Jurnal Agroteknos
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PENGHAMBATAN CENDAWAN ENDOFIT ASAL TANAMAN KELOR UNTUK MENGENDALIKAN Colletotrichum sp. SECARA IN-VITRO
No full textColletotrichum sp. is an important pathogen causing anthracnose in chili peppers. Anthracnose can cause yield losses of up to 90%. The control method commonly used by farmers is chemical control, but this method is not environmentally friendly. Endophytic fungi can be isolated from various plants, both cultivated plants and wild plants or weeds. Moringa is a plant that grows well in Southeast Sulawesi and is a vegetable that has excellent benefits due to its high nutritional content and potential as a biological agent. This study aimed to obtain endophytic fungi from moringa that have the potential to inhibit the growth of the pathogenic fungus Colletotrichum sp. in vitro. The research began with the exploration of endophytic fungi from moringa plant tissues. Subsequently, pathogenicity tests, inhibition tests using the dual culture method, and inhibition tests using the volatile compound method were conducted. The results showed that there were 3 (three) isolates of endophytic fungi from moringa that have potential as biological control agents for Colletotrichum sp., namely isolates ED02, EB01, and EB02. Isolate ED02 was the best biological agent for controlling Colletotrichum sp. in vitro, with dual culture inhibition and volatile compound inhibition percentages of 74.10% and 37.45%
STUDI HUBUNGAN ANTARA pH, ALUMINUM DAPAT TUKAR, DAN KADAR P-TERSEDIA PADA TANAH ULTISOL DENGAN PEMBERIAN KOMPOS AMPAS SAGU
No full textThis research aimed to examine the relationship between soil pH, exchangeable aluminum (Al-dd), and available phosphorus (P-available) in Ultisol soil through the application of sago waste compost. The research was conducted in a greenhouse located in Wowawanggu Village, Kadia District, Kendari City. Soil analysis was performed at the Laboratorium Dasar Kimia Analitik, Haluoleo University. The study was designed based on a Completely Randomized Design (CRD) with sago waste compost treatment doses, where each treatment was repeated 3 times. The doses of sago waste compost tested consisted of three levels: 10 tons/ha (KAS1), 20 tons/ha (KAS2), and 30 tons/ha (KAS3). Soil analysis was conducted on pH, Al-dd, and P-available before and after the application of sago pulp compost. Observations after application were made in stages every 7 days with four observations. The results showed that the application of sago waste compost had a significant effect on increasing pH and P-available and decreasing Al-dd in Ultisol soil. There was a very strong relationship between pH, P-available, and Al-dd, as indicated by a correlation coefficient value of > 0.90. The best treatment was shown by KAS3, with a sago waste compost dose of 30 tons/ha
PRODUKTIVITAS TANAMAN CABAI MERAH BESAR PADA BERBAGAI DOSIS PUPUK KANDANG DAN JARAK TANAM
No full textLarge red chilies are a horticultural commodity that has quite high economic in Indonesia. This research aims to determine the effect of cow manure and planting distance on the production of large chili plants. The research was carried out at the Experimental Fields 2 of Agricultural Faculties of Halu Oleo University from November 2022 to April 2023. The experimental design used was a randomized block design in a factorial pattern consisting of 2 factor. The firs factors is cow manure which consists of 4 doses, namely without manure (Ko), 7,5 t/ha (K1), 15 t /ha (K2), and 22,5 t/ha (K3). The second factors is plant distance which consist of 3 types, namely plant distance 30 cm x 30 cm (J1), 30 cm x 40 cm (J2), and 30 cm x 50 cm (J3). Each treatment was repeated 3 times so that there were 36 experimental unit. The variables observed were the number of branches, number of flowers, length of fruit, number of fruit and weight of fruit. The results of the research showed that there was an interaction effect between the manure application treatment and plant spacing treatment on the production of large chili plant. The treatment of providing 15 t/ha of manure with a planting distance of 30 cm x 40 cm (J2K2) gives the highest production of large red chilies, namely 16,39 t/ha
ANALISIS TINGKAT KESEHATAN TANAMAN PADI SAWAH BERBASIS PENGOLAHAN CITRA DIGITAL
No full textRice is the main food crop in Indonesia, and plant health greatly affects production. Farmers in Lebo Jaya Village, Konda Subdistrict, South Konawe Regency, still use traditional cultivation techniques such as scattered planting systems and minimal liming and intensive fertilization, resulting in low levels of rice plant health. Digital image processing technology offers a more efficient and accurate alternative in diagnosing plant health compared to traditional methods. This study aims to evaluate the differences in the health level of paddy rice plants using different planting systems and cultivation technology inputs in Lebo Jaya Village based on digital image processing. The methods used include field surveys, recording, and image processing of rice plants of the Inpari 32, Ciliwung, and Inpari 33 varieties managed by farmers and HKTI-Sultra (Association of Indonesian Farmers Harmony-Southeast Sulawesi). The results showed that rice plants managed by HKTI-Sultra with a more advanced planting system and cultivation technology inputs had a higher level of health compared to rice plants managed by local farmers. Digital image processing technology proved effective in detecting and evaluating the health of rice plants based on differences in cultivation systems
INDUKSI TUNAS PISANG KEPOK (Musa paradisiaca L.) MENGGUNAKAN KOMBINASI KINETIN DAN IAA SECARA IN VITRO
No full textThis study aims to investigate the effect of combining Kinetin and IAA on the growth of kepok banana shoots in vitro. The research was conducted at the In Vitro Laboratory, Agrotechnology Unit, Faculty of Agriculture, Halu Oleo University, from January to April 2023. The study utilized a Completely Randomized Design (CRD) with six treatments: P1 = (Kinetin 1 mg L⁻¹ + IAA 2 mg L⁻¹), P2 = (Kinetin 3 mg L⁻¹ + IAA 4 mg L⁻¹), P3 = (Kinetin 5 mg L⁻¹ + IAA 6 mg L⁻¹), P4 = (Kinetin 2 mg L⁻¹ + IAA 1 mg L⁻¹), P5 = (Kinetin 4 mg L⁻¹ + IAA 3 mg L⁻¹), and P6 = (Kinetin 6 mg L⁻¹ + IAA 5 mg L⁻¹). Each treatment had five replicates, resulting in 30 experimental units, with four Kepok banana shoot explants per culture bottle. The observed variables included shoot emergence time, number of shoots, shoot length, and shoot growth percentage. Results indicated that the combination of Kinetin and IAA concentrations significantly affected the number of shoots and shoot emergence time and shoot length, but did not significantly affect the shoot growth percentage. The best treatment was P2 = (Kinetin 3 mg L⁻¹ + IAA 4 mg L⁻¹) for in vitro growth of Kepok banana shoots
EFEKTIVITAS APLIKASI TEPUNG DAUN SIRSAK DENGAN BERBAGAI DOSIS BOKASHI TERHADAP PENYAKIT LAYU FUSARIUM PADA TANAMAN TOMAT (Solanum lycopersicum L.)
No full textTomato (Solanum lycopersicum L.) is a vegetable commodity whose market demand continues to increase from year to year, so it requires good cultivation management so that the quantity and quality of tomatoes also continues to increase. One of the reasons for the less than optimal production of tomatoes is caused by the fungus Fusarium spp. This study aims to determine the Effectiveness of Soursop Leaf Powder Application with Various Doses of Bokashi Against Fusarium Wilt Disease in Tomato (Solanum lycopersicum L.). This research was conducted at the Plant Protection Laboratory of the Phytopathology and Land Unit I (one) Faculty of Agriculture, Halu Oleo University, Kendari from October 2022 to January 2023 using a Completely Randomized Design (CRD) Factorial 2 Factors. The first factor was soursop leaf powder (T) consisting of control (T0), 50 g soursop leaf powder (T1), 75 g soursop leaf powder (T2). The second factor was bokashi fertilizer consisting of control (B0), 500 g bokashi fertilizer (B1) and 500 g bokashi fertilizer (B2). Thus, 9 treatments were obtained, and each treatment was repeated 3 times to obtain 27 experimental units. The variables observed were the incubation period, disease severity, AUDPC and disease suppression index. The best disease severity interaction was found in the T2B2 treatment with an average disease severity of 33.33%. The effect of the interaction application treatment had a very significant effect on the treatment of soursop leaf flour and bokashi fertilizer with an average incubation period of 63.33% HS
UJI EFISIENSI PENULARAN VIRUS GEMINI DENGAN SERANGGA KUTUKEBUL (Bemisia tabaci) PADA TANAMAN CABAI
No full textChili is one of the important vegetables that are cultivated commercially in tropical countries with various benefits. One of the important diseases of chili plants is jaundice caused by Begomovirus or gemini virus. The disease is transmitted through a whitefly (Bemisia tabaci). The research aims to evaluate the ability and number of whitefly insects that can transmit the gemini virus to chili plants. The research was carried out using a group random design (RAK), 4 treatments each treatment was repeated 5 times. The treatment consisted of no inoculation of whitefly on plants (S0), inoculation of 1 whitefly/plant (S1), inoculation of 3 whitefly/plant (S2) and inoculation of 5 whitefly/plant (S3). The variables observed were vegetative growth, incidence and severity of disease. The presence of the whitefly (B. tabaci) increases the incidence and severity of jaundice and inhibits growth in cayenne pepper plants (C. annuum). The transmission of the gemini virus is faster with the inoculation of 5 ticks/plant with the highest incidence and severity of the disease
PERTUMBUHAN TANAMAN TERUNG UNGU (Solanum Melongena L.) PADA BERBAGAI DOSIS PUPUK ORGANIK CAIR (POC) BERBAHAN DASAR AIR CUCIAN BERAS
No full textThis research is motivated by the fact that eggplant production is still low because it is triggered by the condition of agricultural land which is less fertile and the limited availability of nutrients. One alternative used to overcome this is liquid organic fertilizer (LOF) from rice washing water. This research aims to determine the effect of LOF made from rice washing water on the growth of eggplant plants and to determine the treatment that has the best effect on the growth of eggplant plants. This research was carried out at the Experimental Garden Field Laboratory II and the Agrotechnology Laboratory, Agronomy Unit, Faculty of Agriculture, Halu Oloe University (HOU) Kendari, Southeast Sulawesi from August to October 2023. The design used was a randomized block design (RBD) with LOF treatment of washing water rice consisting of three levels, namely 150 mL (B1), 300 mL (B2) and 450 mL L-1 water (B3). The variables observed were stem diameter, number of leaves, leaf area, number of branches, flowering age, total dry weight and root shoot ratio (RSR). Data from observations were analyzed using variance analysis (ANOVA) and further testing using Duncan's multiple range test (DMRT) at a confidence level of 95%. The results showed that LOF treatment of rice washing water had a very significant effect on stem diameter at 56 DAP; number of leaves and total leaf area at 14, 28, 42 and 56 DAP; number of branches, and total dry weight. The best treatment to increase the growth of eggplant plants is LOF at a dose of 450 mL L-1 water
ANALISIS KESESUAIAN LAHAN DAN KELAYAKAN EKONOMI BEBERAPA TANAMAN PANGAN PADA LAHAN BERBATU DI KECAMATAN GU KABUPATEN BUTON TENGAH
No full textAnalysis of land suitability and economic feasibility is a way that can be done to plan the development of food crops on rocky land. The research was carried out in Gu District, Central Buton Regency and soil analysis was carried out at the Integrated Laboratory of Halu Oleo University. The research method is a free survey method, land observation type is through drilling and socio-economic data is collected through filling out questionnaires and interviews with farmers. Land suitability analysis is carried out in actual conditions and land suitability after improvements have been made. The assessment is carried out by matching land characteristics with plant growth requirements. The economic parameter used to assess the feasibility of farming annual crops is the ratio of revenue to total production costs Revenue Cost Ratio (R/C). The results of the research show that the development of food crops is based on an analysis of land suitability and financial feasibility, namely the very suitable and very feasible category reaching 485.68 Ha, quite suitable and quite feasible reaching 3,568.69 Ha and not suitable and not feasible reaching 2,305.88 Ha. Directions for planting field rice, corn or soybeans by applying liming technology, applying organic material, nitrogen and phosphorus fertilization, making terraces and planting in the direction of the contour
PERUBAHAN BEBERAPA SIFAT KIMIA TANAH DAN PERTUMBUHAN TANAMAN JAHE MERAH SETELAH APLIKASI KOMPOS KULIT PISANG KEPOK PADA ULTISOL MASAM
No full textThe increasing need for red ginger as a raw material for medicines is a challenge for the farmers, but unfortunately ginger production is still lower than local and export demand. Basically, low soil fertility is a major obstacles in improving the productivity of ginger plants. This study aims to evaluate the changes of several soil chemical properties and the growth of red ginger plants treated with banana peel compost. This research was carried out at the Experimental Farm at the Faculty of Agriculture, Halu Oleo University from August to October 2021. This study used a randomized block design comprised of 4 treatments, namely K0 = no compost, K1 = 10 t ha-1 (400 g polybag-1), K2 = 20 t ha-1 (800 g polybag-1), K3 = 30 t ha-1 (1,200 g polybag-1) and repeated 4 times. The results revealed that the application of banana peel compost improved soil quality by increasing soil pH, organic C, CEC and total soil K. The improvements of soil properties were linear until the application of banana peel compost at 40 t ha-1. The application of banana peel compost has a significant effect on plant height and number of leaves and the impact was linear up to application of 30 t ha-1 (K3)