Jurnal Agroekoteknologi
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STUDI PERBANYAKAN TUNAS PUCUK ASTER CINA (Callistephus chinensis) DENGAN PENAMBAHAN PUPUK DAUN DAN AIR KELAPA SECARA KULTUR IN VITRO
Full text linkChina aster plant is a popular ornamental plant species in Indonesia, because aster has a beautiful flower with a wide range of colors such as purple, white, yellow, red, etc. Aster plant as an ornamental plant is quite attractive, but the seed supply is limited due to many factors inhibiting the cultivation techniques, so the availability of aster seeds in the field is quite limited. Plant propagation using in vitro culture technology represents a major opportunity to produce seedlings in a short time and the number of lots. This research used Randomized Completely Block Design (RCBD) with five treatments and five replications with each treatment used 5 units bottle culture samples so totally there were 125 units. The treatment of the research were: H0 (control), H1 (1.5 g Growmore + 30% Coconut Milk), H2 (1.5 g Growmore + 40% Coconut Milk), H3 (2 g Hyponex + 30% Coconut Milk) and H4 (2 g Hyponex + 40% coconut Milk). Parameters observed were: the time to sprout, shoot height, the time to form roots, number of roots and root length. The result showed that the analysis of variance was no significant effect to all parameters observed. Meanwhile, based on the tabulated results showed that the treatment H0 gave the best response to time to sprout, shoot height, time to grow roots and root length.Keywords: Aster China, Foliar Fertilizer, Coconut Wate
PERBANDINGAN SIFAT KIMIA DAN KESUBURAN FISIK TANAH PADA KONDISI TEMPAT TUMBUH ALAMI DAN BUDIDAYA TALAS BENENG (Xanthosoma undipes K.Koch) DI KAWASAN GUNUNG KARANG KAMPUNG JUHUT KABUPATEN PANDEGLANG PROVINSI BANTEN
Full text linkA research was aimed to know differences of fertility rates and physical chemistry on the type of talas beneng that grow wild and cultivated. This research was conducted from March until October 2015 in the village of Juhut, Pandeglang District, Banten Province. The research used survey and experiment methods. The results showed that the chemical characteristics of the soil on site conditions of wild talas beneng were: soil acidity was slightly sour, C-organic was low, total phosphorus was low to moderate, and potassium total was moderate. The physical properties and genesis of land had a silty loam texture. The soil structure had glob rounded, moist consistency was loose and without sticky. At cultivation growing conditions in the village of Juhut, Pandeglang in cultivation had status chemical properties of soil: soil acidity was neutral, C-organic content was low, total phosphorus was low to moderate, and total potassium was high. The physical properties and genesis was a silty clay loam soil, with a crumb structure, relatively moist crumbly consistency, with rather sticky.Keywords: Cultivation, Planting, Xanthosoma undipe
INIASI TUNAS SECARA KULTUR JARINGAN PADA STEVIA (Stevia rebaudiana Bertoni) DENGAN KOSENTRASI INDOLE BUTYRIC ACID (IBA) AND BENZYL AMINO PURINE (BAP) YANG BERBEDA
Full text linkThis research aims to know the initiation of bud stevia (Stevia rebaudiana Bertoni) in several concentrations of Indole Butyric Acid (IBA) and Benzyl Amino purine (BAP) are in in vitro. This research was conducted from August to October 2014 in engineering laboratory, Faculty of agriculture, University of Sultan Ageng Tirtayasa, Serang, Banten. This study used a Random group of Design with two factors. The first factor was the concentration of IBA 3 adequate for the applicable Io (0 mg/l), I1 (0.5 mg/l), I2 (1 mg/l) and the second factor is the concentration of BAP with 3 levels, apply B0 (0 mg/l), B1 (0.5 mg/l), B2 (1 mg/l). So, there are a total of 9 combination treatments repeated 3 times so that there are 27 units of the experiment. The results showed that treatment without IBA and BAP (I0B0) gave the best result in parameter first appearance of shoots (4 days after planting) and shoot length (0,85 cm). While, the treatment I2B2 (1 mg/l IBA and BAP) gave the best result in parameter leaves number (22 leaves).Keywords: initiation, stevia, growing regulatory substances, in vitr
PENGARUH MEDAN MAGNET SOLENOIDA DAN PERENDAMAN AIR MAGNETISASI TERHADAP BENIH KACANG KEDELAI ( Glicyne max (L) Merril) KADALUARSA VARIETAS TANGGAMUS
Full text linkThe study aims to determine the effect of the magnetic field strength and the duration of magnetized water on germination of 2 year old Tanggamus of expired soybean seeds. The study was carried out in a closed room with the temperature used was 16°C-20°C in Desember 2015 to January 2016. The study was compiled using a completely randomized factorial design with 2 factor. The first factor is the magnetic field strength which consist of 4 level M0 (the magnetic field strength of solenoid 0mT), M1 (the magnetic field strength of solenoid 1mT), M2 (the magnetic field strength of solenoid 2mT), M3 (the magnetic field strength of solenoid 3mT). The second factor is the duration of magnetized water which consists of 3 level T1 (the 18 hour duration of magnetized water), T2 (the 24 hour duration of magnetized water), T3 (the 36 hour duration of magnetized water). The treatment was repeated 3 times so that there are 36 units of observed variables experiment such as the germination age the potential of growth, the maximum speed of growth, the normal percentage of germination, the abnormal percentage of germination, the abnormal percentage of germination. The solenoid magnetic field treatment level 2 mT gave a very real influence on the parameters of the age of maximum growth potential, the growth rate, the percentage of normal seedliry of 6 month old and 2 year old expired soybean seeds. The treatments of soaking seeds with 24 hour duration of magnetized water produced the best developments on the 6 month old and 2 year old expired seeds even though there are differences in same of the best results in the observation parameter of both of the expired speeds. The best level treatment of 6 month old expired seed is the interaction of M2T2 level (the magnetic field strength 2mT and the duration of 24 hour magnetized water) which provided the best result to the parameter of maximum growth potential, percentage of normal germination, and percentage of abnormal germination. While the best level treatment of 2 year old expired seed is the interaction of M2T3 level (the magnetic field strength 2mT and the duration of 36 hour magnetized water) which provided the best result to the parameter of germination age, speed of growth and percentage normal germination.Key words : magnetized, solenoid, expiry, germination, soybean, seed
KERUSAKAN TANAMAN PALA AKIBAT SERANGAN PENYAKIT BUSUK BUAH KERING DAN HAMA PENGGEREK BATANG PALA DI KECAMATAN LEIHITU KABUPATEN MALUKU TENGAH
Full text linkFungus Stigmina myristicae causes rot dried fruit disease and pest Batocera herculesstem borer on nutmeg plants are found in Central Maluku, Province Maluku as the cause of plant damage nutmeg. Surveys in the District Laitutu Maluku Central was conducted in August 2014 with the aim to determine the intensity of the large and spacious dried fruit rot disease and stem borer, and the greater the intensity of dried fruit rot disease on various strata in the nutmeg crop. The results showed that the intensity of dried fruit rot disease is more prevalent in the nutmeg in the middle and lower strata of plants reached 1.42% and 2.09%, and in general to be 1.24%, while the area of the attack reached 23.90%. The intensity of the attacks stem borer reaches 1.76% and spacious attacks reached 0.56%. These results indicate that the nutmeg crop damage by Stigmina myristicae and Batocera hercules classified low category.Keywork:Stigmina myristicae, Batocera hercules,Nutmeg, Stem borer, Dried fruit rot
PATOGENESITAS Spodoptera exigua NUCLEO POLYHEDRO VIRUS UNTUK MENGENDALIKAN HAMA ULAT GRAYAK (Spodoptera exigua Hubn) DI PERTANAMAN BAWANG MERAH (Allium ascalonicum) SECARA IN VITRO
Full text linkControl of Grayak Caterpillar (Spodoptera exigua Hubn) pest by farmers generally is still use synthetic insecticides that have such a negative impact resistance, resurgence, killing natural enemies, increasing residue on crop yields, environmental pollution and health problems for users. One effort to reduce the use of chemical insecticides namely biological control method uses the Spodoptera exigua Nucleo Polyhedro Virus. This research was aimed to know the mortality rate army worm (Spodoptera exigua Hubn) by suspension Spodoptera exigua Nucleo Polyhedro Virus with different concentration. This research was conducted in the laboratory and green house of Vegetable Crops Research Institute at Lembang, Bandung from July until September 2014. This research used Randomized Completely Design (RCD). The result showed that Spodoptera exigua Nucleo Polyhedro Virus was significant to death of Spodoptera exigua. Spodoptera exigua Nucleo Polyhedro Virus concentration showed significant to mortality rates of Spodoptera exigua. In the test stage, the larvae of Spodoptera exigua 2 was the highest stage mortality was caused by infection Spodoptera exigua Nucleo Polyhedro Virus. Method of dipping caterpillars and feed applications were the best treatment because it showed the highest mortality. Pest control Grayak Caterpillar (Spodoptera exigua) in the field could use Spodoptera exigua Nucleo Polyhedro Virus coarse suspension of 10 g L-1 which was applied to the onion crop that was attacked.Keywords: Spodoptera exigua, Spodoptera exigua Nucleo Polyhedro Virus, Onio
KERAGAMAN DAN HERITABILITAS SEMBILAN GENOTIP TOMAT (Lycopersicum esculentum Mill.) PADA BUDIDAYA ORGANIK
Full text linkIn breeding activities, the testing of new varieties for a particular environmentneeds germplasm with high variability and genetic information, including thevalue of heritability estimates. The research was aimed to know the variability and estimate heritability value on 9 genotypes of tomato on organic farming. The research was conducted at Torongrejo village, Junrejo subdistrict, Batu, East Java at the altitude of ± 700 m above sea level. The research used the Randomized Completely Block Design with three replications and 9 genotypes of F5 generation as treatment. Selection was done in organic breeding that specified in applying organic pesticide and fertilizer without any synthetic chemicals. Data of the observation was analyzed to find out the analysis of variance (anova), coefficient of genotypic and phenotypic variances and heritability. The results showed that the number of pieces of good character, the number of total fruit, fruit weight was good, ugly fruit weight, fruit weight and the total weight per piece had high values for the coefficient of genotypic and phenotypic variability. Result of the heritability calculation on characters number of good fruit, good fruit weight and weight per fruit had low values.Keywords: Tomatoes, Genotypic and phenotypic variability, Heritability,Organic farmin
KERAGAAN PRODUKSI BENIH KEDELAI DI PROVINSI JAMBI
Full text linkNational soybean area harvested in the last decade tend to decline. This requires attention and study to find solutions to existing problems. This study aimed to identify implementation of seed production technology of soybeans in three agroecological land in Jambi Province, study the response of farmers to the technology used. This study was conducted from October 2010 through January 2011 in East Tanjung Jabung (Tidal Land), Tanjung Jabung West (Wetland irrigation) and Tebo Regency (Upland). The method used in this research is secondary data collection on soybean seed production technology that is the recommendation of Research Institute for Legumes and Umbiumbian. Furthermore, the survey method to collect primary data obtained through direct interviews with farmers in East Tanjung Jabung (Tidal Land), Tanjung Jabung West (Wetland irrigation) and Tebo Regency (Upland), Jambi Province. Purposive sampling method by farmers as respondents were taken of each region 10 farmers each breeder. The factors that affect farmers in seed production technologies analyzed in description. The results showed that the technology used in three different agro-ecological land this is due to soybean plants can be grown in various agro ecosystem with soil type, soil fertility, climate, and different cropping patterns so that constraints will differ from one agroecosystem other agroecosystem. With the technology is applied to the land tidal obtain the highest production compared with irrigated land and dry land. This happens because the tidal land application of cultivation technology of soybean seed production were adopted. From the results obtained with the expected higher seed production technology will be improved to increase the extent of unity
PENGARUH PEMBERIAN ZAT PENGATUR TUMBUH TERHADAP PERTUMBUHAN STUM MATA TIDUR KARET (Hevea brasiliensis Muell Arg.) KLON BPM
Full text linkThis research aimed to assess the effect of alternative plant growth regulators to the growth of stum dorman see rubber Klon BPM 24. This research was done at Lubung Saung Village, District And Banyuasin III Regency South Sumatera Province. This research used a randomized block design with five treatment and five replications. The treatments studied were B0 = 0 ml L-1control, B1 = 2 ml L-1 of water, B3 = 6 ml L-1of water, B4 = 8 ml L-1 of water. Each treatment consisted of 10 plants, with a long soaking the whole treatment is 15 minutes. Thus obtained 25 combined treatment. Each unit experiments are 3 examples of plans. Parameters namely speed sprout observations (HST), shoot length (cm), number of leak stalk (strands), the percentage of seedlings grown (%), weight berangkasan wet plant (g), dry weight of berangkasan plant (g), weight of wet roots departure (g), dan root dry weight berangkasan (g). Based on result obtained it can ce concluded that, the concentration of growth regulators treatment 0f 8 ml L-1 water tends to give the highest yield and better seed to grow that percentage to 80 %, the speed of growth is 20.40 HST shoots, shoot length is 30.79 cm, weight is plants dry berangkasan 7.10 g, wet weight is 1.94 g root, root dry weight is 0.88 g
PENGGUNAAN BERBAGAI MACAM MEDIA TUMBUH DALAM PEMBUATAN BIBIT INDUK JAMUR TIRAM PUTIH (Pleurotus ostreatus)
Full text linkThis experiments objective to determine the effect of the used of various growth substrates to make stock culture of oyster musroom spawn on the growt of mycelium. The experiments was conducted at the Faculty of Agriculture Agroekoteknologi Universitas Sultan Ageng Tirtayasa Serang Banten Province for the manufacture of pure cultures and Laboratory Pemuda Aktif Sejahtera, Village Sukamekarsari, Kalanganyar, Lebak, for making spawn in May until July 2011. The experiments used Randomized Control Group Design with seven treatments (A: corn , B: green beans, C: grain, D: millet, E: albasiah sawdust, F: mahoni sawdust, G: kecapi sawdust) and five replications. Results obtained from research the use of various growth substrates were significantly different age parameter begins to form mycelium, mycelium growth and percentage growth rete of mycelium