos Vol 1, No 1 (2011)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

The research on the effet of mycorrhiza indigenous of weed to weed density has carried out at Jatinangor West Java on August untill November 20008. The statistical method used in the this research was randomized block design with three replications. The research showed that important value of broads leaves at tillage are Lantana camara (L.) as 2,93 %, Mimosa pudica (L.) as 2,50 %, Ricinus communis (L.) as 2,46 %), Solanum torvum SW as 2,46 %, and Eupatorium odorata (L.) as 2,03 %. The important value of grasses are Imperata cylindrica (L.) Beauv as 1,61 % and Sacciolepis indica (L.) Chase as 1,47 %. Thus important value of sedges is Cyperus rotundus (L.) as 1,90 %. For 14 HST, important value of board leaves are Momordica charantia (L.) as 6,58 %, Ricinus communis (L.) as 3,62 %, Polygonumlongisetum De Br as 3,34 % and Ageratum conyzoides (L.) as 3,34 %. The important value of grasses are Eleusine indica (L.) Gaertn as 1,78 % dan Cynodon dactylon (L.) Pers as 1,37 %. Key words : mycorrhiza indigenous, weed, important value, , grasses, sedges

KONTRIBUSI Pratylenchus brachyurus DALAM MENGINDUKSI GEJALA LAYU PADA TANAMAN NANAS (Ananas comosus (L.) Merr) Lisnawita, Lisnawita; Supramana, Supramana; Suastika, Gede
Jurnal Agroteknos Vol 1, No 2 (2011)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

ABSTRACTPineapple is one of the leading export commodities in Indonesia and grown in North Sumatra, South Sumatra, Riau, Bangka, Lampung, West Java and East Java. The main constraint of the cultivation of pineapple is wilt disease caused by plant parasitic nematodes. Research during the years 2008 has been done to study contribution of Pratylenchus brachyurus infection on wilting symptoms induction of pineapple on the pineapple plantation in the Village Bunihayu, Jalancagak district, Subang. The result showed Pratylenchus brachyurus dan P. coffeae (lesion nematode) were the dominant nematodes observed on the location which the community prevalence reached 82.50% and 17.50%. Mapping relationships of nematode populations at various levels of plant growth found that the two nematodes were contributing to the incidence and severity levels of wilt disease, especially in the generative phase of pineapple in the field. Keywords: Pratylenchus brachyurus, pineapple wilt, pineapple (Ananas comosus (l.) Merr)

DAYA HASIL BEBERAPA KULTIVAR PADI GOGO LOKAL ASAL SULAWESI TENGGARA PADA CEKAMAN KEKERINGAN Sadimantara, Gusti Ray; Muhidin, Muhidin
Jurnal Agroteknos Vol 2, No 3 (2012)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

Demand for rice as a source of food continues to rise, while the capacity to produce a rice paddy more limited. One effort is to develop upland rice tolerance to drought and high production potential. The study was conducted at the Experimental Faculty of Agriculture Unhalu. Character judgments production were observed between (1) the number of tillers at harvest, (2) the number of productive tillers, (3) panicle length (cm), (4) the number of filled grain/panicle and seed weight of 100 grains. The results showed that there are two varieties that are very resistant to drought conditions, namely Bali and Wangkariri Sala. While five local upland rice varieties are very sensitive to drought are varieties Paebiu Sitoro, Wagamba, Paebiu Angata, Apolo, Wakawondu. Keywords: drought resistance, drought stress, upland rice.

PERAKITAN PUPUK ALAM BERBASIS SUMBERDAYA LOKAL UNTUK MENINGKATKAN EFISIENSI PEMUPUKAN P DAN K SERTA HASIL KEDELAI DI TANAH MASAM Tufaila, Muh.; Alam, Syamsu
Jurnal Agroteknos Vol 3, No 3 (2013)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

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).

RESPON HASIL DAN JUMLAH BIJI BUAH SEMANGKA (Citrullus vulgaris) DENGAN APLIKASI HORMON GIBERELIN (GA3) Wijayanto, Teguh; Yani, Wa Ode Rahzia; Arsana, Made Widana
Jurnal Agroteknos Vol 2, No 1 (2012)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

Hormone gibberellin (GA3) is known to be able to increase yield and plays a role in the production of seedless fruits. This research was conducted to determine the effects of GA3 application on yield and quality (seed number) of watermelon. The research was performed at the experimental farm of Agriculture Faculty, University of Halu Oleo. The research was arranged in a Complete Randomized Design (CRD) with a single factor (dose of GA3), consisted of 6 (six) levels, namely: without GA3 application (G0), GA3 100 mg L-1 (G1), GA3 150 mg L-1 (G2), GA3 200 mg L-1 (G3), GA3 250 mg L-1 (G4), and GA3 300 mg L-1 (G5). Each treatment consisted of 4 (four) plants, with 3 replicates, to make an averall 72 experimental units (plants). Research results showed that the application of GA3 significantly influenced the fresh fruit weight, fruit diameter, fuit content diameter, and seed number. Treatment of gibberellin 300 mg L-1 (G5) tended to produce higher yield (fresh fruit weight, fruit diameter, fuit content diameter), while G4 treatment (250 mg L-1) resulted in the lowest number of seeds in the fruit. Despite further research is still needed, this research indicates that the application of gibberellins (GA3) has the potency in increasing the yield of watermelon and improving the quality, in term of the possibility to produce seedless watermelon. Keywords: gibberellins (GA3), fruit yield and quality, seedless fruit, watermelon.

ANALISIS PENGARUH SUHU DAN KELEMBAPAN TERHADAP PERKEMBANGAN PENYAKIT Tobacco mosaic virus PADA TANAMAN CABAI Taufik, Muhammad; Sarawa, Sarawa; Hasan, Asmar; Amelia, Kiki
Jurnal Agroteknos Vol 3, No 2 (2013)
Publisher : Jurnal Agroteknos

Show Abstract | Download Original | Original Source | Check in Google Scholar

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

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota kendari,

Sulawesi tenggara

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota kendari, Sulawesi tenggara INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota kendari,

Sulawesi tenggara

INDONESIA