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PENGARUH PERLAKUAN BENIH DENGAN MENGGUNAKAN AGENS BIOKONTROL TERHADAP PENGENDALIAN PENYAKIT Rhizoctonia solani PADA PERTUMBUHAN BIBIT CABAI MERAH
Full text linkPerlakuan benih menggunakan rizobakteri sebagai alternatif pengganti penggunaan bahan kimia untuk mengendalikan penyakit tanaman. Penelitian ini bertujuan (1) mempelajari pengaruh beberapa jenis isolat rizobakteri dalam menghambat pertumbuhan Rhizoctonia solani terhadap pertumbuhan bibit tanaman cabai merah, dan (2) pengaruh perlakuan benih menggunakan rizobakteri sebagai pemacu pertumbuhan tanaman. Penelitian ini menggunakan rancangan acak lengkap (RAL) non faktorial. Faktor yang diteliti adalah rizobakteri sebagai agens biokontrol terhadap patogen Rizoctonia solani yang terdiri dari 18 isolat rizobakteri yaitu : Pseudomonas capasia (A1) , Bacillus megaterium (A2), Pseudomonas dimuta (A3), Bacillus bodius (A4), Bacillus laterophorus (A5), Bacillus larvae (A6), Bacillus alvei (A7), Bacillus coagulans (A8), Bacillus firmus (A9), Bacillus pilymixa (A10), Bacillus lichiniformis (A11), Bacillus stearothermophillus (A12), Actinobacillus suis (A13), Actinotorbacter sp. (A14), Azotobacter sp. INA8 (A15), Azotobacter sp. (A16), Necercia sp. (A17), Flavobacterium sp. (A18). Sebagai kontrol (A0) juga dikecambahkan benih yang tidak diberi isolat rizobakteri. Terdapat 6 rizobakteri dari 18 isolat yang diuji yang memberikan penurunan nilai gejala serangan patogen Rhizoctonia solani yaitu Pseudomonas dimuta, Bacillus bodius, Bacillus laterophorus, Bacillus lichiniformis, Bacillus stearothermophillus, dan Azotobacter sp. Perlakuan benih dengan rizobakteri Flavobacterium sp sangat nyata meningkatkan vigor benih pada tolok ukur indeks vigor. Perlakuan benih terbaik dalam meningkatkan pertumbuhan tanaman terhadap parameter tinggi tanaman dan diameter batang umur 4 MSP adalah Bacillus bodius dan parameter jumlah daun pada perlakuan jenis rizobakteri Pseudomonas capasia.Influence ofSeedTreatmentUsingAgensBio Control Against Rhizoctonia solani Disease andSeedlingGrowth ofRed Chili PepperSeed treatment using rizobakteri as an alternative to substitute the use of chemicals to control plant disease.. This study aims to (1) study the influence of several types of rizobacterial isolates in inhibiting the growth of Rhizoctonia solani on the growth of red chili seedlings, and (2) the influence of seed treatment using rhizobacteria as a trigger for plant growth. This study used a complete randomized design (RAL) non factorial. The factors studied were rizobacteria as a biocontrol agent against Rizoctonia solani pathogen consisting of 18 rizobacterial isolates: Pseudomonas capacia (A1), Bacillus megaterium (A2), Pseudomonas dimuta (A3), Bacillus bodius (A4), Bacillus laterophorus (A5) Bacillus larvae (A6), Bacillus alvei (A7), Bacillus coagulans (A8), Bacillus firmus (A9), Bacillus pilymixa (A10), Bacillus lichiniformis (A11), Bacillus stearothermophillus (A12), Actinobacillus suis (A13), Actinotorbacter sp . (A14), Azotobacter sp. INA8 (A15), Azotobacter sp. (A16), Necercia sp. (A17), Flavobacterium sp. (A18). As control (A0) also added seeds that were not given rizobacterial isolates. There were 6 rhizobacteria of 18 isolates tested which decreased the symptom value of pathogenic attack of Rhizoctonia solani ie Pseudomonas dimuta, Bacillus bodius, Bacillus laterophorus, Bacillus lichiniformis, Bacillus stearothermophillus, and Azotobacter sp. Treatment of seeds with rizobacteria Flavobacterium sp very significantly increases the vigor of seeds on the benchmark vigor index. The best seed treatment in improving plant growth on plant height parameters and stem diameter of 4 MSP was Bacillus bodius and leaf number parameters in the treatment of rhizobacteria Pseudomonas capacia
PERTUMBUHAN DAN HASIL BEBERAPA VARIETAS PADI PADA LAHAN KERING DENGAN PEMBERIAN BAHAN ORGANIK
Full text linkPenelitian ini dilaksanakan pada bulan September 2016 sampai Januari 2017 di Desa Teurebeh Kecamatan Kota Jantho Kabupaten Aceh Besar. Penelitian bertujuan untuk mengetahui pertumbuhan dan hasil serta interaksi dua varietas padi pada lahan kering dengan pemberian bahan organik. Rancangan yang digunakan rancangan petak terbagi 2 x 3 dengan 3 ulangan. Sebagai petak utama adalah varietas padi, sedangkan anak petak adalah bahan organik. Ada 2 faktor yang diteliti yaitu varietas dan bahan organik. Parameter yang diamati meliputi tinggi tanaman, jumlah anakan, jumlah daun, berat berangkasan basah, berat berangkasan kering, panjang malai, jumlah malai, berat gabah total, berat 1000 butir, jumlah gabah total, jumlah gabah berisi, persentase gabah berisi, persentase gabah hampa, dan potensi hasil. Hasil penelitian menunjukkan bahwa perlakuan varietas tidak berpengaruh terhadap pertumbuhan dan hasil padi gogo. Kecuali terhadap jumlah anakan umur 5 MST, dimana varietas Pula gajah lebih banyak jumlah anakan dibandingkan varietas Sanbei. Perlakuan bahan organik berpengaruh nyata pada jumlah anakan umur 4 MST, berat gabah total per rumpun dan potensi hasil per hektar, akan tetapi tidak berpengaruh nyata terhadap parameter lainnya. Perlakuan tanpa bahan organik lebih baik dibandingkan perlakuan kompos jerami padi dan pupuk kandang. Tidak terdapat interaksi yang nyata antara jenis bahan organik dengan varietas terhadap pertumbuhan dan hasil tanaman padi.Growth And Result Of Some Rice Varieties On Dry Land With Organic IngredientsThe research was conducted in September 2016 until January 2017 in Teurebeh Village, Jantho District, Aceh Besar District. The aim of this research is to know the growth and yield and the interaction of two varieties of paddy on dry land by giving organic material. The design used plot design is divided into 2 x 3 with 3 replications. As the main plot is the rice varieties, while the plot is organic. There are 2 factors studied are varieties and organic materials. The parameters observed were plant height, number of tillers, number of leaves, wet weight of wet weight, dried dry weight, panicle length, total panicle, total grain weight, 1000 grain weight, total grain, total grain, percentage of unhulled grain, , And potential outcomes. The results showed that the treatment of varieties did not affect the growth and yield of upland rice. Except for the number of tillers aged 5 MST, where varieties of elephant Pula are more number of tillers than the Sanbei varieties. The treatment of organic matter had significant effect on the number of tillers aged 4 MST, total grain weight per hill and yield potential per hectare, but no significant effect on other parameters. Treatment without organic material is better than the compost treatment of rice straw and manure. There is no significant interaction between the types of organic materials and the varieties of growth and yield of rice crops
PENGARUH VARIETAS DAN KEKERINGAN TERHADAP PERSENTASE POLEN TERWARNAI DAN HASIL PADI (Oryza sativa L.)
Full text linkTanaman padi (Oryza sativa L.) merupakan tanaman pangan utama masyarakat di Indonesia. Namun dengan meningkatnya populasi penduduk dan pola pemikiran masyarakat yang terbiasa makan satu jenis makanan saja maka kebutuhan beras meningkat sementara jumlah lahan persawahan semakin berkurang. Hal ini menjadi masalah tersendiri. Penelitian ini dilakukan di Kebun Percobaan Fakultas Pertanian Universitas Syiah Kuala Darussalam Banda Aceh. Penelitian ini dilaksanakan pada bulan Desember 2016 sampai Februari 2017. Alat yang digunakan adalah tray, ayakan, gergaji, cangkul, pot, kertas label, gunting, timbangan, meteran, timbangan analitik, cover glass, objek glass, mikroskop, petridis, oven, lemari es, spatula, termos es, pipet, pinset, erlenmeyer, kertas label, gelas ukur, amplop sampel, alat tulis, kamera. Sedangkan bahan yang digunakan dalam penelitian ini adalah benih padi varietas Situ Patenggang, Pula Gajah, dan Sanbei yang diperoleh dari laboratorium benih Fakultas Pertanian Universitas Syiah Kuala, tanah ultisol, pupuk (Urea, SP36, dan KCl), larutan Kalium Iodide 1%, dan aquades. Rancangan percobaan yang digunakan dalam penelitian adalah Rancangan Acak Kelompok (RAK) pola faktorial 2 x 3 dengan 3 ulangan. Adapun Parameter yang diteliti yaitu persentase polen terwarnai, jumlah anakan produktif, panjang malai, persentase gabah bernas dan hampa, berat gabah berisi per rumpun, berat 1000 butir, dan potensi hasil. Hasil penelitian menunjukkan kekeringan berpengaruh nyata terhadap potensi hasil. Sedangkan, varietas berpengaruh sangat nyata terhadap jumlah malai produktif, persentase gabah berisi, persentase gabah hampa dan potensi hasil dan berpengaruh nyata terhadap jumlah gabah berisi permalai, dan berat gabah berisi permalai. Varietas dengan persentase polen terwarnai tertinggi pada varietas sanbei demikian juga dengan potensi hasil. Terdapat interaksi yang tidak nyata antara varietas dan kekeringan terhadap persentase polen terwarnai dan hasil padiThe Influence of Varieties and Drought on the Percentage of Stained Pollen and Yield of Rice (Oryza sativa L.)Rice plants (Oryza sativa L.) is the main food crop for the people in Indonesia. However, with the increasing population and patterns of thought of the community who are accustomed to eating only one type of food, then the needs of rice increased while the number of rice fields is on the wane. This became a problem of its own. This research was conducted in the Experimental Garden of the Faculty of Agriculture, Syiah Kuala University Darussalam Banda Aceh. This research was conducted in the month of December 2016 to February 2017. The tools used were a tray, sieves, saws, hoes, pots, paper labels, scissors, scales, meter, analytical scales, cover glass, objects glass, microscope, Petri dish, oven, fridge, spatula, ice thermos, pipette, tweezers, Erlenmeyer flask, paper label, measuring cup, envelope samples, stationery, and cameras. While the materials used in this research were the rice varieties seeds of Situ Patenggang, Pula Gajah, and Sanbei which were obtained from the seed laboratory of Faculty of Agriculture, Syiah Kuala University, Ultisols soil, fertilizer (Urea, SP36, and KCl), a solution of Potassium Iodide 1%, and distilled water. The experimental design used in this research was Randomized Block Design (RBD) factorial pattern 2 x 3 with 3 replications. The parameters studied were the percentage of stained pollen, the number of productive tillers, the panicle length, the percentage of pithy and empty grains, the weight of the containing grains per clump, weight of 1000 grains, and yield potential. The results showed that drought significantly affected the yield potential. Whereas, varieties significantly affect the number of productive panicles, the percentage of containing grains, the percentage of empty grains and yield potential, and also significantly affect the amount of containing grains per panicle, and the weight of the containing grains per panicle. Variety with the highest percentage of stained pollen was on the Sanbei variety, as well as with the yield potential results. There were indirect interactions between varieties and drought on the percentage of stained pollen stained and the yield of rice
Pengaruh Fungi Mikoriza Arbuskular Spesifik Lokal dan Kompos Terhadap Hasil Tanaman Jagung ( Zea mays L.) pada Tanah Marginal Ultisol
Full text linkPenelitian ini bertujuan untuk mengetahui pengaruh pemberian jenis mikoriza arbuskular spesifik lokal dan kompos serta interaksinya terhadap pertumbuhan dan hasil tanaman jagung pada tanah marginal Ultisol. Penelitian ini berlangsung dari bulan Juni hingga Oktober 2016, di Rumah Kasa Fakultas Pertanian Universitas Syiah Kuala. Penelitian ini menggunakan Rancangan Acak Kelompok pola faktorial dengan sembilan kombinasi perlakuan dan tiga ulangan, sehingga diperoleh 27 satuan percobaan. Faktor yang diteliti yaitu pemberian jenis mikoriza arbuskular (FMA) yang terdiri dari tiga taraf yaitu: tanpa FMA, Glomus sp. dan Acoulospora sp. sedangkan dosis kompos dengan tiga taraf yaitu: tanpa kompos, 25 g pot-1,50 g pot-1. Peubah yang diamati dalam penelitian ini jumlah biji per tongkol, berat biji kering per tongkol, berat 100 butir biji kering, dan hasil per hektar. Hasil penelitian menunjukkan bahwa perlakuan baik pemberian jenis mikoriza arbuskular (FMA) dan dosis kompos tidak berpengaruh nyata terhadap jumlah biji per tongkol, berat biji kering per tongkol, berat 100 butir biji kering dan hasil per hektar. Terdapat interaksi yang sangat nyata antara perlakuan pemberian jenis FMA dengan dosis kompos terhadap hasil per hektar serta berpengaruh nyata terhadap berat biji kering per tongkol.Efffect Of Specific Local Arbuscular Mycorrhizas Fungi and Compost Towards Corn(Zea mays L.) On Marginal Land UltisolThe aim of this research was to obtain information about the effect of local and compost specification arbuscular mycorrhizal fungi distribution and the relation towards the growth and result of corn crops on the ultisol marginal land. This research was conducted at Greenhouse of Agriculture Faculty Syiah Kuala University, from June to October 2016. This research used factorial pattern of Cluster Random Plan with nine combinations of treatment and three repetition, thus, 27 attempt of experimentation was obtained. The factors which were inspected in this research are the distribution of arbuscular mycorrhizal fungi which consist of three categories; without arbuscular mycorrhizal fungi, Glomus sp., and Acoulospora sp. while the dosage of compost in three categories; without compost, 25 g pot, 50 g pot. The variables which are observed in this research are the number of corn kernels, the weight of corn kernels per corncob, the weight of 100 dried seeds and the yields of corn crop per hectare. The result of the research conclude that the distribution of abuscular mycorrhiza fungi and thedose ofcompost this treatment did not have real effect on the height of the number of corn kernels per cob, the weight of dried seeds per corncob, the weight of 100 dried seeds, and the yields of corn crop per hectare. There are relation between the distribution of AMF treatment and the dosage of the compost to the length the yields of the corn crop per hectare, and also have a real effect on weight of dried seeds per cornco
EKSPLORASI FUNGI MIKORIZA ARBUSKULA PADA HISTOSOL DI PERKEBUNAN KELAPA SAWIT PT. NAFASINDO KABUPATEN ACEH SINGKIL DENGAN KULTUR TRAPPING
Full text linkEksplorasi fungi mikoriza arbuskula (FMA) dilakukan dengan kultur trapping menggunakan jagung sebagai tanaman inang dan beberapa media pembawa (pasir, biochar, zeolit). Sampel tanah yang digunakan berasal dari rizosfer berbagai umur kelapa sawit (1, 5, dan 10 tahun) dari PT. Nafasindo Aceh Singkil. Jumlah spora FMA terbanyak dijumpai pada rizosfer kelapa sawit umur 10 tahun (33,94) yang berbeda nyata dengan umur 1 tahun (14,94) dan tidak berbeda nyata dengan 5 tahun (21,88), sedangkan berbagai media tidak menunjukkan pengaruh nyata terhadap jumlah spora. Terdapat dua genus FMA yang ditemukan di perkebunan kelapa sawit PT. Nafasindo Kabupaten Aceh Singkil, yaitu Glomus (enam spesies) dan Acaulospora (satu spesies), Glomus merupakan spesies yang dominan. Persentase kolonisasi FMA tidak nyata dipengaruhi oleh umur kelapa sawit dan dan media pembawa pada kultur trapping. Kolonisasi FMA kelapa sawit berumur 1 tahun, 5 tahun, dan 10 tahun tergolong rendah . Seperti halnya umur tanaman, kolonisasi FMA pada berbagai media pembawa tergolong rendah.Exploration of Arbuscular Mycorrhizal Fungi on Histosol at Oil PalmPlantation Of PT. Nafasindo Aceh Singkil District with Trapping CultureExploration of Arbuskular Mychoriza Fungi (AMF) by trapping culture used maize as host plant and some carrier mediums (sand, biochar, zeolite). The soil samples used were derived from the various age rhizosphere of oil palm (1, 5, and 10 years) from PT. Nafasindo Aceh Singkil. The results showed that highest number of FMA spores were found in the 10-year-old palm oil rhizosphere (33.94) which was significantly different from the age of 1 year (14.94) and was not significantly different from 5 years (21.88), while the media showed no significant effect on Number of spores. There were two genera of FMA found in oil palm plantation PT. Nafasindo of Aceh Singkil Regency, namely Glomus (six species) and Acaulospora (one species), Glomus is the dominant genus. The percentage of AMF colonization was not significantly affected by the age of oil palm and carrier media in trapping culture. AMF colonization of oil palm aged 1 year, 5 years, and 10 years was low. As like the age, FMA colonization of various carrier media was low
PENGARUH PERLAKUAN BENIH MENGGUNAKAN RIZOBAKTERI PEMACU PERTUMBUHAN TANAMAN TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN OKRA (Abelmoschus Esculentus L. Moench)
Full text linkPenelitian ini bertujuan untuk mengetahui pengaruh perlakuan benih menggunakan rizobakteri pemacu pertumbuhan tanaman dan jenis rizobakteri yang tepat terhadap peningkatan pertumbuhan dan produksi tanaman okra. Penelitian ini dilaksanakan di Kebun Percobaan 1 dan Laboratorium Ilmu dan Teknologi Benih Fakultas Pertanian Universitas Syiah Kuala yang berlangsung pada bulan Oktober sampai Desember 2020. Percobaan disusun berdasarkan rancangan acak kelompok (RAK) non faktorial dengan 16 perlakuan yang terdiri atas 15 perlakuan isolat rizobakteri dan perlakuan kontrol. Setiap perlakuan diulang sebanyak 3 kali. Hasil penelitian menunjukkan bahwa perlakuan terbaik terdapat pada jenis rizobakteri Bacillus badius yang mampu meningkatkan parameter tinggi tanaman okra 15, 30, 45 dan 60 HST dan jenis rizobakteri Bacillus larvae yang mampu meningkatkan diameter batang 60 HST, jumlah daun 45 dan 60 HST serta berat buah pertanaman.The Effect of Seed Treatment Using Plant Growth Promoting Rhizobacteria on Growth and Production of Okra (Abelmoschus esculentus L. Moench)This study aims to determine the effect of seed treatment using plant growth promoting rhizobacteria and the right types of rhizobacteria on increasing growth and production of okra. This research was conducted at Experimental Garden 1 and Seed Science and Technology Laboratory, Faculty of Agriculture, Syiah Kuala University from October up to December 2020. Randomized Block Design (RBD) non factorial that consisted 16 treatments was used in the research. The treatments were control and 15 rhizobacteria isolates, every treatment was replicated 3 times. The results showed that the best seed treatment using rhizobacterial isolates Bacillus badius was able to increase the height parameters of okra plants 15, 30, 45 and 60 DAP, and rhizobacteria of Bacillus larvae were able to increase stem diameter 60 DAP, number of leaves 45 and 60 DAP and weight of fruit in a plant
RESPON PEMBERIAN PUPUK ORGANIK CAIR (POC) BONGGOL PISANG TERHADAP PERTUMBUHAN DAN PRODUKSI BEBERAPA VARIETAS CABE RAWIT (Capsicum frutencens L var. Cengek)
Full text linkPenelitian ini bertujuan untuk mengetahui respon pertumbuhan dan produksi beberapa varietas cabe rawit (Capsicum frutencens L Var. Cengek) terhadap berbagai konsentrasi pupuk organik cair bonggol pisang serta nyata tidaknya interaksi kedua faktor tersebut. Penelitian ini dilaksanakan di UF (University Farm), Universitas Teuku Umar Meulaboh Aceh Barat mulai dari bulan April 2019 sampai dengan selesai. Bahan yang digunakan dalam penelitian ini adalah benih cabai rawit varietas Genie, Bara dan sigantung, POC bonggol pisang dan polybag. Sedangkan alat-alat yang akan digunakan antara lain cangkul, parang, gembor, ember, gelas ukur, timbangan analitik, kereta sorong, gayung, meteran, papan nama, kamera dan alat tulis menulis. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) pola faktorial 6 x 3 dengan 3 ulangan. Faktor yang diteliti meliputi konsentrasi pupuk organik cair bonggol pisang dan varietas. Faktor konsentrasi POC bonggol pisang (K) terdiri dari 6 taraf yaitu K0 = 0 (Kontrol), K1 = 10% (100 ml POC/ 900 ml air), K2 = 20% (200 ml POC/ 800 ml air), K3 = 30% (300 ml POC/ 700 ml air), K4 = 40% (400 ml POC/ 600 ml air) dan K5 = 50% (500 ml POC/ 500 ml air). Faktor varietas (V) terdiri dari 3 taraf yaitu V1 = Genie, V2 = Bara dan V3 = Pelita Peubah yang diamati adalah tinggi tanaman, diameter pangkal batang, jumlah buah, berat buah dan produksi per hektar. Hasil uji F pada analisis ragam menunjukkan bahwa konsentrasi POC bonggol pisang berpengaruh sangat nyata terhadap diameter pangkal batang 20 dan 30 HST, jumlah buah, berat buah dan produksi per ha. Berpengaruh nyata terhadap tinggi tanaman 20, 30 dan 40 HST, diameter pangkal batang 40 HST. Varietas berpengaruh nyata tinggi tanaman 30 dan 40 HST, diameter pangkal batang 20, 30 dan 40 HST, jumlah buah, berat buah dan produksi per ha. Namun berpengaruh tidak nyata terhadap tinggi tanaman 20 HST. Tidak terdapat interaksi antara konsentrasi POC bonggol pisang dan varietas terhadap semua peubah pengamatan yang diamati.Response of Giving Liquid Organic Fertilizer (POC) Banana weevil to Growth and Production of Several Varieties of Chili (Capsicum frutencens L. Var. CengekThis study aims to determine the response of growth and production of several varieties of cayenne pepper (Capsicum frutencens L Var. Cengek) to various concentrations of liquid organic fertilizer of banana weevil and the interaction between the two factors. This research was conducted at UF (University Farm), Teuku Umar Meulaboh University, West Aceh, starting from April 2019 until completion. The materials used in this study were Genie, Bara and sigantung chili seeds, POC banana weevil and polybag. While the tools that will be used include hoes, machetes, fansticks, buckets, measuring cups, analytical scales, wheelbarrows, dipper, meter, nameplate, camera and writing stationery.The design used in this study was a 6 x 3 factorial randomized block design (RBD) with 3 replications. Factors studied included the concentration of liquid organic fertilizer of banana weevil and varieties. Banana POC (K) POC concentration factor consists of 6 levels, K0 = 0 (Control), K1 = 10% (100 ml POC / 900 ml water), K2 = 20% (200 ml POC / 800 ml water), K3 = 30% (300 ml POC / 700 ml water), K4 = 40% (400 ml POC / 600 ml water) and K5 = 50% (500 ml POC / 500 ml water). Variety factor (V) consists of 3 levels, namely V1 = Genie, V2 = Bara and V3 = Pelita The observed variables are plant height, stem diameter, number of fruits, fruit weight and production per hectare.F test results on the analysis of variance showed that the POC concentration of banana weevil had a very significant effect on the stem diameter of 20 and 30 HST, number of fruits, fruit weight and production per ha. Significantly affected plant height 20, 30 and 40 HST, stem diameter of 40 HST.Varieties significantly affected plant height 30 and 40 HST, stem diameter 20, 30 and 40 HST, number of fruits, fruit weight and production per ha. But no significant effect on plant height 20 HST.There was no significant interaction between the POC concentrations of banana weevil and varieties on all observed observational variable
EKSPLORASI FUNGI Mikoriza arbuskular PADA LAHAN KERING MASAM JANTHO ACEH BESAR
Full text linkFungi mikoriza arbuskular (FMA) merupakan fungi yang membentuk simbiosis mutualisme dengan akar tanaman. FMA dapat dijumpai pada berbagai tipe ekosistem dan beragam tumbuhan, termasuk pada lahan kering masam. Penelitian ini bertujuan untuk mengetahui populasi dan jenis fungi mikoriza arbuskular pada lahan kering masam Jantho, Aceh Besar. Metode penelitian yang digunakan dalam penelitian ini adalah eksploratif. Sampel tanah diambil pada rizosfer tanaman bayam duri (Amaranthus spinosus), belulang (Eleusine indica), jagung (Zea mays), kacang panjang (Vigna unguiculata), pecut kuda (Stachytarpheta jamaicensis), dan pisang (Musa paradisiaca). Kepadatan spora FMA tertinggi dijumpai pada rizosfer tanaman pecut kuda 76,4 per 50 g tanah. Genus FMA yang dijumpai pada lokasi penelitian yaitu Glomus, Acaulospora, Gigaspora, dan Scutellospora. Jenis spora FMA yang dominan dijumpai Glomus sp.1Exploration of Arbuskular Mycorrhizal Fungi on sour dry land of Jantho Aceh BesarFungi mycorrhizal arbuskular ( FMA ) is fungi forming symbiosis mutualisme by the plant. Fma could be found in various types of ecosystem and diverse herbs, including in dry land sour. Research aims to understand the population and type of fungi mycorrhizal arbuskular on land dry sour jantho, aceh besar. The methodology used in research is explorative. Soil samples taken at rizosfer the plant spinach spines (Amaranthus spinous), then (Eleusine indica), corn (Zea mays), chickpea (Vigna the unguiculata), pecut horses (Stachytarpheta jamaicensis), and bananas (Musa paradisiaca). Density spores fma highest rizosfer plants are pecut horses 76,4 per 50 g land. The genus fma found on research sites such as Glomus, Acaulospora,, Gigaspora, and Scutellospora. Kinds of spores fma dominant found glomus sp.
TOKSISITAS (LC50 dan LT50) JAMUR ENTOMOPATOGEN Beauveria bassiana (Bals.) Vuill. TERHADAP HAMA ULAT GRAYAK (Spodoptera litura F.)
Full text linkToxicity of enthomopathogenic fungi Beauveria bassiana to armyworm (Spodoptera litura) has been investigated in Pest Laboratory of Faculty of Agriculture, Syiah Kuala University, Darussalam, Banda Aceh. This research was aimed at determining lethal concentration (LC50) and lethal time (LT50) of B. bassiana suspensions against third instar larvae of armyworm. The fungi concentration used was in the range 0-6 % (w/v) or equal to 9,33 x 106 45,83 x 106 conidia/ml. The fungi suspension was applied to the larvae by dissolving the larvae into the suspension for 10 seconds. The number of the larvae died and the time required to kill the larvae were recorded everyday starting one day after application (DAA) until pupation. The relation between each observation to the fungi concentration was analyzed using probit analysis. The result showed that B. bassiana suspension caused the death of the larvae beginning 4 DAA with maximum eath on 10 DAA. The death of the larvae caused by the growth and the development of the fungi inside the larvae. The LC50 of the fungi suspension against the larvae was 3,57 % while the LT50 at 4, 5, and 6 % fungi concentration were 9,88; 8,13; and 6,8 days respectively
TEKNIK HYDROPRIMING DENGAN MENGGUNAKAN SENYAWA ORGANIK TERHADAP PENINGKATAN VIGOR BENIH BENIH MANGGIS
Full text linkAn experiment was conducted at seed science and technology laboratory, agriculture Faculty, Unsyiah from Mei to Agustus 2003. The objectives of this research were to evaluate the effect of organic compound on improving of mangosteen seed vigor. The research was calcilated with non factorial, based on Complete Randomized Design with four replications. The treatments were control and organic compound of five levels, i.e. coconut oil, corn, banana, carrot, and tomato. Each extract concentration used was 15%. Variables such as growth potential, seedling growth rate, speed of germination, and uniformity of growth were measured. The results showed that all organic compound significantly increased growth potential, seedling growth rate, speed of germination, and uniformity of groth. The coconut milk treatment is the best to increase mangosteen seed vigor