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INDONESIA
SIMBIOSIS
Published by Universitas Udayana
ISSN : 23377224     EISSN : 26567784     DOI : 10.24843/simbiosis
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 155 Documents
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PREFERENSI MAKAN KUMBANG KOKSI (Epilachna admirabilis) PADA BEBERAPA TANAMAN SAYURAN FAMILI SOLANACEAE Kompyang Bagus Suyoga; Ni Luh Watiniasih; Ni Made Suartini
SIMBIOSIS Vol 4, No 1 (2016)
Publisher : Jurusan Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.498 KB)

Abstract

Plant cultivation has been commonly practiced, particularly vegetable plants, such as eggplant, tomato and chili.However, many problems are persisted that is the pest attack. Epilachna admirabilis (Coleoptera) is one pest that commonlyattack vegetable plants. Many techniques have been applied to avoid this pest, but the result has not been in satisfantion. Thisstudy aimed to investigate the feeding preference of E. admirabilis, hence, the timing of eradication of this pests will beunderstood. This study was conducted in the Ecology Laboratory, Department of Biology, Mathematic and Natural ScienceFaculty, Udayana University on three different vegetable leaves, namely: the leaves of eggplant, tomato and chili. The resultsshowed that, based on the time of arrival and leaf consumed on each type of plant leaves, E. admirabilis chose the leaves ofeggplant and tomato first compared to chili. Epilachna admirabilis tend to consume the leaves of eggplants compared totomato, and there was no chili leaves has been consumed by this beetles.Keywords: eggplant, tomato, chili, pest, Epilachna admirabilis
UJI VIABILITAS SERBUK SARI SECARA In-Vitro KELAPA (Cocos nucifera L.“Rangda”) DENGAN WAKTU DAN SUHU PENYIMPANAN YANG BERBEDA Sista Nirmala; Eniek Kriswiyanti; AA. Ketut Darmadi
SIMBIOSIS Vol I, No 2, Tahun 2013
Publisher : Jurusan Biologi Universitas Udayana

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Abstract

This aims of the research was to determine the structure and pollen viability of RangdaCoconut (Cocos nucifera L. “Rangda”) stored at different time and temperatures. Pollen sampleswere collected from Gianyar, Klungkung and Negara. The experiment was conducted at theLaboratorium of Forensic and the Laboratorium of Plant Development and Structure, UdayanaUniversity, from October 2012 to January 2013. Pollen structure was analyzed with acetolysemethod, while pollen viability was analyzed in-vitro. The results showed that the structure of thepollen of “Rangda” coconut was circular, media, monosulcate, Subferoidal-Prolat, Sferoidal.Pollen viability of “Rangda" coconut was low (less than 3%). Pollen stored in the freezer has thebest viability, which continually increased until the 2nd weeks, then declined after that, whiepollen viability stored at room temperature tend to decline up to the fourth weeks.Keywords: structure, viability, pollen, time, storage
POPULATION DYNAMICS OF JAVAN HAWK-EAGLE IN GUNUNG PICIS AND GUNUNG SIGOGOR NATURE RESERVE AREAS Gunawan .; Tri Wahyu Widodo; Fajar DNA; , Imran Jamil; Danafia Permana
SIMBIOSIS Vol 8 No 1 (2020)
Publisher : Jurusan Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.383 KB) | DOI: 10.24843/JSIMBIOSIS.2020.v08.i01.p02

Abstract

Javan Hawk-Eagle is one of priority species which is natural population need to increase 10 percent, so that BBKSDA East Java chooses the monitoring site to monitor this species dynamic population. The observations which conduct in Gunung Picis and Gunung Sigogor Nature Reserve Areas for seven days in every years on July-August since 2013 until 2018 shows that Javan Hawk-Eagle population in those areas has been increase. The population increase show by juvenile individual and finding the species in new locations.
EKSPLORASI SPATIAL DAN IDENTIFIKASI CENDAWAN ENDOFIT PADA TANAMAN KAKAO (Theobroma cacao L.) DI BALI Lilis Riana Tambunan; Meitini Proborini; Putu Adriani Astiti
SIMBIOSIS Vol 6 No 1 (2018)
Publisher : Jurusan Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.428 KB) | DOI: 10.24843/JSIMBIOSIS.2018.v06.i01.p01

Abstract

Cocoa plant (Theobroma cacao L.) can grow well in the highlands and lowlands, a plantation and industrial plantwhich is known as one of the export commodities, as raw material for the food and pharmaceutical industries which cancontribute to an increase in foreign exchange endophytic fungus is a fungus living on a live network of plants such asseeds, leaves, flowers, twigs, stems and roots. Truffles are generally mutualistic endophyte and is known to stimulate thegrowth of plants, capable of producing antibiotics and plant growth regulators (hormones). This study aims to determinethe diversity and identify endophytic fungi on Kakao.yang found in two different locations in Bali, in the village of KajaBuahan District of Payangan, Gianyar and the Village of Tua, Marga, Tabanan regency subdistricts. Research carried outin the field with the exploration methods, isolation, identification and diversity analysis conducted at the Laboratory ofPlant Taxonomy (Mycology), Department of Biology, Faculty of Mathematics, University of Udayana. Laboratoryresearch conducted by isolating the roots, leaves, plant stems and content of the soil (rhizosphere) cocoa. Once isolated,grown on PDA medium subsequently incubated at room temperature 250C. Isolates that grow back isolated and purifiedon a PDA medium for further identified to the genera or species level. A total of six isolates of endophytic fungi identifiedin the rhizosphere and cocoa plant that is where four of these isolates were identified to species, two isolates were notidentified until genus. Fungi were identified namely Aspergillus flavus, Rhizopus stolonifer, Cladosporiumsphaeropermum, Trichoderma viride, isolates 1 and 2 isolates.Keywords: cocoa, endophytic fungi, highlands and lowlands
KUALITAS SATE LILIT YANG BEREDAR DI PASAR TRADISIONAL KARANGASEM, BALI DITINJAU DARI Staphylococcus aureus I Gusti Ayu Laras Pratama Putri; Ida Bagus Gede Darmayasa; Ni Made Susun Parwanayoni
SIMBIOSIS Vol 3 No 2 (2015)
Publisher : Jurusan Biologi Universitas Udayana

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Abstract

This research aims to find out the quality of curled satay in terms of Staphylococcus aureusthat are spread around in the traditional markets of Karangasem, Bali. Samples of the curled satay were taken from the 4 regions in Karangasem (Selat, Rendang, Sidemen, and Seraya), every region takes 1 traditional market and every market are owned by 2 salesman. The method used in this study is the method of Platting Method (Pelczar and Chan, 2005).  The results shows that the highest of curled satays in traditional markets of Karangasem is found in S. aureusbacteria was obtained for up to 73 x 102 CFU/g found in Sinduwati market, Sidemen on salesman 1 and 57 x 102 in Seraya Tengah market, on salesman 1. Based on the tests that has been done shows that a number of curled satay sold in traditional markets of Karangasem, Bali has exceeded the threshold amount Indonesian National Standard. The maximum lilit of microbial impurities in satay ready consumption for S. aureusbased on Indonesian National Standard is 102CFU/g. Keywords :Curled satay,Platting Method, Staphylococcus aureus, traditional market
GROWTH OF SEVERAL SPECIES OF MANGROVE SEEDLINGS AS SEEDS READY FOR PLANTING IN, KARHUTLA CENTRE OF JAVA, BALI, AND NUSA TENGGARA I Ketut Endra Primantara; A.A.Ketut Darmadi; I Ketut Ginantra
SIMBIOSIS Vol 7 No 1 (2019)
Publisher : Jurusan Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (769.359 KB) | DOI: 10.24843/JSIMBIOSIS.2019.v07.i01.p02

Abstract

Mangrove forests have important role in coastal ecosystems, for example to overcome marine abrasion, bird nesting sites, forming ecological balance, capturing and localizing sediments, preventing soil acidity and inhibiting sea water intrusion. The success of mangrove reforestation is largely determined by the success in preparing mangrove seedlings. Nursery beds made of bamboo to accommodate 4 species of mangrove seedlings, that are Bruguiera gymnorrhiza, Rhizopora apiculata, Rhizopora mucronata and Rhizopora stylosa with 6 replications and each of 3 individuals of each type. The variables measured were plant height, number of leaves and stem diameter. Statistical analysis with the Costat & Co. program The results showed that the average growth of stem height from the 4 mangrove seedlings measured from 6 -13 MST was 1.5 cm, 1.4 cm, 0.8 cm and 0.7 cm respectively. The average number of leaves from the 4 mangrove seedlings were 0.6, 1.2, 0.6, and 0.6 strands respectively and the average stem diameter of the 4 mangrove seedlings was 0.1 cm. The mangrove seedlings of Rhizopora mucronata and Bruguiera gymnorrhiza species that produced higher growth rates of stem height than others, and Bruguiera gymnorrhiza which produced the highest average number of leaves compared to the other three types. Keywords ; seedlings, mangroves, growth
PRODUKSI BIBIT KENTANG (Solanum tuberosum L.) G1 DARI STEK BATANG Putu Wina Andriani Lestari; Made Ria Defiani; Ida Ayu Astarini
SIMBIOSIS Vol 2 No 2 (2014)
Publisher : Jurusan Biologi Universitas Udayana

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Abstract

This research was conducted to find out the best media and auxin for plantingpotato cutting to produce G1 seed potato. Research was done at a shade house ofKebun Bibit Hortikultura Kembang Merta, Candi Kuning Village, Baturiti, TabananRegency, Bali. Were planted at the screen house for sprouting. Four weeks old ofshoots were used as cutting. Each cutting measured 10 cm. Stem cutting of G0 seedpotatoes was dipped in 2 different auxin types (Rootone F and auxin paste) and plantedin 2 different media (manure and charred rice husk). Results shows that the bestcombination between media and auxin for stem cutting growth was charred rice huskand Rootone F, in which 82.29% growth was recorded. Combination between charredrice husk and Rootone F produced 12 more seed potatoes per plant, compared to othertreatment combination. In term of seed potato size, the highest number produced (80%)was size SS (<20 gram) , followed by size S (21-30 gram) which is 66%, size M (31-60gram) which is 8% and size L (>60%) of 2%.Keyword : Potato (Solanum tuberosum L.), stem cuttings, seed production.
STRUCTURE AND COMPOSITION WEED OF RICE-FIELD(Oryza sativa L.) IN CEMPAGA VILLAGE BANGLI DISTRICT, BANGLI Ida Ayu Gede Sutha Windari Subagia Putri; Martin Joni; I Ketut Sundra
SIMBIOSIS Vol 9 No 1 (2021)
Publisher : Jurusan Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.623 KB) | DOI: 10.24843/JSIMBIOSIS.2021.v09.i01.p05

Abstract

INTISARI Keberadaan gulma pada tanaman padi akan menyebabkan penurunan produksi apabila gulma tidak dikendalikan secara efektif, karena dapat mempengaruhi pertumbuhan dan menurunkan produksi tanaman pangan. Penelitian ini bertujuan untuk mengetahui keanekaragam jenis gulma yang tumbuh pada tanaman padi (Oryza sativa L.) di Desa Cempaga, Kecamatan Bangli, Kabupaten Bangli, mengetahui jenis gulma yang tumbuh pada tanaman padi (Oryza sativa L.), dan jenis gulma apakah yang dominan pada tanaman padi (Oryza sativa L.). Penelitian ini dilaksanakan di Desa Cempaga Kecamatan Bangli Kabupaten Bangli pada bulan Maret-Mei 2020. Pengumpulan data dilakukan dengan analisis vegetasi menggunakan metode kuadrat dengan cara random menggunakan lotre atau undi dimana pengambilan sampel dilakukan sebanyak tiga kali yaitu pada minggu ke-8, ke-10, dan ke-12 dengan interval waktu pengambilan yaitu sekali dalam 2 minggu sehingga jumlah sampel yang diambil setiap 2 minggu yaitu 15 plot dengan ukuran 1x1m, dan data yang diambil yaitu jenis gulma yang terdapat didalam plot. Hasil pengamatan keberadaan jenis gulma menunjukkan bahwa jenis-jenis gulma yang tumbuh di lokasi penelitian cukup bervariasi, terdapat 781 individu, 12 jenis dan 8 suku, dimana gulma yang paling banyak muncul di plot yaitu tumbuhan Pusut-pusut muncul di 23 plot dan memiliki dominansi relatif yaitu sebesar 49,31%, sedangkan gulma yang paling sedikit muncul yaitu Paku Rawa hanya muncul di satu plot dengan memiliki nilai dominansi relatif yaitu 0,00%. Dimana artinya tumbuhan yang paling berpotensi mengganggu tanaman pokok yaitu tumbuhan Pusut-pusut dengan pola penyebaran yang mengelompok. Nilai INP tertinggi terdapat pada jenis gulma Pusut-pusut dengan nilai sebesar 103.45%. Kata Kunci : Desa Cempaga, Gulma, Padi Sawah
PENGARUH EKSTRAK BUNGA FLAMBOYAN (Delonix regia Hook Raf) TERHADAP PERKECAMBAHAN DAN PERTUMBUHAN CABAI MERAH BESAR (Capsicum annuum L.) Royana Pakpahan; Ni Putu Adriani Astiti; I.G.A. Sugi Wahyuni
SIMBIOSIS Vol 5 No 1 (2017)
Publisher : Jurusan Biologi Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (516.152 KB) | DOI: 10.24843/JSIMBIOSIS.2017.v05.i01.p04

Abstract

The reach aim to the effect of flamboyant (Delonix regia Hook Raf.) flower extract on the growth of large red pepper plant (Capsicum annuum L.), for use a land under of flamboyant trees. The research design used was Random Block Design, with five treatments extract concentration, control, 5%, 10%, 15%, and 20%, each treatment was repeated five time. Observations were made during the 15 weeks. The results showed the percentage of germination and plant height are effect significant, while the number of leaves, root length and dry weight of the plant does not provide effect for the growth of large red pepper plant. Keywords : flamboyant, allelopathy, large red pepper
STRUKTUR MORFOLOGI TANAMAN TEBEL-TEBEL YANG TUMBUH PADA POHON RONTAL (Borassus flabellifer L.) DI KAWASAN BUMI PERKEMAHAN CEKIK TAMAN NASIONAL BALI BARAT Ni Made Dwi Sri Wulandari; Eniek Kriswiyanti
SIMBIOSIS Vol 2 No 1 (2014)
Publisher : Jurusan Biologi Universitas Udayana

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Abstract

This research was conducted to determine the morphological characteristics and thename of species tebel-tebel plant that grows on rontal trees (Borassus flabellifer L.) in CekikCampgrounds area of West Bali National Park. The method was used observation anddescription morphological character of plant parts along with species identification. Theresults showed tebel-tebel plant have the following characteristics: epiphytic plants, rootsticker, woody stems (lignosus), climbing with the twisted branches (scandens), oval leafshape (ovatus) until lancet (lanceolatus), bouquet of flowers bunches, petals 5, yellowishwhite, corona 5, base colored purple, pistil and stamens united to form ginostegium, fruittube, needle-shaped seed include spread instrument such as fine hairs, is a character trait ofthe species Hoya parasitica Wall.Keyword: morphology, identification, tebel-tebel

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