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All Journal Agrin : Jurnal Penelitian Pertanian Akta Agrosia
Supanjani, Supanjani
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Agriculture, Biological Sciences & Forestry

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Growing Caisim (Brassica juncea L.) Using Elaeisponic Production System Yanda, Yusrian S.O.; Fahrurrozi, Fahrurrozi; Supanjani, Supanjani
Akta Agrosia Vol 21 No 2 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Elaeisponic is new introducing growing technique to produce vegetables by planting it in the frond based of oil palm trees (Elaeis guineensis Jacq.). However, there was no previous report on vegetable production by using elaeisponic production system, including the use of foliar fertilizers. This study aimed to determine the optimum consentrations and frequency of foliar fertilization for caisim grown in elaesisponic production system. An experiment was conducted in oil palm plantation area by using a factorial randomized complete block design with three replicates. The first factor of treatment consisted of three levels of foliar fertilizer concentration, 1 g l-1, 2 g l-1 and 3 g l-1, and the second factor was application frequency of foliar fertilizer, 7 days after transplanting (DAT), 7, 14 DAT and 7, 14, 21 DAT. Crop responses were determined on leaf greenness (SPAD index), shoot fresh weight (g), root fresh weight (g), leaf area (cm2) and plant dry weight.  Results indicated that both concentration of foliar fertilizer and frequency of application as wells as its interaction did not significatly affect leaf greenness, leaf area, shoot fresh weight, root fresh weight and plant dry weight of caisim plants.  Further research should be addressed on optimizing the use of palm oil frond bases as growing medium for vegetable production.  Keywords: Elaeisponic Production System; Brassica juncea L; Foliar Fertilizer; Frequency of Application.
Effect Branch Pruning To Establishment On Shoot Growth and Flower Stimulation On Guava Nafisah, Dio; Supanjani, Supanjani; Suprijono, Eko
Akta Agrosia Vol 22 No 2 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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GuavaCrystalsarefromTaiwan,released byministryofAgricultureDecreeNo.540/Kpts/SR.120/9/2007.GuavaCrystalvarietiesare very prospective forcommercial developmentbecauseitcanproduce   throughtheyearandhasahighvitaminCcontent. Increasingpublicawarenessoftheimportanceofconsumingfreshfruitforhealthincrease the market demandforfreshfruit.Butthe highdemandforfreshguavafruitisnotsupported bytheproduction offreshfruiteveryyear.Continueddecliningguavaproductionrequires theimprovementofcultivationtechniquessothat   thequalityandquantityofguavafruit increases. ThisneedstoImprove ofcultivationtechniquesformeetthe needsoffreshguava. One ofsimplestcultivationtechniquestoimprovethe yieldofCrystalguavaispruning. This research intendtodetermine the effectofcroplengthonthe growthoflateralshootsandthe flowering of Crystal guava.ThisresearchwasconductedinDecember2016untilMarch2017at guavaplantation locatedinBentiringSub-ProvinceofBengkuluProvince.ResearchusedRAKLwithone singlefactor.The factorislengthofpruning,whichcomprisedoffourlevels10cm,20cm,30 cm,40cmandcontrol.The resultsofthisstudyindicatedthatthe numberofshootsmost grownonbrancheswith 40cmlongtrimmingof 2.87shoots.Mostflowersaregeneratedon brancheswithcuttinglengthsof30cm,40cm andnottrimmed.Butbrancheswith30cm long cutsexperiencedthe mostnumberoffallenfruitswitha95% percentage ofunshelled branches.Themostfruit isproducedonbranchesthatarenotprunedthatisasmuchas8.7 will fruit.Keyword:Guava Crystals, Long Prune, Lateral Shoots, Flowering
Rootstock Incision Type and the Origin of Bud on the Scion Influence the Success Rate of Budding Propagation of “Rimau Gerga Lebong” Tangerine Dhini, Debby R; Hermansyah, Hermansyah; Supanjani, Supanjani
Akta Agrosia Vol 21 No 2 (2018)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

The development of citrus crops is directed to produce tangerine plants that lead to substitute imported fruits by the development of budding seedlings technique using local varieties citrus.  This research was conducted in November 2016 until March 2017 in citrus nursery of Horticultural Seed Center of Pematang Donok Village, Kabawetan Sub-district, Kepahiang Regency, Bengkulu Province.  The research was arranged in a Completely Random Design with combination of two treatments, the first treatment was the origin of bud on the scion plant, they were E1 (upper part of the shoot scion), E2 (middle part of the shoot scion), E3 (basal of the shoot scion).  The second treatment was cut type on the rootstock, they were J1 (H type), J2 (Forkert slice), J3 (T wedge).  The treatment was repeated three times, so there were 27 experimental units.  Each experimental unit consisted of 10 liners, so there were 270 liners of the experiment.  The result of this research showed that incision types of H model and Forkert model, as well as the bud originated from the middle and the basal part of shoot scion were good to support the success rate of budding propagation of Rimau Gerga Lebong (RGL) tangerine.
Delivery of Arbuscular Mycorrhiza Fungus Spores via Seed Coating with Biodegradable Binders for Enhancement of the Spores Viability and Their Beneficial Properties in Maize Marwanto, Marwanto; Bustaman, Hendri; Handajaningsih, Merakati; Supanjani, Supanjani; Murcitro, Bambang Gonggo; Salamah, Umi
Akta Agrosia Vol 23 No 1 (2020)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

biodegradable polymer such as PVA is considered the most promising candidates for developing the sustainable sticker. The objective of this study was to determine the most suitable PVA + TS blends as adhesives agent for AMF spores inoculation via seed coating which can enhance the spores viability and their beneficial properties in maize. The polythene bag experiment was performed in a screen house of the Department of Plant Protection Faculty of Agriculture, University of Bengkulu Indonesia in 2015. Six adhesive blends were employed: 100% PVA + 0% TS, 75% PVA + 25% TS, 50% PVA + 50% TS, 25% PVA + 75% TS, 0% PVA + 100% TS, and no coating. The six experimental treatments were laid out in a completely randomized design with three replications. The results show that root colonization, AMF spore population, and shoot dry weight in 75% PVA + 25% TS were equal to those in 100% PVA. Root colonization, AMF spore population, shoot P content, and shoot P concentration were greater for 50% PVA + 50% TS than 100% PVA, 100% TS, and no coating. A mixture of 50% PVA + 50% TS was considered the preferred sticker. Thus, the tapioca starch can be used to substitute 25 - 50% of the PVA used without reducing AMF inoculant adhering to seed.Keywords: polymeric seed coating, seed coating formulation, arbuscular mycorrhizal fungi, sustainable coating adhesive, seed inoculation, seed inoculant
Rooting of Mini-Cuttings of guava cultivars (Psidium guajava L.) Treated with IBA under Misting Irrigation Supanjani, Supanjani; Rahayu, Hatari; Suprijono, Eko; Romeida, Atra; Yulian, Yulian
Akta Agrosia Vol 23 No 1 (2020)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

       Guava (Psidium guajava L.) is a plant whose fruit is very popular in Indonesia because it contains high vitamin C and its leaves can be used as herbal medicine. Orchard expansion of selected cultivars and fruit production of guava can be achieved vegetatively through  propagation by using mini-cuttings with the use of Indole Butyric Acids (IBA). A study was conducted to compare rooting success of mini-cuttings of herbaceous stem of four guava cultivars with IBA treatment. Four guava cultivars tested were Bengkulu Round, Getas, Crystal, and Bangkok.  Mini-cuttings were immersed in IBA solution at 0 ppm or 1000 ppm. Cultivar and IBA treatments were arranged factorially in a randomized complete  block design with  3 replications, each consisting of 25 cuttings. Variables observed included percentage of original-leaf shedding, percentage of emerging shoots, percentage of sprouting cuttings, new leaf number, root number, root length, and percent of rooted cuttings. The results demonstrated that cultivars affected rooting percentage, sprouted percentage, percentage of original-leaf fall, and number of root.  Getas had highest rooting and sprouting percentages, and showed lowest number of  original-leaf shedding; whereas, Bangkok demostrated greatest number of root.  IBA treatment increased the number of root and the number of original-leaf shedding, but reducing rooting percentage of mini-cutting. There was no interaction between cultivar and IBA teratment.
TEKNIK BUDIDAYA SINGKONG OLEH PETANI DI KOTA BENGKULU Supanjani, Supanjani
Agrin Vol 16, No 2 (2012): Agrin
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.agrin.2012.16.2.138

Abstract

Singkong dapat menjadi sumber pangan alternatif dan sumber bioenergi yang paling efisien dibandingkandengan tebu dan jagung, yang menjadi sumber utama bioetanol dunia. Penelitian ini bertujuan untukmengumpulkan informasi teknologi budidaya singkong, dari sisi klon, pengolahan lahan, penanaman danpemupukan, yang diterapkan oleh petani di Kota Bengkulu beserta produktivitasnya. Survey dilakukan denganmengidentifikasi pertanaman singkong yang sudah tumbuh dan cukup umur untuk dipanen, mendiskusikandengan petani teknik budidaya yang diterapkan, membeli, mengukur pertumbuhan dan memanen tanamansampel singkong untuk menduga produktivitasnya. Hasil penelitian menunjukkan bahwa teknik budidaya yangditerapkan oleh petani beragam sehingga produktivitasnya beragam dengan rentang 19 – 75 ton ha-1. Petanimemilih klon-klon yang telah terbukti berproduksi tinggi di daerahnya maupun di daerah lain. Produktivitasingkong yang tinggi disebabkan oleh penggunaan bibit unggul produksi tinggi, pengolahan lahan sempurna danpemupukan kandang yang dicampur pada saat pengolahan lahan. Fleksibilitas pemanenan ubi dapatdimanfaatkan oleh petani untuk mengatasi deteriorasi fisiologis pasca panen. Penelitian lebih lanjut perludifokuskan tentang keseuaian klon dan teknik budidaya yang meliputi pemupukan anorganik dan hayati denganmikroba pemacu pertumbuhan tanaman, serta kualitas singkong untuk bahan pangan dan bioethanol.Kata kunci: singkong, petani, produktivitas, teknik budidayaABSTRACTCassava can be the most efficient crop for food and altervative energy as compared with sugarcane andcorn, currently main feeding sources of world bioethanol. A survey was conducted to gather informationregarding cultural techniques used for growing cassava, with regard to clone/genetic selection, soil tillage,planting pattern and fertilization applied by farmers in Bengkulu City, and their related root productivity. Plotsof cassava crops reaching their maturity were identified. Discussions were accomplished farmers regarding withcultural techniques in growing cassava, follwed by measuring plant growth and taking samples for assessingroot growth and yield. The results demonstrated that farmers varied in applying cultural techniques for growingcassava hence their cassava yields varied greatly from 19 to 75 ton ha-1. Farmers selected cassava propagulesbased on information, both from their own vicinity or from other places, that they are high yielding. High rootproductivity was related to the use of high-yielding varieties, full tillage combined with manure fertilization. Theadvantage of flexibility in harvesting root were employed by farmers with daily harvesting to aleviate postharvestphysiological deterioration in selling fresh root. Based on this informastion, further researches shouldbe focused on the suitability of cassava clones with specific environment, cultural techniques, includinganorganic fertilization, the use of plant growth promoting rhizobacteri and their related root qualities for foodand bioethanol.Key words: cassava, farmers, cultural techniques, yield
Co-Authors Atra Romeida Bambang Gonggo Murcitro Bustaman, Hendri Dhini, Debby R Eko Suprijono Fahrurrozi Fahrurrozi Hermansyah Hermansyah Marwanto Marwanto, Marwanto Merakati Handajaningsih Nafisah, Dio Rahayu, Hatari Umi Salamah Yanda, Yusrian S.O. Yulian, Yulian