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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Hortikultura Indonesia (JHI) Agrotrop : Journal on Agriculture Science AGRITROP International Journal of Biosciences and Biotechnology Buletin Udayana Mengabdi Ecotrophic, Journal of Environmental Science E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Penelitian dan Pengembangan Pendidikan BIOTROPIA - The Southeast Asian Journal of Tropical Biology Plumula : Berkala Ilmiah Agroteknologi Jurnal Hortikultura Journal of Degraded and Mining Lands Management Agro Bali: Agricultural Journal Jurnal Bali Membangun Bali AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Nandur

I NYOMAN RAI

Agroecotechnology Study Program, Faculty Of Agriculture, Udayana University

Author-ID : 356556

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences Transportation Veterinary Other

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Upaya Meningkatkan Produksi dan Kualitas Buah Jambu Biji Kristal (Psidium guajava L. cv. Kristal) Melalui Pemupukan I GEDE JAYA MAHENDRA; I NYOMAN RAI; I WAYAN WIRAATMAJA
Agrotrop : Journal on Agriculture Science Vol 7 No 1 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

Efforts to Increase Production and Quality of “Kristal” Guava Variety (Psidium guajava L. cv. Kristal) by Fertilization. Nowadays “Kristal” guava variety (Psidium Guajava L. cv. Kristal) is very popular for consumers because it has several advantages such as flesh fruit is crunchy, sweet-sour taste with slightly seeds or seedless, and shelf life of fruit relatively long that can be up to 1 month if stored at temperature of 10-15 oC. The challenge faced by farmers are the production and fruit quality still low, due to inadequate maintenance done. This research was conducted to study the effect of fertilizer to increase the production and quality of “Kristal” guava variety. Research was carried out in farmers garden at Pelaga Village, District of Petang, Badung Regency, Bali, from April-November 2016. The study was a randomized block design (RBD) with fertilizer treatment consisted of 4 levels and each repeated 6 times. The results showed that fertilization increase production and quality of “Kristal” guava fruit compared to the control. The highest weight of fruit per plant (18.28 kg / plant) were obtained on plants fertilized with compost 5kg/plant + urea 200 g/plant + KCl 250 g/plant + TSP 250 g/plant + gypsum 500 g/plant+ micro fertilizer CuSO4 and ZnSO4 1.5 g/plant, respectively, given once at the beginning of the study and significantly different compared to the lowest weight of fruit per plant which obtained on controls (8.99 kg/plant). The highest fruit diameter (8.72 cm) obtained on plants fertilized with compost 5kg/plant + urea 200 g/plant + KCl 250 g /plant + TSP 250 g / plant + gypsum 500 g/plant + micro fertilizer CuSO4 and ZnSO4 each 1.5 g/plant, respectively, given three times i.e at the beginning of the study, at the phase of anthesis, and at the maturity of fruit and significantly different compared to control (7,50 cm).

Respon Pertumbuhan Bibit Salak (Salacca Zallaca) terhadap Dosis Spora Endomikoriza pada Media Pembawa Pasir Kuarsa dan Zeolit NI KADEK ARYANI; I NYOMAN RAI; NI NYOMAN ARI MAYADEWI
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Response of Salak Seedlings (Salacca Zallaca) Growth to Dosage of Endomycorrhizal Spore in Quartz Sand and Zeolite Carrier Media. This study aimed to study the effect of endomycorrhizal spore dosage and carrier media that were applied directly to the roots of salak plants. The research designed as factorisl by using Randomized Block Design with 2 treatment factors. The first factor was number of endomycorrhiza spores consists of 4 levels i.e 0, 75, 150, and 225 spores per 500 g carrier media per polybag, while the second factor was the type of carrier media consist of 2 levels i.e zeolite and quartz sand. The results showed that interaction between endomycorrhizal spore dosage with carrier media did not significantly influence the growth of salak seedlings. Endomycorrhizal spores in doses of 75, 150 and 225 spores per polybag increased root infection and leaf P nutrient content compared to control, but seed height, leaf area, shoot dry weight, root dry weight and total dry weight of seedlings not significantly difference. The zeolite carrier media caused root infection by mycorrhizal was higher than quartz sand media, but the P nutrient uptake and seedling growth were not significantly different. Based on the results of this study it is necessary to make a longer observation of the effect of endomycorrhizal spore doses and carrier media on the growth of salak seedlings.

Isolasi dan Identifikasi Endomikoriza Indigenus pada Perakaran Salak di Kabupaten Karangasem dan Perbanyakannya I MADE MARTANA DIPUTRA; I NYOMAN RAI; I PUTU DHARMA
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

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 Fisikokimia selama Penyimpanan Buah Jambu Biji (Psidium guajava L.) Varietas Kristal pada Perbedaan Teknik Budidaya dan Tingkat Kematangan Buah NI KADEK EMA SUSTIA DEWI; GEDE WIJANA; UTAMI UTAMI; I NYOMAN RAI
Agrotrop : Journal on Agriculture Science Vol 7 No 2 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

The Phycochemical Study of Kristal Guava (Psidium guajava L.) During Storage under Difference Cultivation Techniques and Fruit Maturity Levels. Kristal guava (Psidium guajava L.) is one of guava variety with high economic value, thick flesh and seedless. This research studied the effects of cultivation techniques and maturity level toward the physical and chemical characteristics of kristal guava during storage. Research was conducted at the farmland in Banjar Semanik, Pelaga, Badung and the storage was implemented in Postharvest Engineering Laboratory, Faculty of Agricultural Technology, Udayana University in April to December 2016. This study used a completely randomized design (CRD) with two factors and the treatments were repeated four times. The first factor was with 2 levels of cultivation techniques (non intensive and intensive) and the second factor was with 3 levels of maturity (green, light green and yellowish green). The results showed that there were interaction between cultivation techniques and maturity level toward the physical and chemical characteristic of kristal guava in average weight per fruit and the organoleptic test color of the fruit observed 9 day after storage. The highest average weight per fruit (248.33 g) was obtained from combined treatment of intensive cultivation techniques with the third maturity level which is yellowish green was significantly different with the lowest average weight per fruit (143.33 g) that was obtained from combined treatment of intensive cultivation techniques with the first maturity level which is green. The best combined treatment that affect the physical and chemical characteristics of kristal guava during storage is combined treatment in intensive cultivation techniques with the third maturity level which is yellowish green, but statistically not significantly different from non intensive cultivation technique.

Identifikasi dan Karakterisasi Sumber Daya Genetik Buah-buahan Lokal di Kabupaten Jembrana I PUTU DIAN PRATAMA; I GUSTI ALIT GUNADI; IDA AYU PUTRI DARMAWATI; I NYOMAN RAI
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Identification and Characterization of Plant Genetic Resources Local Fruits in Jembrana. Fruits are one source of nutritious food that have diverse functions such as: source of vitamins, minerals, and fiber needed in the daily menu. Fruits are used as community consumption, tourism needs, inter island trade, as well as for religious activities, even thoughthere are local fruit are used in “usadha”by generations. Jembrana Regency has various types of fruits. This study aims to identify the genetic resources of fruits in Jembrana Regency. This research was conducted in five stages: (1) collected secondary data, (2) surveyed the types of genetic resources and their distributions, (3) identification of morphological and agronomiccharacters, (4) determined superior fruit, and (5) compiled geographic map the distribution of genetic resources of local fruits. The result of research found 38 species and 53 sub-types of local fruit plants, with 6 types of superior fruit, 12 type of rare fruit, 17 types of fruit for upakara, and 9 types of fruits for medicine. Based on the survey conducted in Jembrana District, 41 geographical distribution maps of local fruits can be compiled.

Effectiveness of indigenous endomycorrhizal biofertilizer prototype on organic salak (Salacca zalacca) plantations and its effect on nutrient and carbohydrate content of leaves I Nyoman - Rai; I Ketut - Suada; I Wayan - Wiraatmaja; Ni Komang - Alit Astiari
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 28 No. 3 (2021): BIOTROPIA Vol. 28 No. 3 December 2021
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2021.28.3.1333

Organically cultivated salak (Salacca zalacca) on dry land had limited production in Bali. Typically, the fertilization was carried out using the leaves litter or other organic fertilizer because the fertility of the soil was low for salak plantations, and the nutrition for the tree was lacking. The present study aimed to analyze the effectiveness of indigenous endomycorrhizal biofertilizer prototype on salak plantations and its effect on the nutrient and total carbohydrate content of the leaves. The study used a randomized block design with nine replicates conducted at Sibetan village, Bebandem district, Karangasem regency, and Bali province. The treatment consisted of 3 levels, i.e., fertilization with leaf litters only as the farmersâ€™ way/control (C), fertilization with indigenous endomycorrhizae biofertilizer prototype (P), and combination fertilization with leaf litters and indigenous endomycorrhizae biofertilizer prototype (PM). The spores of indigenous endomycorrhizae were used for making biofertilizer prototype isolated from soil and root samples in salak producing areas, i.e. Sibetan village. The results showed that P and CP significantly increases the chlorophyll content of the leaf, relative water content of the leaves, and number and weight of fruit per tree in comparison to C. Treatments P and CP also improved the fruit quality by increasing of the sweetness and weight per fruit. Thus, the indigenous endomycorrhizae biofertilizers prototype has a positive effect on water uptake and nutrient absorption as indicated by high N and P on leaf tissue and high total sugar, R-sugar, and sucrose content of the leaves.Â Keywords: biofertilizer, endomycorrhizae, organic, prototype, salak

ANALISIS KUALITAS AIR DAN STRATEGI PENGENDALIAN PENCEMARAN DI DANAU BATUR MENGGUNAKAN ANALISIS FORCE-FIELD Ni Komang Ayu Septiani; I Wayan Budiarsa Suyasa; I Nyoman Rai
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
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.2022.v16.i01.p02

Batur is the largest lake in Bali which has the potential to experience pollution due to the high activity in the body and the surrounding environment. This condition indicates the need for serious management efforts to maintain water quality. This study aims at analysing the water quality, status of the water quality of Lake Batur and also formulate a strategy for controlling water pollution in Lake Batur. The water sample analysis method was carried out in two ways, namely in situ method and laboratory testing. The feasibility level of the results was matched with the Class 1 Water Quality Standard based on the Bali Governor Regulation number 16 of 2016, for the status of the water quality determined by the Pollution Index Method according to the Decree of the State Minister of the Environment No. 115 year 2003. In determining the control strategy, the force field analysis method was applied. The results of the study, there were several parameters that exceeded the quality standard ranging from 18.33-23 mg/l. In addition, the DO content at some points was also not classified as lightly polluted where the highest IP value is Brother with a value of 2.07. The pollution control strategy of Lake Batur produced based on force field analysis was increasing innovative socialization to the community, increasing the promotion of Lake Batur conservation, providing training and entrepreneurial skills as well as providing small-scale business capital assistance, synergizing government policies and programs and forming a pollution control unit. Keywords: water quality; pollution index; control strategy.

EFEKTIVITAS PEMANFAATAN KULTUR LOKAL DALAM BIOREAKTOR PENGOLAHAN AIR LIMBAH KERAJINAN ENDEK Ni Made Tia Juliasari; I Wayan Budiarsa Suyasa; I Nyoman Rai
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
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.2022.v16.i01.p03

Endek is one of the fabrics that are in demand by local and foreign people. The distinctive pattern of this endek cloth continues to develop while still paying attention to the authenticity of the endek motives from Bali so that it is easily recognized by the public, however, in its production, it produces waste that causes environmental pollution therefore it needs to be managed. One of the easy and efficient textile waste management is a bioreactor by utilizing local culture. Local cultures are indicated as indigenous microorganisms originating from the waste itself. The purpose of this study is to analyze the effectiveness of local cultures in bioreactors in improving wastewater quality and analyze the effectiveness of using local microbial cultures in bioreactors for treating endek wastewater. This study applied a quantitative approach with experimental methods. The processing begins with the growth of biofilms to determine the biomass profile using the Mixed Liquor Suspended Solid (MLSS) method, then the color waste water is stored in an anaerobic reservoir for 24 hours then tested and then processing, later it is inundated for 1 hour before parameter measurement. The parameters tested were COD levels, color content and pH. Based on the results of the study, the optimum MLSS value obtained in the seeding process was 4490 mg/L on the 7th day and the biofilm growth biomass profile of 3240 mg/L on the 22nd day. The utilization of local microbial culture in the bioreactor in this study was effective in reducing the color content parameter by 77% at processing times of 384 and 408 hours, and decreasing pH was only effective at processing time of 6 hours and reducing COD was not effective. Keywords : endek wastewater, local culture, bioreactor, effectivenes

ANALISIS DAYA DUKUNG MONKEY FOREST UBUD SEBAGAI DAYA TARIK WISATA BERKELANJUTAN Niken Prameswari Putri; I Nyoman Rai; A.A.P Agung Suryawan
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
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.2022.v16.i01.p09

Monkey Forest Ubud is located in the Padang Tegal Village, Ubud District. The area of ????the tourism forest is about 12.5 ha. Tourism activities at Monkey Forest Ubud tend to be mass tourism activities. This study aims to measure the position of the effective carrying capacity of Monkey Forest Ubud based on biotic and abiotic variables, perceptions of tourism actors (tourists and management) towards tourism activities, condition of facilities and infrastructure and management of Monkey Forest Ubud, as well as alternative strategies for the realization of environmental sustainability and tourism. The method used to analyze the carrying capacity of the environment according to Cifuentes, drafting alternative sustainable management strategies for Monkey Forest Ubud with QSPM analysis. The results of the carrying capacity analysis show the ECC of 257 people/day. The average tourist visit in 2010-2019 reached 1,784 people/day, exceeding the ECC value indicates a threat to the biotic and abiotic factors that affect it. Alternative strategies resulting from the QSPM analysis for the realization of sustainable tourism with a score of 4.88 are alternative tourism in the form of educational tours in the Yadnya forest and event procurement in non-forest areas, the second strategy with a score of 4.86 is to maximize the digital marketing function, namely buying tickets online with providing daily visit quotas for tourist restrictions, the third strategy with a score of 4.66 is to increase ticket prices by 50% from normal tickets.The existence of the Ubud Monkey Forest has a positive impact on the social and economic aspects of the Padang Tegal Village community, but environmental sustainability needs to be considered, one of which is the restriction of tourist visits. Keywords: carrying capacity, sustainable tourism, Quantitative Strategy Planning Matrix

RESPON PERTUMBUHAN TANAMAN PAKCOY (Brassica rapa L.) PADA BERBAGAI JENIS MEDIA TUMBUH DALAM SISTEM BUDIDAYA VERTIMINAPONIK I Nyoman Wahyu Ardianta; I Nyoman Rai; Ni Nyoman Ari Mayadewi
Plumula : Berkala Ilmiah Agroteknologi Vol 9 No 2 (2021): Plumula : Berkala Ilmiah Agroteknologi
Publisher : UPN VETERAN JAWA TIMUR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/plumula.v9i2.68

Vertiminaponics is a combination of plant cultivation (hydroponics) and fish cultivation (aquaculture) in one place/land arranged vertically. In the vertiminaponic system, the planting medium plays an important role as one of the determinants of plant and fish growth. The purpose of this study was to find the best growing media for pakcoy growth and yield and catfish growth and yield in the vertiminaponic system. This study used a randomized block design (RBD) with one factor, namely the planting medium consisting of four levels, i.e. broken bricks, malang sand, gravel and zeolite. The results showed that the planting medium of malang sand produced the highest total dry weight (12.42 g) and total fresh weight of pakcoy (240.72 g). The zeolite growing media gave the highest weight of catfish in the vertiminaponic system (11.75 kg), but it was not significantly different from malang sand (11.03 kg).

Co-Authors A.A.P Agung Suryawan Adriana Hiariej, Adriana Agus Sutanto Agus Sutanto Anak Agung Istri Kesumadewi ANELIA REZKINA BR.S Bambang S. Purwoko Bambang Sapta Purwoko Cokorda Gede Alit Semarajaya Danga, Jeni Rambu Yaku DEWA AYU BULAN INDRAYUNI, DEWA AYU BULAN Dharma, IGB Sila DIPUTRA, I MADE MARTANA ENIEK KRISWIYANTI Faisal Siregar Fau, Maria Berlian Fenny M. Dwivany FENNY MARTHA DWIVANY Fina Elziana Sapary G Wijana GEDE WIJANA GEDE WIJANA Giasintha Stefani Gusti Ngurah Alit Susanta Wirya Hendri, Jajang Husna Nugrahapraja I G. R. M. TEMAJA I GEDE JAYA MAHENDRA I GEDE KRISNA PRATAMA PUTRA I Gede Mahardika I GEDE SUDARMIKA I GUSTI ALIT GUNADI I GUSTI AYU ARINI LAKSEMI I Gusti Ayu Kadek Dian Permatha Suyoga I Gusti Ayu Kadek Dian Permatha Suyoga I GUSTI NGURAH SANTOSA I KADEK DWI MAHARDIKA I KADEK EKADANA I Ketut Suada I KETUT SUNARKA I MADE MARTANA DIPUTRA I Made Sara Wijana I Made Sudana I Made Sudana I Made Sudana I Made Sudana I Made Sukewijaya I Nyoman Dibia I NYOMAN GEDE ASTAWA I Nyoman Gede Ustriyana I Nyoman Sunarta I Nyoman Wahyu Ardianta I Nyoman Wahyu Ardianta I NYOMAN WIJAYA I PUTU DHARMA I PUTU DIAN PRATAMA I PUTU SUDANA I W BUDIARSA SUYASA I Wayan Diara I WAYAN EKA SAPUTRA I Wayan Nuarsa I WAYAN RUMADA I Wayan Sandi Adnyana I WAYAN SUAMBA I WAYAN WIRAATMAJA I WAYAN WIRATMAJA I.G.K. Dana Arsana IDA AYU ASTARINI IDA AYU MAYUN Ida Ayu Putri Darmawati Ida Bagus Komang Mahardika Ida Bagus Komang Mahardika IGK Dana Arsana KADEK JUNIARI Karlia Meitha ketut asrini Ketut Wikantika Khusni, Mazroatul Latifah K. Darusman Latifah Kosim Darusman Liran, I Gusti Putu Oka Maha Putra Wardana Luh Kartini Luh Putu Ratna Sundari M. Praborini M. Sudiana Mahendra Made Sudiana Mahendra, Made Mahardika, Ida Bagus Komang MARLIN MARHAENI PE Melani Jelita Tarigan Mintarajasa, Jaya Duarsa Muhammad Rivai NADA SAHARA NGAKAN MADE ADI WEDAGAMA Ngurah Gede Astawa NI KADEK ARYANI NI KADEK EMA SUSTIA DEWI Ni Kadek Trisnayanti Ni Kadek Trisnayati Ni Komang Alit Astiari Ni Komang Alit Astiari Ni Komang Ayu Septiani Ni Luh Kartini NI LUH WIDYASARI NI MADE KESUMA DEWI Ni Made Tia Juliasari NI MADE TRIGUNASIH NI NYOMAN ARI MAYADEWI Ni Putu Anom Sulistiawati Ni Putu Anom Sulistiawati Ni Putu Anom Sulistiawati, Ni Putu Anom NI PUTU ARYANTI Ni Putu Giyan Adnya Antari Niken Prameswari Putri Nisrina Sukriandi Onesimus Ke Lele Putu Suwardike Rindang Dwiyani Roedhy Poerwanto Roedy Poerwanto SAKHARA ZADE Shinta Lestari Santosa Sila Dharma, IGB SITI SHOFIAH Suwardhi, Deni Topik Hidayat UTAMA, I WAYAN EKA KARYA UTAMI UTAMI UTAMI UTAMI Wayan Trisna Dewi Wedayani, Ni Made WIDHIANTHINI WIDHIANTHINI Wiraatmaja, Wayan Yohanes , Setiyo Yohanes Setiyo Yoshua Aurelio Tarigan Yosni Kiuk YUDHA, I KADEK WISMA Yuyun Fitriani

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