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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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Respon Pertumbuhan dan Hasil Tanaman Jagung Manis terhadap Dosis Spora Endomikoriza Indigenus MARLIN MARHAENI PE; I NYOMAN RAI; I KETUT SUADA
Agrotrop : Journal on Agriculture Science Vol 11 No 1 (2021)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2021.v11.i01.p10

Response of Growth and Yield of Sweet Corn to Dosage of Spores of Indigenous Endomycorrhizae. Endomycorrhizae is a form of mutualism association between fungi (myces) and roots (rhiza) of higher plants. The symbiotic relationship that occurs at the roots is mutually beneficial. Plants can provide carbon organic compounds for fungal growth, whereas fungi benefit plants by increasing nutrient uptake, water, producing enzymes, antibiotics and other compounds given to host plants. The study was conducted to know the effect of dosage of spores of endomycorrhizae indigenous to growth and yield of sweet corn. The experiments were carried out in laboratories and greenhouses. The design used was a completely randomized design with one factor namely the dose of spores of endomycorrhizae consisting of three levels, i.e. D0 = without inoculation of endomycorrhizae, D1 = 75 spores of endomycorrhizae/plant, and D2 = 150 spores of endomycorrhizae/plants. The results showed that dose of spores of endomycorrhizae treatment had a significant effect on growth and yield of sweet corn. The highest fresh weight of cob was obtained at a dose of 150 spores/plant, namely 181.33 g / plant. Based on the results of this study, it is necessary to conduct research in the field using a dose of 150 spores of endomycorrhizae per plant.

Kajian Fisiko-Kimia Buah Jeruk Siam (Citrus nobilis Lour.) pada Perbedaan Tingkat Kematangan Selama Penyimpanan NI PUTU ARYANTI; COKORDA GEDE ALIT SEMARAJAYA; I MADE SUKEWIJAYA; I NYOMAN RAI
Agrotrop : Journal on Agriculture Science Vol 7 No 1 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

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.

Respon Pemupukan terhadap Hasil dan Kualitas Buah Jambu Biji Kristal (Psidium guajava L. cv. Kristal) I WAYAN SUAMBA; I NYOMAN RAI; GEDE WIJANA
Agrotrop : Journal on Agriculture Science Vol 7 No 2 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

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%).

Pembuahan Jeruk Siam (Citrus microcarpa L.) di Luar Musim dengan Perlakuan Induksi Pembungaan dan Zat Pemecah Dormansi I WAYAN RUMADA; I NYOMAN RAI; RINDANG DWIYANI
Agrotrop : Journal on Agriculture Science Vol 11 No 1 (2021)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2021.v11.i01.p02

Fertilization outside the season of Siam Orange (Citrus microcarpa L.) with Induction of Flowering and Dormancy Breaking Substances. The Siam orange (Citrus microcarpa L.) produces seasonal fruit with the on-season harvest from July to August while the off-season harvest, i.e. from February to September there is hardly any fruit, or very limited supply. The purpose of this study was to examine the response of flowering induction and dormancy-breaking substances to produce off-season fruits of Siam orange. This research began in April to December 2016. The experiment was arranged factorially with two factors using a randomized block design (RBD), with nine combination treatments and six replications. Flowering induction factors consist of three levels, namely Ik = Control, IP = Paclobutrazol at a dose of 7.5 g/l, and Im = cutting the tip of dormant twigs. Dormancy-breaking substances factor consists of three levels, namely Dk = Control, Db = BAP 200 ppm, and Dn = KNO3 300 ppm. The results of the experiment showed that the highest fruit weight per tree at off-season production was obtained by induction with paklobutrazol (28.86 kg) and the lowest was in control (12.75 kg). Flowering induction treatments was not significantly different effect on fruit quality of Siam orange, represented by weight per fruits, fruit diemater, total soluble solid and vitamine C content was not siginificant different among levels of treatment. Dormancy-breaking substances treatment also not significantly effect on fruit quality of Siam orange. Based on this research it is recommended to induce flower for off-season produce of Siam orange by pruning the tips of dormant twigs or by using paklobutrzol.

Pengaruh Media Tanam dan Pemupukan terhadap Pertumbuhan Bibit Jambu Biji (Psidium guajava L.) untuk Batang Bawah I KADEK EKADANA; I NYOMAN RAI; GEDE WIJANA
Agrotrop : Journal on Agriculture Science Vol 7 No 2 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

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.

Respon Pemupukan Terhadap Hasil dan Kualitas Hasil Salak Gula Pasir (Salacca zalacca cv. Gula Pasir) di Luar Musim Serta Kandungan Air Dan Klorofil Daun NI MADE KESUMA DEWI; I NYOMAN RAI; I WAYAN WIRAATMAJA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Fertilization Response to Off-Season Production and Fruit Quality of Salak Gula Pasir (Salacca Zalacca cv. Gula Pasir) and water and Chlorophyll Content of Leaves. Naturally salak Gula Pasir (Salacca zalacca cv. Gula Pasir) flowers every three months a year, but only one to two seasons of the flowers can develop into fruit. Failure of flowers develop into fruit, usually call fruit-set failure, causes the fruits be available seasonally in a short time period, only 2-3 months a year, i.e. during the harvest time (on-season period) from December to February. This research aimed to know response of fertilization to off-season production and fruits quality of salak Gula Pasir and its ralatinship to water and chlorophyll content of leaves. The study used a randomized block design with the treatment was fertilization, consists of 14 levels (fertilized according farmers’ way with leaf midrib only/control, fertilized with compost, mycorrhizal biofertilizer, inorganic NPK, combination of farmers' way and compost, combination of farmers’ way and mycorrhizal biofertilizer, combination of farmers' way and inorganic NPK, combination of compost and mycorrhizal biofertilizer, combination of compost and inorganic NPK, combination of mycorrhizal and inorganic NPK, combination of farmers’ way, compost, and mycorrhizal biofertilizer, combination of farmers’ way, compost, inorganic NPK, combination of farmers’ way, mycorrhizal biofertilizer and inorganic NPK, and combination of farmers’ way, compost, mycorrhizal biofertilizer, and inorganic NPK). Each treatment was repeated 3 times. The study was carried out in the off season period from April to Nopember 2018 at the production center of salak Gula Pasir plantation i.e. at Sibetan Village, Bebandem District, Karangasem Regency. The results showed that the highest fruit weight per tree at the off-season was obtained on combination of fertilization of farmers' way and mycorrhizal biofertilizer (of 2536.67 g) and the lowest was on control/fertilized according farmers’ way (1,220.00 g). Fertilization with compost, mycorrhizal biofertilizer, and inorganic NPK singly, or by combining it, increases the quality of off-season fruit of salak Gula Pasir, reflected by the increase of weight per fruit, fruit diameter and fruit sweetness compared to control. The lower of yield per tree and quality of fruit on control compared to other fertilization treatments was relate to low relative water content and chlorophyll content of leaves.

Mengatasi Kegagalan Fruit-Set dengan Pembuangan Bekas Tandan Bunga dan Anakan Pada Salak Gula Pasir (Salacca zalacca var. Gula Pasir) I WAYAN EKA SAPUTRA; I WAYAN WIRAATMAJA; I NYOMAN RAI
Agrotrop : Journal on Agriculture Science Vol 5 No 1 (2015)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (83.188 KB)

Overcoming the Failure of Fruit-set by Removing Former Flower Stem and Shoot on Salak Gula Pasir Fruit (Salacca zalacca var. Gula Pasir). This research aimed to overcome the failure of fruit-set by removing former flower bunch and shoot on salak gula pasir (Salacca zalacca var. Gula Pasir). This research was a factorial experiment, designed using randomized completely block design with 2 factors. The first factor was removal of former flower bunch, consisted of 2 levels (removed and not removed), and the second factor was removal of shoot, consisted of 2 levels (removed and not removed). Thereby, there were 4 treatments combination and replicated 7 times so that 28 plants was required. The result of the research showed that the greatest percentage of fruit-set (80,15%) was obtained on the shoot removal treatment, whereas the fruit-set of the treatment on which shoot was not removed was 60,34%. On the removal of former flower bunch treatment, there was no significant difference on removal and not removal treatment between the percentages of fruit-set.

Isolasi dan Identifikasi Endomikoriza pada Perakaran Tanaman Jagung (Zea mays L.) Dataran Sedang serta Perbanyakannya pada Tingkat Kadar Air Tanah Berbeda NGAKAN MADE ADI WEDAGAMA; I MADE SUKEWIJAYA; NI LUH KARTINI; I NYOMAN RAI
Agrotrop : Journal on Agriculture Science Vol 9 No 2 (2019)
Publisher : Fakultas Pertanian Universitas Udayana

Isolation and Identification of Endomycorrhizal on Corn Root (Zea mays L.) at Medium Plain and its Propagation at Different Soil Water Level. Endomycorrhizal has several benefits that can increase the absorption of water and nutrients, protect plants from root pathogens and toxic elements, play a role in the improvement of soil structure, and increase the solubility of nutrients. The purpose of this research is to find out the types endomycorrhizal contained in the corn roots at medium plains in Gianyar Regency, and the influence of different soil water level to endomycorrhizal ability to reproduce spores. This research was conducted from September 2017 to February 2018. The method of the research includes exploration, isolation, identification, propagation of spores endomycorrhizal, and soil samples analysis. Isolation and identification result found 2 genus of spores endomycorrhizal that was Glomus and Acaulospora, with various spore amount and the level of infection endomycorrhizal was very high with percentage of 83.33-86.67%. Spores propagation test results showed that the highest percentage enhacement of spores endomycorrhizal amount was found in the third soil sampling location in soil water level of 40% field capacity treatment with percentage of 551.85%. The level of endomycorrhizal infections at the roots of all treatment of soil sampling location and soil water level were very high with percentage of 100%.

Identifikasi dan Karakterisasi Sumber Daya Genetik Buah-Buahan Lokal di Kabupaten Badung I GEDE SUDARMIKA; I NYOMAN RAI; UTAMI UTAMI
Agrotrop : Journal on Agriculture Science Vol 6 No 2 (2016)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (277.617 KB)

Identification and Characterization of Genetic Resources of Local Fruits inBadung Regency. Local fruit are all species of fruits developed and cultivated in Bali,while the local fruit products are all productsderived from fruit plants that are still fresh orthat have been processed. This study aimed to identify the species of genetic resources oflocal fruits in Badung Regency, profiling the genetic resources concerning the morphologicalcharacters, usebility, production, superior fruit, harvest fruit, and geographic distribution mapsof genetic resources. The research was done in all Districts in Badung regency, Province ofBali, namely Petang, Mengwi, Abiansemal, North Kuta, Kuta and South Kuta. Conductedfrom February to September 2015. The research consisted of collecting secondarydata,collecting primary data, surveying genetic resources and species distribution, determiningmorphological characters, determining the superior fruit, and compiling geographical maps.The research found 34 species and 51 sub-species of local fruits in six districts. Based on thevalue of Location Quotient Badung Regency has eight superior fruits commodied that areavocado, durian, guava, jackfruit, pineapple, banana, sapodilla, and watermelon.

Uji Daya Simpan dan Efektivitas Prototipe Pupuk Hayati Mikoriza dengan Media Pembawa Pasir Vulkanik dan Pasir Laut KADEK JUNIARI; I NYOMAN RAI; I MADE SUKEWIJAYA
Agrotrop : Journal on Agriculture Science Vol 10 No 2 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2020.v10.i02.p06

Time Storage and Effectivity of the Prototype of Mychorrhiza Biological Fertilizer with Volcanic and Sea Sand as the Carrier Media. This research aimed to study time storage and the efectivity of prototype of mychorrhiza biological fertilizer with volcanic and sea sand as the carrier media. The study was arranged using a randomized block design with 2 factors. The first factor was carrier media of mychorrhiza spore consist of 2 levels i.e. volcanic and and sea sand, and the second factor was time storage of prototype of mychorrhiza biological fertilizer consist of 3 levels i.e. 1, 2, and 3 month. The result of research showed that volcanic sand carrier media was better than the sea sand media proved by higher total dry weight. The best time storage of prototype of mychorrhiza biological fertilizer in this research was 1 month indicated by the highest amount of spores after storage. The interaction between carrier media and time storage gave significantly different just to stem diamater and fresh weight of corn cob.

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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