Jurnal Agroekoteknologi
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Uji Beberapa Konsentrasi Ekstrak Daun Bintaro (Cerbera manghas L.) Berpelarut Organik untuk Mengendalikan Ulat Bawang Merah (Spodoptera exigua Hubner)
Full text linkABSTRACT Shallot caterpillar (Spodoptera exigua Hubner.) is a major problem in onion cultivation. Spodoptera exigua can cause yield loss of 45-57% and can cause crop failure. Controls are generally carried out using synthetic insecticides, but the continuous use of synthetic insecticides can have a negative impact on humans and the environment. One alternative control that can be used is a vegetable insecticide with organic solvents from Bintaro leaf extract (Cerbera manghas L.). The study was aimed to obtain the concentration of bintaro leaf extract using an effective organic solvent to kill Spodoptera exigua larvae on shallots. This research was conducted at the Laboratory of Organic Chemistry and Natural Materials, Faculty of Engineering, Laboratory of Plant Pests and Laboratory of Experimental Gardens, Faculty of Agriculture, Riau University from July to September 2021. This research was conducted experimentally using a Completely Randomized Design (CRD) with six treatments and four treatments. replicates to obtain 24 experimental units. The treatments were bintaro leaf extract concentrations of 0%, 0.2%, 0.4%, 0.6%, 0.8%, and 1%. The results showed that a concentration of 1% was an effective concentration in killing Spodoptera exigua larvae of 87.50% with the fastest early death time at 12 hours after application, Lethal time 50 at 53 hours after application, and the highest daily mortality occurred on the third day, namely 35% after 5 days after application.Keywords : Bintaro leaf, Shallot, Spodoptera exigua Hubne
Pengaruh Zat Pengatur Tumbuh Benzyl Amino Purin di dalam Bioreaktor Sistem Perendaman Sesaat Pada Multiplikasi Tunas Pisang Seblot (Musa acuminata L.)
No full textThis study aimed to determine the effect of the growth regulator Benzyl amino purine for multiplication of banana shoots seblot in a bioreactor with a momentary immersion system. This research was carried out at the Physiology Biotechnology Laboratory Faculty of Agriculture Sultan Ageng Tirtayasa University, from March to May 2022. The research design was used a Randomized Block Design consisting of one factor, namely the concentration level of 6-Benzyl amino purine which consisted of six levels (0, 0.5, 1, 1.5, 2 and 2.5 ppm). The treatment of growth regulator Benzyl amino purine gave a very significant effect on the parameters of leaf emergence time and number of shoots at 1 and 5 weeks after planting (1.74 shoots). The number of leaves had a significant effect (1.96 sheet). While the parameters of the percentage of live explants, the percentage of rooted explants, the time of emergence of shoots and the percentage of contamination gave no significant effect
PENGARUH PERLAKUAN KONSENTRASI AIR KELAPA MUDA TERHADAP PERTUMBUHAN DAN HASIL TIGA VARIETAS TANAMAN KANGKUNG DARAT (Ipomea reptans P.)
Full text linkThis research was aimed to know the effect of concentration treatment young coconut water on the growth and result of three Varieties Land Water Spinach. This research was conducted from May until June 2021 at Cikupa, Tangerang. This Research used Randomized Completely Block Design (RCBD), consisted two factors. The first factor was concentration of young coconut water with four level, namely: K0 = control without concentration young coconut water, K1 = 225 ml concentration of young coconut water, K2 = 250 ml concentration of young coconut water, and K3 = 275 ml concentration of young coconut water. The second factor was Varieties of land water spinach with three level, namely: V1= Bangkok, V2= Bisi, V3=Bika. Each treatments repeated 3 times. Parameters observed were plant height, number of leaves, fresh weight per plant, and root long. The result showed that, 275 ml concentration of young coconut water gave the best result on the parameter plant height in 7 Day After Planting (DAP): 9,69 cm; 14 DAP (19,99 cm); 21 DAP (33,20 cm); and 28 DAP (47,03). The treatment of three Varieties, Bangkok gave the best result on number of leaves in 7 DAP (2,00 sheets). There were interaction between the treatment of concentration young coconut water and Varieties of land water spinach on the parameter plant height (28 DAP) and number of leaves (7 DAP). Key Words: Young Coconut Water, Varieties of land water Spinac
PERTUMBUHAN DAN KADAR HARA NPK TANAMAN KELAPA SAWIT DENGAN DAN TANPA APLIKASI DECANTER SOLID
No full text Oil palm is a widely cultivated plantation crop in Indonesia. Oil palm production is influenced by fertilizers. One of the organic wastes that can be used as fertilizer is a solid decanter. The purpose of this study was to determine the differences in growth and nutrient content of N, P and K in plants with solid decanters and those not. The research was carried out from October 2019 to March 2020 at PT. Sampoerna Agro Tbk, Mesuji Garden, Mesuji District, Ogan Komering Ilir Regency, South Sumatra. This study uses the t test with independent samples. Samples of oil palm plants used are immature oil palm plants (TBM) aged 2 years in blocks 13A and 18A which have been fertilized by NPK according to recommendations and in block 13A have been given a solid decanter of 15 tons ha-1. The results showed that plants that were applied solid decanter gave a significant difference response to plants that were not given solid decanter on the variable number of leaves, number of midribs and plant height and on nutrient levels of P and K with t test values of 0.001, 0.000, and 0.003 for variables growth and 0.006 and 0.000 in nutrient content variables. Based on the physical form, it also shows that plants that have solid decanter application have better shape, size and plant freshness than plants that are not applied with solid decanter. Oil palm is a widely cultivated plantation crop in Indonesia. Oil palm production is influenced by fertilizers. One of the organic wastes that can be used as fertilizer is a solid decanter. The purpose of this study was to determine the differences in growth and nutrient content of N, P and K in plants with solid decanters and those not. The research was carried out from October 2019 to March 2020 at PT. Sampoerna Agro Tbk, Mesuji Garden, Mesuji District, Ogan Komering Ilir Regency, South Sumatra. This study uses the t test with independent samples. Samples of oil palm plants used are immature oil palm plants (TBM) aged 2 years in blocks 13A and 18A which have been fertilized by NPK according to recommendations and in block 13A have been given a solid decanter of 15 tons ha-1. The results showed that plants that were applied solid decanter gave a significant difference response to plants that were not given solid decanter on the variable number of leaves, number of midribs and plant height and on nutrient levels of P and K with t test values of 0.001, 0.000, and 0.003 for variables growth and 0.006 and 0.000 in nutrient content variables. Based on the physical form, it also shows that plants that have solid decanter application have better shape, size and plant freshness than plants that are not applied with solid decanter. Keywords: Oil palm, Decanter Solid, Growth, Nutrient Conten
UJI KETAHANAN ENAM VARIETAS PADI (Oryza sativa L.) TERHADAP KEKERINGAN SECARA MORFOLOGI DAN MOLEKULER
Full text linkRice (Oryza sativa L.) is a staple crop that is always needed throughout the world, including Asia. Rice is one of the staple foods in Indonesia. One form of abiotic stress that becomes the main obstacle in rice production is drought stress. It is necessary to test rice varieties that are resistant to drought stress. This study aims to determine drought-resistant rice varieties based on SSR markers and to determine the morphological characteristics of drought-resistant rice. This research was carried out from January to April 2021 at the Laboratory of Physiology and Biotechnology, Faculty of Agriculture, Sultan Ageng Tirtayasa University and the Screen House of the Agricultural Technology Research Center Banten. The DNA isolation process in the molecular resistance test used the Doyle & Doyle (1990) method which used three SSR markers to detect drought resistance genes. Analysis of DNA bands using Gel Analyzer software, grouping analysis using the UPGMA method in NTSYS software. The results of the morphological study of six rice varieties on drought showed significant to very significant effects on the parameters of plant height (cm), root length (cm), number of tillers, and number of panicles. Molecular test results from three SSR primers on six rice varieties showed a high level of polymorphism with an average polymorphism information content (PIC) of 0.72 which was included in the very informative category and could be researched on drought resistance. The genetic similarity identified Jawara Hawara rice variety have drought resistance genes
Respon Morfofisiologi Tanaman Kelapa Sawit Pre Nursery pada Pemberian Kompos Kotoran Walet dan Bakteri Synechococcus sp.
Full text linkThe purpose of this study was to determine the effect of swallow manure and Synechococcus sp. bacteria on the morphophysiology of oil palm plants in Pre Nursery. The experiment used a factorial Randomized Block Design (RAK) and three replication. The first factor being swallow manure compost, W0 = 0 grams/plant, W1 = 100 grams/plant, W2 = 150 grams/plant, W3 = 200 grams/plant. The second factor was concentration of Synechococcus sp. Bacteria, S1 = concentration 10 ml/L, S2 = concentration 15 ml/L, S3 = concentration 20 ml/L. Parameters observed were plant height, stem diameter, the number of leaves, total chlorophyll, stomata density, stomatal opening width, and transpiration rate. Application of swallow manure compost had a significant effect on the parameters of plant height, number of leaves and total chlorophyll. Concentration of Synechococcus sp. gave a significant effect on the parameters of the transpiration rate while on morphology there was no significant effect on all parameters. The best dose of compost for plant height was 200 g of compost and 10 ml/L of bacterial concentration, while the treatment of 200 g of compost and 15 ml/L of bacterial concentration was the best dose of total chlorophyll and stomatal density parameters. Combination treatment of swallow manure compost and Synechococcus sp. gave a significant effect on the parameters of plant height, total chlorophyll and stomatal density. Keywords: Morphophysiology, Organic Fertilizer, Pre Nursery, Palm Oil, Synechococcus s
Pengaruh Konsentrasi Benzyl Amino Purin dan Indole Acetic Acid dalam Multiplikasi Tunas Pisang Merah (Musa acuminata Red Dacca) Asal Banten Secara in Vitro
No full textThis study aimed to determine the response of red banana shoots (Musa acuminata Red Dacca) origin from Banten in vitro due to administration of benzyl amino purin (BAP) and indole acetic acid (IAA) in various concentrations. This research was conducted at the Laboratory of Biotechnology and Plant Physiology, University of Sultan Ageng Tirtayasa from March 2022 to May 2022. The research design used was a factorial randomized completely block design consisting of two factors. The first factor is the concentration of BAP which consists of theree levels, namely 0 mg kg-1, 2 mg kg and 4 mg kg-1. The second factor is the concentration of IAA which consists of theree levels, namely 0 mg kg-1, 0.25 mg kg-1 and 0.50 mg kg-1. The concentration of 2 mg kg-1 BAP gave the best results on the parameters of the number of shoots aged 2 weeks after planting (WAP) (2.06 shoots), 4 WAP (2.38 shoots) and 6 WAP (2.50 shoots), the number of leaves aged 2 WAP (1.34 strands), 4 WAP (1.91 strands), 6 WAP (2.16 strands). The concentration of IAA 0 mg kg-1 gave the best results on the parameter of the number of leaves at 2 WAP (1.36 strands). Indole acetic acid concentration of 0.25 mg kg-1 gave the best results on the parameters ofthe number of roots aged 2 WAP (1.50 roots), 4 WAP (1.65 roots) and 6 WAP (1.78 roots). There was no interaction between the two treatments
Pemberian Pupuk Hayati dengan Interval Waktu Aplikasi Berbeda terhadap Perkembangan Penyakit Rebah Semai dan Pertumbuhan Sawi (Brasica Rapa) di Pesemaian
Full text linkSeedling fall disease caused by the fungus Rhizoctonia solani is one of the limiting factors in the cultivation of mustard plants. This pathogen can attack plants in the nursery as well as after the plants in the field. The aim of this study was to determine the effect of using biological fertilizers Azoto-Trico and KIBPF with different application time intervals on the development of seedling fall disease and the growth of mustard in the nursery. The study used Azoto-Tricho and KIBPF biological fertilizers with application intervals of 2 days, 4 days and 6 days. The results showed that the application of biological fertilizers Azoto-Tricho and KIBPF with different application time intervals had an effect on controlling seedling fall disease and increasing plant height and plant fresh weight. The application of Azoto-Tricho biofertilizer and KIBPF if applied at intervals of 2 days or 4 days or 6 days had the same ability to control seedling fall disease and increase plant height and fresh weight of mustard plants in nurseries
Pengaruh Konsentrasi dan Interval Aplikasi Pupuk Hayati Terhadap Kandungan N Tanaman, N-Total Tanah, Populasi Bakteri Endofitik, dan Hasil Tanaman Pakcoy (Brassica rapa L.)
Full text linkThe purpose of this research was to analyze the effect of Azolla biofertilizer application on plant N content, total soil N, endophytic bacteria population, and yield of pakcoy on Inceptisol Jatinangor soil. The research was carried out from August until November 2021 at Plastic House of the Faculty of Agriculture, Padjadjaran University, Sumedang with an altitude of ±750 m above sea level. The research was arranged in Factorial Randomized Block Design. The first factor was the concentration of biofertilizer were 5 ml L-1; 10 ml L-1; 15 ml L-1; and 20 ml L-1. The second factor was application intervals of one time, two times, and three times with three replications. Results showed that no interaction between various concentrations and application intervals of biofertilizer application on all parameters. The concentration of biofertilizer had significant effects on total nitrogen (N) soil, endophytic bacteria population, and yield of pakcoy, but had no significant effect on plant N content. The application intervals of biofertilizer did not affect on all parameters. Furthermore, the treatment of biofertilizer with concentration of 10 ml L-1 gave highest yield on the yield of pakcoy parameter which was 164.89 g but was not significantly different from the treatment with concentration of 15 ml L-1 and 20 ml L-1
RESPON TANAMAN OKRA MERAH (Abelmoschus esculantus L.) TERHADAP PEMBERIAN CUKA KAYU
Full text linkABSTRACT This study aims to determine the best concentration of wood vinegar on the growth and yield of okra plants (Abelmoschus esculantus L). This research has been carried out in Kenten Laut, Sukamaju, Sako, Palembang Indonesia from October 2017 to January 2018. The design of the research was Randomized Block Design (RBD) with 5 (five) treatments and 5 (five) replications. The treatment studied was the concentration of wood vinegar, namely P0 = control, P1 = 10 ml of wood vinegar/liter of water, P2 = 20 ml of wood vinegar/liter of water, P3 = 30 ml of wood vinegar/liter of water, P4 = 40 ml of wood vinegar/ liter of water. The variables observed were plant height, number of leaves, number of branche, age of flowering, number of flowers per plant, number of fruit per plant, fruit production (yield) per plot. Based on the results of the study can be concluded that wood vinegar with concentration of 40 ml/liter water (P4) increased plant height, number of leaves, amount of fruit, fruit weight per plant, and the yield per plot.Keywords: ocra, wood vinega