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All Journal Jurnal Ilmu-Ilmu Pertanian Indonesia Agrin : Jurnal Penelitian Pertanian TERRA : Journal of Land Restoration Akta Agrosia International Journal of Oil Palm
Supanjani, Supanjani
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Environmental Science

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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 : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.23.1.27-32

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.
PENGARUH DOSIS PUPUK KANDANG KAMBING DAN NPK 16:16:16 TERHADAP PERTUMBUHAN DAN KUALITAS JAMBU BIJI KRISTAL (Psidium guajava L.) PADA MUSIM PENGHUJAN Ariya Listari; Supanjani Supanjani; Sumardi Sumardi; Widodo Widodo; Djamilah Djamilah
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 21, No 1 (2019)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.21.1.44-48

Abstract

ABSTRACT[THE EFFECT OF GOAT MANURES AND NPK 16:16:16 FERTILIZER ON THE GROWTH OF SEEDLESS GUAVA CROPS AND QUALITY OF ITS FRUIT (Psidium guajava L) AT RAINY SEASONS OF INDONESIA]. Guava var. Crystal, known as seedless guava, is one of the most popular guava in Indonesia. Compated to other guavas, seedless guava has softer texture, tastes sweeter, and has less seeds. This experiment was carried out from September 2017 to February 2018 at Harapan Makmur village, Pondok Kubang regency, and Central Bengkulu district. The objective of this experiment was to evaluate the effect of goat manures and NPK 16:16:16 fertilizers on the growth of guava crops and the quality of its fruits. The experiment was arranged in randomized complete block design (2 factors, 5 replications). The first factor tested was the dose of goat manures, consisting of 3 levels: 0, 9, and 18 kg/plant. The second factor tested was the dose of NPK 16:16:16 fertilizers, consisting of 3 levels: 0, 0,25, and 0.5 kg/plant. The results showed that goat manures significantly affected the diameter and number of branches. In addition, the dose of NPK significantly affected the diameter of branches, degree of leaf greenness, number of flower, and number of aborted flowers. Finally, the interaction between goat manures and NPK manures did not significantly affect all variables measured, except for leaf areas.
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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Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar

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.
Oil Palm Roots Architecture in Response to Soil Humidity Yazid Ismi Intara; Abimanyu Dipo Nusantara; Supanjani Supanjani; Zulbahrum Caniago; Riska Ekawita
International Journal of Oil Palm Vol. 1 No. 2 (2018): May 2018
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

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Abstract

Oil palm (Elaeis guenesis) is one of the most important estate crop commodities in Indonesia. The root is one of the plant organs which plays a vital role in plant growth and palm oil production. The objective of this research was to determine the architecture of oil palm roots in response to soil humidity in the root zone in its initial water footprint system. Destructive and non-destructive methods were used to determine the roots’ parameters, i.e. root depth, root length and root density of oil palm age of mature plants. The result showed that depending on the type of the plant material and the soil, oil palm roots could grow horizontally reaching more than 6 m and vertically about 1.5–5 m. Dead primary roots were soon replaced by new ones. Primary roots predominantly served to structurally support the plant so that this root may grow into deeper layers of the soil. Secondary roots generally spread evenly and act as an anchor of the plant body to the ground which in turn strengthen the plant stand. Active horizontal root nets are always renewed with new roots arising from the stem-ends of the palm. The horizontal root nets were located on a radius of 0–1.5 m of a depth of 0–0.4 m, which were very solid for primary, secondary, tertiary and quaternary roots as well as the nets. This condition actively changed the dead roots with new roots. The root mat is very unique, forming a nest mat that can capture and control water availability in the environment of the soil surface around the growing space of oil palm. The architecture of oil palm roots has naturally adapted to form a root system that can conduct a mechanism to maintain soil water balance. The water footprint system was only active at the surface zone (0–0.8 m), while deeper than 0.8 m it was more affected by local aquifer condition.
HEALTH TESTING OF DISTRIBUTED PADDY SEEDS IN BENGKULU BY USING THE SEEDLING SYMPTOM TEST Tunjung Pamekas; Supanjani Supanjani; Dian Lumbantungkup
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 24 No 1 (2022)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.24.1.14-18

Abstract

[PENGUJIAN KESEHATAN BENIH PADI YANG BEREDAR DI BENGKULU DENGAN  METODE SEEDLING SYMPTOM TEST].   Pertumbuhan dan hasil panen padi di lapangan sangat ditentukan oleh kesehatan benih padi.  Tujuan dari penelitian ini adalah mengevaluasi kesehatan benih padi yang beredar di Bengkulu dengan metode seedling symptom test.  Penelitian disusun dalam Rancangan Acak Lengkap  dengan perlakuan 6 varietas padi (Gorendra, Raja Lele, Inpari 6, Inpari 30, Sintanur dan Mekongga)  dan diulang 5 kali.  Benih padi diambil dari Balai Pengkajian Teknologi Pertanian Dinas Pertanian, Propinsi Bengkulu dan Balai Pengawasan dan Sertifikasi Benih Propinsi Bengkulu. Metode yang digunakan adalah seedling symptom test dengan menumbuhkan benih padi pada media pasir steril selama 30 hari. Varietas Sintanur menunjukkan masa inkubasi terlama namun varietas Gorendra menunjukkan persentase serangan dan intensitas serangan Curvularia sp terendah.  Varietas Gorendra juga menunjukkan jumlah daun, berat brangkasan basah, dan panjang akar yang paling baik, sementara tinggi tanaman dan  waktu kemunculan bibit menunjukkan hasil yang sama dari ke-6 varietas padi.  Penulis menyimpulkan bahwa varietas Gorendra adalah benih padi yang paling sehat dan memiliki tingkat pertumbuhan bibit yang paling baik.
EFFECTIVENESS OF VERMICOMPOST IN SUBSTITUTING UREA FOR PROMOTING GROWTH AND YIELDS OF MUNG BEAN (Vigna radiata L.) IN ULTISOLS Evendi Tri Mulyono; Hesti Pujiwati; Fahrurrozi Fahrurrozi; Bambang Gonggo Murcitro; Supanjani Supanjani; Hasanudin Hasanudin
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 1 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.1.19-26

Abstract

Vermicompost is one of increasingly applied organic fertilizer to many vegetable crops in order to reduce the dependency on synthetic fertilizer, including the use of urea as nitrogen source. This experiment aimed to determine the best dosage combination of vermicompost and synthetic urea on growth and yields of mung bean grown in Ultisols. This experiment was arranged in a randomized complete block design  with three replicates. Treatments consisted of  (1) control, no urea and no vermicompost, (2) 50 kg/ha urea + no vermicompost, (3) 40 kg/ha urea + 3 Mg/ha vermicompost, (4) 30 kg/ha urea + 6 Mg/ha vermicompost, (5) 20 kg/ha urea + 9 Mg/ha vermicompost, (6) 10 kg/ha urea + 12 Mg/ha vermicompost, and (7) 0 kg/ha urea + 15 Mg/ha vermicompost.  Results indicated that the combination of urea and vermicompost increased plant height, leaf number, branch number, number of nodules/plant, shoot to root ratio, number of pods/plant, number of pods/plot, grain dry weight/plant, grain dry weight/plot, and total yield /ha, but not days to flowering and weight of 100 grains. The best combination to increased growth and yields of mung bean was 12 Mg/ha of vermicompost in combination with 10 kg/ha of urea.  This combination  produced the highest grain yields/ha (2.1 Mg/ha).   
Co-Authors Abimanyu Dipo Nusantara Ariya Listari Atra Romeida Bambang Gonggo Murcitro Bambang Gonggo Murcitro Bustaman, Hendri Dhini, Debby R Dian Lumbantungkup Djamilah Djamilah Eko Suprijono Evendi Tri Mulyono Fahrurrozi, Fahrurrozi Hasanudin Hasanudin Hermansyah Hermansyah Heru Widiyono, Heru Hesti Pujiwati Hindarto, Kanang Setyo Marwanto Marwanto, Marwanto Merakati Handajaningsih Muhammad Faiz Barchia, Muhammad Faiz Nabella, Reni Nafisah, Dio Nugraha, Andronicus Christian Rahayu, Hatari Rahayu, Hatari Riska Ekawita Sukarjo, Entang Inoriah Sumardi Sumardi Tunjung Pamekas Umi Salamah Widodo Widodo Widodo Yanda, Yusrian S.O. Yazid Ismi Intara Yulian, Yulian Yulian, Yulian Zulbahrum Caniago