Articles

PENGARUH MEDIA TANAM DAN PEMUPUKAN TERHADAP PERTUMBUHAN BIBIT JAMBU BIJI (PSIDIUM GUAJAVA L.) UNTUK BATANG BAWAH EKADANA, I KADEK; RAI, I NYOMAN; WIJANA, GEDE
Agrotrop: Journal on Agriculture Science Vol 7 No 2 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2017.v07.i02.p07

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Effects of Plant Media and Fertilization on The Growth of Guava Seed (Psidium Guajava L.) for The Under Stem. The availability of the rootstock with good growth very important in the Propagation of guava. Improvement of the factors that affect the growth of guava seedlings for rootstock needs to be done to spur its growth. The alternative that can be done is to improve vegetative growth by choosing the right planting medium and good fertilization. The research was conducted on farmers farm located in Banjar Tiyigan, Pelaga Village, Petang, Badung, Bali. The study used factorial randomized complete block design (RCBD). The first factor planting media consists of 4 levels i.e soil+sand, soil+sand+compost, soil+sand+rice husk and soil+sand+compost+rice husk. The second factor fertilization consisting of 3 levels i.e chemical fertilizer (NPK), liquid organic fertilizer (biourine) and NPK+biourine fertilizer, which were repeated 4 times. The results showed that there was no interaction between treatment of planting medium and fertilization. The treatment of planting media had significant effect on all observed variables, except for N and P leaf content. The treatment of fertilizer has a significant effect to the variation of leaf area, leaf plant and plant height. The best planting medium was found on mixed soil+sand+compost+rice husk with total dry weight of oven per plant 11.65 g very different from other media. Meanwhile for the treatment of NPK fertilizer added with biourine fertilizer gave the plant height of 29.04 cm is very different with other fertilizers.
ISOLASI DAN IDENTIFIKASI ENDOMIKORIZA INDIGENUS PADA PERAKARAN SALAK DI KABUPATEN KARANGASEM DAN PERBANYAKANNYA DIPUTRA, I MADE MARTANA; RAI, I NYOMAN; DHARMA, I PUTU
Agrotrop: Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2018.v08.i01.p07

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Isolation and Identification of Endomycorrhizal Indigenous on Salak Rhizosphere in Karangasem Regency and its Propagation. This research aimed to determine and obtain AMF indigenus isolates and their propagation at different levels of soil water content. This research used Completely Randomized Design with 2 Factors. The first factor was location of soil sampling, consisting of 3 levels of treatment (Location 1, Location 2, and Location 3) and the second factor was soil water content consisting of 3 levels of treatment (100, 70, and 40% field capacity). The results of isolation and identification indicate that there were two genus of AMF found on salak rizosphere in Karangasem Regency, those were Glomus and Gigaspora with several different species in it. The percentage of root infection rate was 100% and was categorized very high. The result of AMF spore propagation showed that combination treatment of location 1 which sandy clay soil textured and 40% field capacity produced the highest spores i.e 2382 spores or rised 2282% from 100 spores which were inoculated.
KAJIAN FISIKO-KIMIA BUAH JERUK SIAM (CITRUS NOBILIS LOUR.) PADA PERBEDAAN TINGKAT KEMATANGAN SELAMA PENYIMPANAN ARYANTI, NI PUTU; SEMARAJAYA, COKORDA GEDE ALIT; SUKEWIJAYA, I MADE; RAI, I NYOMAN
Agrotrop: Journal on Agriculture Science Vol 7 No 1 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2017.v07.i01.p06

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Physico-Chemical Studies of Tangerine (Citrus nobilis Lour.) on the Differences Level of Maturity Fruits during the Storage Period. Tangerine (Citrus nobilis Lour.) is one of the citrus variety developed in Bali because of the high production and preferred by consumers. In Bali, the center of citrus fruit development is in Kerta village, district of Payangan, Gianyar since 2003. The randomized block design with a single factor was used, with 4 treatments of fruit maturity level and 6 replications. The purpose of this study to determine the level of maturity of citrus fruit based on proper skin color of the fruit to be harvested and to determine the effect of maturity based on the skin color of the fruit, the physico-chemical changes of citrus fruit during storage. The harvest stage of the treatment were 217 days after dormancy (Tk1), 231 days after dormancy (Tk2), 245 days after dormancy (Tk3), and 255 days after dormancy (Tk4). The results showed that the highest shrink in diameter was 0,58cm (Tk1) whereas, the highest weight loss subjectly 19,98% (Tk4) and subjectly towards to the highest water content loss, but also subjectly with lowest levels of vitamin C reduction to 11.87% and the highest of total soluble solit (TSS) increase to 3.29 (oBrix). The indicators preferred by the panelist were neutral according to color, flavour, taste and overall appearance. The good storability for citrus at Tk2 with low damage.
ECOTOURISM MANAGEMENT STRATEGY TO SUPPORT ENVIRONMENTAL CONSERVATION IN MOKWAM AREA, MANOKWARI REGENCY, WEST PAPUA Sapary, Fina Elziana; Rai, I Nyoman; Sunarta, I Nyoman
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2017.v11.i02.p06

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Mokwam Area is one of the ecotourism objects in Warmare District, Manokwari Regency, West Papua Province. Whilst, it has a wide variety of endemic flora and fauna, ecotourism of Mokwam is also rich in herbs used by indigenous Mokwam known as Arfak tribe. The aim of this study were: 1) to identify the potential of ecotourism in Mokwam Area, 2) to better understanding constraints in ecotourism management supporting environmental preservation in Mokwam Area, and 3) to determine the ecotourism management strategies in favor of Mokwam environmental preservation. Data collection techniques of this research were observation, interview and documentation. The collected data was analysed by using qualitative descriptive and SWOT analysis. The SWOT is used to frame ecotourism management strategy by identifying internal and external factors. The results shows that the ecotourim potential of Mokwam area is a beautiful natural scenery, as well as biodiversity of flora and fauna. The potential attracted endemic faunas of Mokwam ecotourism is a variety of Birds of Paradise (Burung Cenderawasih) which are Cenderawasih Raja (Western Parotia), Cenderawasih Bela Rotan (Magnificent Bird of Paradise), Cenderawasih Ekor Panjang (Arfak Astrapia), Cenderawasih Buff-tailed sicklebill, Cenderawasih Long-tailed paradigala, Cenderawasih Black Sicklebill, as well as Namdurpolos Clever Bird (Vogelkop Bowerbird). Several considerable constraints in managing Mokwam ecotourism considering the environmental conservation is shifting cultivation method implementing by Arfak tribe. This method would potentially exterminate the forest as a habitat of the endemic flora and fauna if there is an increase in population, hot mix road access to Mokwam areas has still not been available and lack of cooperation between villages in Mokwam Area. The strategies based conservation concept in managing Mokwam ecotourism are promoting Mokwam potential ecotourim to the outside audiences; preserving the local wisdom of igya ser hanjob in order to protect the forests which are the habitat of endemic flora and fauna; improving road access to Mokwam Area; conducting comparative studies to similar tourism objects; establishing effective cooperation with other available tourism objects around Mokwam Area; empowering Arfak community about ecotourism management so that the community competitiveness   towards other ecotourism areas could potentially be realised.  Keywords: Ecotourism, biodiversity of flora and fauna, management strategy, local wisdom  
PENGARUH PENAMBAHAN LUMPUR AKTIF PADA BIOFILTER ANOKSIK-OKSIK DALAM MENURUNKAN KADAR AMONIA AIR LIMBAH RUMAH SAKIT Dewi, Wayan Trisna; Budiarsa Suyasa, I Wayan; Rai, I Nyoman
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 13 No 1 (2019)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2019.v13.i01.p06

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Development of the population and the increasing demand for health services has led to the increase in the number of hospitals, both government hospital and privet hospitals. The presence of ammonia as a result of protein decomposition can be toxic in the waters. The application of anoxic-oxic biofilter system is an attempt to be able to reduce ammonia levels in hospital wastewater. In the process of anoxic-oxic biofilter, contact occurs between the gravel media and microorganism to form biofilms which can accelerate the degradation of organic matter and the nitrification process. This study aims to obtain the best activated sludge source in reducing ammonia levels of wastewater applied to the anoxic-oxic biofilter system applied. This research was contucted in two stages in which the first stage of active mud nursery was carried out from three sources, namely WWTP Wangaya Hospital Denpasar, WWTP of PTN Hospital Udayana University and WWTP of Bangli Hospital for six days. At this stage a Mixed Liquor Volatile Suspended Solid (MLVSS) value is measured which shows the growth rate of biomass in activated sludge. The second stage is applivation of avtivated sludge and control to the anoxic-oxic biofilter system to reduce ammonia levels in hospital wastewater for five days of processing. This study use a randomized block design with four treatments and three replication. The results showed that the best activated sludge was obtained through nursery from WWTP of Wangaya Denpasar Hospital which was shown by the highest biomass growth (MLVSS Value) of 2433.3 mg/L and the highest reduction in ammonia reached a final level of 0.53 mg/L. The levels of effectiveness of the process of decreasing ammonia levels by 94.70% and has been able to pass the specified quality standard effectiveness percentage (90%) for five days of processing. The value of this effectiveness is the highest compared to the controls and other activated sludge treatment.
STUDI ANALISIS KUALITAS AIR DI DAERAH ALIRAN SUNGAI PAKERISAN PROVINSI BALI asrini, ketut; Sandi Adnyana, I Wayan; Rai, I Nyoman
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 11 No 2 (2017)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2017.v11.i02.p01

Abstract

Pakerisan watershed is used by the people for various purposes to meet the daily needs for water and it is also for irrigation water. The aim of research was to determine the water quality related to human activities and the pollution index. Water sampling was conducted in the nine sample points i.e. upstream of two sample points, in the middle of four sample points, and in the downstream of three sample points. Sampling was done by purposive sampling. Determination of water quality was carried out by comparing the measured data of each parameter of water with the value of quality standards based on the Bali Governor Regulation Number  08 of 2007, while the definition of the status of water quality was done by the pollution index method. The results showed that the activities that affect the water quality physically, chemically and biologically at the upstream to downstream are farming activities, settlements, tourism and trade. In the upstream showed no parameters that exceeded the quality standards, the variables of BOD, COD, phosphate, fecal coli and total coli exceeded the quality standards and in the downstream,  the BOD, fosfat and  fecal coli exceeded the quality standards. The pollution index found in the upstream region good condition, whereas in the middle was classified as heavily polluted until the downstream  was lightly polluted.
IDENTIFIKASI DAN TELAAH PEMANFAATAN SUMBER DAYA GENETIK BUAH-BUAHAN LOKAL UNTUK MENINGKATKAN INTEGRASI PERTANIAN DAN PARIWISATA DI BALI Rai, I Nyoman; Wijana, Gede; Sudana, I Putu; Wiraatmaja, I Wayan; Semarajaya, C. G. A.; Alit Astiari, Ni Komang
Jurnal Hortikultura Indonesia Vol. 7 No. 1 (2016): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.483 KB) | DOI: 10.29244/jhi.7.1.31-39

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ABSTRACTThe rapid growth of tourism in Bali raises new issues i.e. the decline of the agricultural sector. A model of development of integration of agriculture and tourism is required to avoid further imbalance in the development of tourism and agriculture. The objective of this study was to identify and study utilization of genetic resources of local fruits in order to improve agricultural and tourism integration. The research was conducted from March to December 2015 throughout regencies in Bali, using survey method to identify the species and sub-species of local fruits, its utilization, harvest time, and superior fruits of each regency. Definition of local fruit in this study is all species and sub-species of fruit plant found in Bali, either cultivated or wild. The results showed that there were 41 species with 149 sub-species of local fruits identified. Availability of local fruits was generally still seasonal. The harvest season was dominant from December to March. Fruits were used for local consumption, exports, inter island trade, and material for rituals and culture and for tourism market. Utilization of local fruit for tourism was still limited, i.e for fresh fruit consumption (snake fruit, wani, banana, mango, orange, papaya, water melon, melon and mangosteen), for juice (passion fruit, manggo, melon, water melon, guava, strawberry, wani); raw material for wine (snake fruit, grape), raw material for massage/Spa (lemon, pineapple, avocado, papaya, strawberry, star fruit), and for agrotourism object (strawberry, snake fruit, orange and mangosteen). We suggested that effort was required to increase the utilization of local fruits for tourism activities so that it increased the welfare of the farming community in Bali.Keyword: genetic resources, local fruit, integration, agriculture, tourismABSTRAKPesatnya perkembangan pariwisata di Bali memunculkan masalah baru yaitu semakin terdesaknya sektor pertanian. Untuk menghindari semakin tidak seimbangnya antara sektorpariwisata dan pertanian dikembangkanlah model pembangunan pertanian terintegrasi dengan pariwisata. Penelitian ini bertujuan melakukan identifikasi dan telaah pemanfaatan sumber daya genetik buah-buahan lokal untuk meningkatkan integrasi pertanian dan pariwisata. Penelitian dilakukan dari Maret sampai Desember 2015 di seluruh kabupaten di Bali, menggunakan metode survei untuk mengidentifikasi spesies dan sub-spesies sumber daya genetik buah-buahan lokal, pemanfaatannya, musim panen, dan buah unggulan kabupaten. Batasan buah lokal dalam penelitian ini adalah semua spesies dan sub-spesies buah-buahan yang ada di Bali, baik dibudidayakan atau liar. Hasil penelitian menunjukkan teridentifikasi sebanyak 41 spesies dan 149 sub-spesies buahbuahan lokal. Lokasi tumbuhnya sebagian besar tersebar hampir di seluruh kabupaten/kota di Bali seperti jeruk Bali, salak, pisang, wani, mangga, manggis, durian, jambu biji, dan nangka, tetapi adayang hanya dibudidayakan atau tumbuh pada lokasi spesifik tertentu seperti stroberi, kawista, anggur, leci, dan mundu. Ketersediaan buah umumnya masih bersifat musiman, dengan musim panen dominan dari Desember sampai Maret. Produksi buah-buahan lokal Bali dimanfaatkan untuk konsumsi lokal, komoditas ekspor, perdagangan antar pulau, keperluan ritual adat dan budaya, dan pasar pariwisata. Pemanfaatan untuk pariwisata masih relatif terbatas, meliputi: (1) hasil buah untukkonsumsi segar (fresh fruit) seperti salak, wani, pisang, mangga, jeruk, pepaya, semangka, melon dan manggis; (2) hasil buah untuk bahan juice (markisa, mangga, melon, semangka, stroberi, wani); (3) hasil buah untuk bahan wine (salak, anggur), (4) bagian buah, daun, atau bagian lainnya untuk massage/spa (jeruk lemon, nenas, avokad, pepaya, stroberi, belimbing wuluh); dan (5) kebun buah untuk agrowisata (stroberi, salak, jeruk, dan manggis). Berdasarkan hasil penelitian ini perlu ada upaya nyata meningkatkan pemanfaatan buah-buahan lokal untuk pariwisata agar kesejahteraan petani buah-buahan semakin meningkat.Kata kunci: buah lokal, integrasi, pariwisata, pertanian, sumber daya genetik
RESPON PEMUPUKAN TERHADAP HASIL DAN KUALITAS BUAH JAMBU BIJI KRISTAL (PSIDIUM GUAJAVA L. CV. KRISTAL) SUAMBA, I WAYAN; RAI, I NYOMAN; WIJANA, GEDE
Agrotrop: Journal on Agriculture Science Vol 7 No 2 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2017.v07.i02.p02

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Response of Fertilization on Yield and Quality of Guava (Psidium guajava L. cv. ?Kristal?). Grower of ?Kristal? guava (Psidium guajava L. cv Kristal) in Bali have not adopted good agriculture pratices (GAP) yet. Hence, it?s yield and quality has been low. The purpose of this study was to evaluate yield and quality of ?Kristal? guava in response to fertilization. The experiments was arranged in Randomized Block Design (RBD) with eighteen replications. The treatments were P0 (organic fertilizer 5 kg), P1 (organic fertilizer 5 kg, Urea 250 g, TSP 300 g, KCl 300 g, and Gypsum 500 g) and P2 (organic fertilizer 5 kg, Urea 250 g, TSP 300 g, KCl 300 g, and Gypsum 500 g /plant, Zn and Cu (0,4%)). The result indicated that the maximum fruit weight per plant (15,22 kg) and fruit number per plant (55,56 fruit) were found on fertilizer with organic fertilizer 5 kg, Urea 250 g, TSP 300 g, KCl 300 g, and Gypsum 500 g , Zn and Cu (0,4%) (P2). The maximum fruit diameter (8,27 cm) and fruit weight per fruit (273,55 g) were also found on fertilizer with organic fertilizer 5 kg, Urea 250 g, TSP 300 g, KCl 300 g, and Gypsum 500 g , Zn and Cu (0,4%).
PENGARUH KONSENTRASI ANTITRANSPIRAN CHITOSAN TERHADAP PEMBUAHAN DAN PRODUKSI SALAK GULA PASIR DI LUAR MUSIM SUNARKA, I KETUT; RAI, I NYOMAN; KARTINI, NI LUH
Agrotrop: Journal on Agriculture Science Vol 5 No 1 (2015)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

The Effect of Antitranspirant Chitosan Consentrantions to Fruit-Set and Production ff Salacca zalacca var. Gula Pasir on Off-Season. Salak Gula Pasir (Salacca zalacca var. Gula Pasir) naturally flowering once every three months or four times a year. During the four times flowering, the best harvest or fruit production only once a year while the other three flowering are failed become a fruit-set. The failure was caused by rainfall and low rainy time. This research aimed to know the effect of several Antitranspirant Chitosan Consentrations to the success of flower to become a fruit (fruit-set) on Salacca zalacca var. Gula Pasir. This research used random sampling where the area was divided into four Antitranspirant Chitosan Consentrations. The factor of Antitranspirant Chitosan Consentrations consists of four levels (0%, 15%, 30%, and 45%). The research was conducted at the central production of Salacca zalacca var. Gula Pasir in Sibetan Village, Bebandem District, Karangasem Regency. The result of giving Antitranspirant Chitosan Consentrations at 45% was effective improved the success of flower to become a fruit-set of 64,48% on Gadu Season while on Sela II Season it effective improved 84,38% at the 30% consentrations.
UJI EFEKTIFITAS ENDOMIKORIZA INDIGENUS TERHADAP PERTUMBUHAN TANAMAN JAGUNG (ZEA MAYS L.) LELE, ONESIMUS KE; RAI, I NYOMAN; SUADA, I KETUT
Agrotrop: Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2018.v08.i01.p03

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The Effectiveness Test of Indigenous Endomycorrhiza on Maize Plant Growth (Zea mays L.). Efforts to increase crop productivity were hampered due to various obstacles such as genetic, environmental, and biotic factors, in order that alternative technologies such as endomycorrhizal biological agents were required. This study was aimed to determine the effectiveness of indigenous endomycorrhiza for the growth of maize. The experiments were carried out in the laboratory and greenhouse. The field experiment was designed in a nested randomized block design. The first factor was genus of indigenous endomycorrhiza (M) consisting of 3 lavels i.e genus Glomus (G), genus Gigaspora (F) and the mixed genus (C), the second factor was the spore dose (D) consisting of 3 levels i.e. D1 = dose of 50 spores, D2 = 100 spores and D3 = 150 spores. The genus Glomus was able to increase the weight of fresh and dry oven total stalk, the number of leaves and the height of the plants and those significantly higher than that of the genus of Gigaspora and the mixed genus. Spore doses (50, 100 and 150 spores) of the genus Glomus and the genus Gigaspora and mixture gave no significant different results on all observed variables.
Co-Authors Adnya Antari, Ni Putu Giyan Agus Sutanto Alit Astiari, Ni Komang ANELIA REZKINA BR.S, ANELIA REZKINA ARYANTI, NI PUTU asrini, ketut Bambang S. Purwoko Bambang Sapta Purwoko C G A Semarajaya C. G. A. Semarajaya, C. G. A. C.G.A. Semarajaya, C.G.A. COKORDA GEDE ALIT SEMARAJAYA Deni Suwardhi DEWI, NI KADEK EMA SUSTIA Dewi, Wayan Trisna DIPUTRA, I MADE MARTANA Dwiyanti, Rindang EKADANA, I KADEK ENIEK KRISWIYANTI Fenny M. Dwivany Fitriani, Yuyun G Wijana GEDE WIJANA I Gede Rai Maya Temaja I Gusti Alit Gunadi I Gusti Ngurah Santosa I KADEK DWI MAHARDIKA I KETUT SUADA I KETUT SUNARKA, I KETUT I Made Sudana I Made Sukewijaya I Nyoman Dibia I NYOMAN GEDE ASTAWA I NYOMAN GEDE USTRIYANA I Nyoman Sunarta I PUTU DHARMA I PUTU SUDANA I Wayan Budiarsa Suyasa I WAYAN EKA SAPUTRA, I WAYAN EKA I Wayan Nuarsa I Wayan Sandi Adnyana I WAYAN SUAMBA I WAYAN WIRAATMAJA I WAYAN WIRATMAJA I.G.K. Dana Arsana, I.G.K. I.W. Wiraatmaja, I.W. IDA AYU ASTARINI IDA AYU MAYUN Ida Ayu Putri Darmawati IGK Dana Arsana, IGK Dana KESUMADEWI, ANAK AGUNG ISTRI Ketut Wikantika Kiuk, Yosni Latifah K. Darusman LATIFAH KOSIM DARUSMAN LELE, ONESIMUS KE Luh Kartini Made Sudiana Mahendra Mahardika, Ida Bagus Komang MAHENDRA, I GEDE JAYA Meitha, Karlia Ngurah Gede Astawa, Ngurah Gede Ni Komang Alit Astiari, Ni Komang Alit NI LUH KARTINI, NI LUH Ni Nyoman Ari Mayadewi Ni Putu Anom Sulistiawati, Ni Putu Anom NK Alit Astiari, NK Alit Praborini, M. PRATAMA, I PUTU DIAN Putu Suwardike RINDANG DWIYANI ROEDHY POERWANTO Roedy Poerwanto Sapary, Fina Elziana SUDARMIKA, I GEDE Utami Utami WEDAGAMA, NGAKAN MADE ADI