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All Journal Jurnal Ilmu Pertanian Agrotrop : Journal on Agriculture Science AGRITROP Journal of Agricultural Science and Biotechnology Bumi Lestari E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) jurnal Ilmu Pertanian (Agricultural Science)
I GUSTI NGURAH RAKA
Program Studi Agroekoteknologi Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Energy Environmental Science

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Pemanfaatan Tandan Kosong Kelapa Sawit dan Pupuk Nitrogen Sebagai Substitusi Top Soil terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis Guineensis Jacq.) PeriodePre Nursery YOSEPH SITIO; GEDE WIJANA; I GUSTI NGURAH RAKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT The Utilization of Oil Palm Empty Bunches and Nitrogen Fertilizer as Substitution of Top Soil on Growth of Oil Palm Seedling (Elaeis guineensis Jacq.) in Pre Nursery Palm oil (Elaeis guineensis Jacq.) is the leading commodity in Indonesia, Indonesia can produce 23.900 ton or 40,27% of the total world production palm oil. To increase the production of palm oil so it’s necessary to the expansion of oil palm plantations. Media used for oil palm seedling is top soil, difficulty to get top soil it’s because it’s used continuously or eroded due to erosion so the availability of top soil is limited. Therefore, needed alternative to substitusion of top soil as a media of oil palm seedling. The purpose of this research was to know potential of compost oil palm empty bunches (TTKS) and nitrogen fertilizer as substitution of top soil on growth of oil palm seedling in pre nursery. This research used randomized complete block design with 2 factors. The first factors is media with top soil + sub soil + sand (3:1:1), TKKS compost + sub soil + sand 3:1:1, 1:3:1, 2:2:1, 2:1:2, 1:2:2 and the second factors is doses nitrogen fertilizer (urea 46%) with 0 g urea/pot, 2 g urea/pot and 4 gurea/pot.The research result showed that media TKKS compost + sub soil + sand 2:2:1 and 3:1:1 can substitution top soil because it has a value that is greater than or equal to the observed variable with controls. The application of nitrogen 4 gurea/seed showed the maximal growth of oil palm seedling in pre nursery.  The interaction of the both treatment just significant to plant height 4 and 12 weeks after planting, leaf area 4 weeks, steam diameter and leaf  number 8 weeks,  fresh weight of  crown 12 weeks. Composition of TKKS compost + sub soil + sand 3:1:1 + 4 g urea/pot is the best composition as a substitution of top soil because the value of  parameters plant height, leaf number, total chorophyll, fresh weight of crown, fresh weight total and dry weight total are greater than or equal to top soil. Keyword : TKKS compost and Nitrogen, substitution top soil, pre nursery
Pengaruh Pemangkasan Cabang Lateral terhadap Hasil dan Mutu Benih Kacang Panjang (Vigna sinensis L.) LILIK HANDAYANI; I GUSTI NGURAH RAKA; ANAK AGUNG MADE ASTININGSIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Effect of Lateral Branch Trimming Against Results and Quality of Long Bean Seeds (Vigna sinensis L.) Long beans include shabby legume-shaped families that sprout or spread and are able to bind free nitrogen from the air through symbiosis with rhizobium bacteria. Long bean plant is an indeterminate type of plant that is vegetative phase that continues to be active even though it has entered the generative phase. Lateral branch in long beans will continue to grow, so that trimming measures are needed so that the competition for the use of assimilate result from photosynthesis can be reduced and can be used fully when the generative phase takes place. This study aims to determine the effect of lateral branch trimming on the yield and quality of long beans seeds. The method used is paired T test system. The treatments tested were trimming of lateral branches and without trimming of lateral branches. Each treatment was repeated 25 times and each replication was represented by 3 plants. Data were analyzed using t-test. The result showed that the treatment of lateral trimming of long bean plants was able to produce higher leaf chlorophyll content compared to those that were not trimmed, the treatment of lateral branch trimming of long bean plants was able to produce seeds of 14,09 tons/ha on the trimmed ones and 5,24 tons/ha on the untrimmed and lateral branch trimming treatment of long bean plants was able to produce 1000 seed weight of 190,65 g which was trimmed and 165,76 g on the non trimmed. Thus it was also able increase the germination capacity by 92% in the trimmed one and 87% in the non-trimmed one.
Pembebasan Benih Kacang Panjang (Vigna sinensis L) dari Infeksi Bean Common Mosaic Virus (BCMV) melalui Perlakuan Dry Heat HERRY KUSUMA YUDHA; GST NGURAH ALIT SUSANTA WIRYA; I GUSTI NGURAH RAKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.2, April 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

This study are aims to determine the effect of dry heat treatment (DHT) on the quality of seed beans and to determine the length of time required for dry heat treatment (DHT) in seed beans. This research has six activities, that are: 1. sampling symptomatic plants virus on long bean; 2. preparation of seed; 3. dry heat treatment (DHT); 4. test for Immunosobent Serology Enzyme-linked Assay (ELISA); 5. observations; 6. data analysis. The research were designed by completely randomized design (CRD) with six treatments and five replications. The research result show that dry heat treatment does not give adverse effects on seed germination of beans. Treatment of dry heat on a temperature of 70ºC for 60 hours most effective for inactivation of bean common mosaic virus (BCMV) on the seed beans and did not cause damage on the other elements of seed quality. Based on these studies further research on dry heat treatment to determine their effectiveness to protec plants from bean common mosaic virus (BCMV) in endemic areas, should be conducted.
Pengaruh Aplikasi Beberapa Rhizobakteria terhadap Hasil dan Mutu Benih Padi Beras Merah (Oryza nivara L.) Lokal Jatiluwih NI MADE YULI HANDAYANI; NI LUH MADE PRADNYAWATHI; IDA AYU MAYUN; I GUSTI NGURAH RAKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.4, Oktober 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Effect of the Application of Some Rhizobacteria on the Yield and Quality of Jatiluwih Local Red Rice (Oryza nivara L.) Seeds This research aims to determine the effect of rhizobacteria on improving the yield and quality of local red rice seeds of Jatiluwih. The research used a Randomized Complate Block Design (RCBD) with one factor. The treatments tested were four types of rhizobacteria consisting of Serratia marcescens, Achromobacter spanius, Providencia vermicola and Pantoeae agglimerans, one treatment from a mixture of four rhizobacteria and one control (without rhizobacteria application). The results showed that the fourth mixture of rhizobacteria was able to improve the yield and quality of red rice seeds which was higher than the treatment using one rhizobacteria isolate. The average value of seed yield per hectare in the fourth rhizobacteria mixture treatment increased by 56.48%, in the treatment of one isolate it increased by 35.45%-36.67% compared to controls (average yield of 4.09 ton). The weight of 1000 rice seeds of red rice with a mixture of the four rhizobacteria isolates increased by 5.55% and the application of one rhizobacteria isolates increased by a range of 2.79%-3.30% compared to controls whose weight of 1000 seeds amounted to 27.59 g. The treatment application of the mixture of the four rhizobacteria isolates and the application of one rhizobacteria isolate were able to increase the vigor of storage capacity in the range of 3.86%-9.18% compared to controls whose storage vigor was 82.80%. It also has a significant effect on increasing vegetative and generative growth of red rice plants.
Uji Efektivitas Beberapa Teknik Ekstraksi dan Dry Heat Treatment terhadap Viabilitas Benih Tomat (Lycopersicum esculentum Mill.) I WAYAN GUNARTA; I GUSTI NGURAH RAKA; A.A.M. ASTININGSIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.3, No.3, Juli 2014
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Efectivity Test for Some Extraction Techniques and Dry Heat Treatment on Tomato Seed (Lycopersicum esculentum Mill.) This experiment aimed to obtain the most effective extraction method and determine the effect of dry heat treatment to produce high quality tomato seeds. The design used was completely randomized design with 3 treatments and 9 replications. The treatments include: (1) Bl : fresh tomato seeds taken, immediately dried to 5% moisture content, (2) Ba: fresh tomato seeds taken, then soaked in water for 24 hours, dried to 5% moisture content, (3 ) Bh: fresh tomato seeds taken, then soaked in a solution of 2% HCl for 2 hours, then dried until the moisture content of 5%. Seeds obtained from each extraction technique is divided into two lots, one lot for Dry Heat Treatment (DHT) and the other one lot for Non Dry Heat Treatment (NDHT). The variables measured were the number of seed moisture content of 5% by weight of unity, purity of the seeds, the total viability, potential viability, vigor speed germination, and seedling growth vigor. The results showed the significant diference between extraction treatment to all of variables tested, while the granting of DHT on the seed does not provide a response to tomato seed quality, on all variables tested. Bh extraction treatment showed the best results with the highest values  on all of variables tested.   Key word : tomato seeds, extraction, dry heat treatment, viability and vigor.
Uji Efektivitas Teknik Ekstraksi dan Dry Heat Treatmentterhadap Kesehatan Bibit Tomat (Lycopersicum esculentum Mill.) DEWA NYOMAN PREMA ANANDA; I GUSTI NGURAH RAKA; NI NYOMAN ARI MAYADEWI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.1, Januari 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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ABSTRACT Effectiveness of Technique Extraction Test and Dry Heat Treatment to Seed Health of Tomato (Lycopersicum esculentum Mill.). Tomato (Lycopersicum esculentum Mill.) is one of horticultural commodities with many benefit and still requires serious treatment for improvement of productivity.Seed healthy is one of the tomato productivitydeterminer. Tomato seeds used by farmers mostly contaminated by seed-borne viruses.This research aims to determine the effectiveness of extraction technique and dry heat treatment on the health of tomato seedlings. Research consists of five activities: 1. Fruit prepation for seed; 2. Extraction of seeds; 3. Drying; 4. Dry heat tratment, 5. Seed quality testing; and 6. Data analisys. This research is completely randomized design (CRD) with six treatment combinations and each combination is repeated four times. The results showed extraction treatment with soaking 2% HCl, calcium oxide, and water is not effective to produce healthy tomato seedlings, while Dry Heat Treatment effective to produce healthy tomato seedlings. Extraction and treatment of Dry Heat Treatment show interaction on seed health variables were real derived from diseased plants. Keywords: tomato, extraction techniques, dry heat,seedlings healthy
Uji Kemampuan Beberapa Isolat Rhizobakteria untuk Meningkatkan Pertumbuhan dan Hasil Kedelai (Glycine Max (L)Merill) AYU GEK MIRAH LESTIANINGRUM; I GUSTI NGURAH RAKA; I DEWA NYOMAN NYANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.1, Januari 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Test Capabilities some Isolate Rhizobacteria for Enhancing the Growth and Yield of Soybean (Glycine max L. Merill)This study aims to get the isolates of rhizobacteria that have a better ability to increase growth and yield of soybean. Randomized block design was used with 14 treatments, which 13 are treated using rhizobacteria isolates from different plants root and one without isolates of rhizobacteria. Each treatment was repeated three times. This research was conductedin the pots with observations of the growth and yield of soybean that includes; plant height, leaf number, number of branches, chlorophyll, the number of nodules, dry weight of the plant part above the ground and below the ground, the number of pods, number of seeds, seed weight, and predict the outcome of soybeans per hectare. The result showed that three isolates rhizobacteria who have better abilities compared to other isolates rhizobacteria to improve the growth and yield of soybean that isolates R53, R6, and R26, with its ability to improve; plant height, number of branches, number of leaves, chlorophyll, the number of nodules, the number of dry weight of the plant above ground or below ground, the number of pods, number of seeds, seed weight and better ability to increase soybean yield per hectare. In addition to these three isolates are also two isolates rhizobakteria which only has the ability to increase soybean yield that isolates R10 and R11. The five isolates rhizobakteria ( R53, R6, R26, R10, dan R11 ) can be regarded as rhizobateria were able to spur the growth and yield soy called PGPR bacteria .
Perbedaan Umur Panen terhadap Hasil dan Mutu Benih Tanaman Buncis (Phaseolus vulgaris L.) KADE LICANA LARASATI SURYAWAN; I GUSTI NGURAH RAKA; IDA AYU MAYUN; I KETUT ARSA WIJAYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.4, Oktober 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Difference in Harvest Age Against the Results and Quality of Seedlings of Beans(Phaseolus vulgaris L.) This study aims to determine the effect of seed age on the yield and quality of beans. This research is a one factor research with three different age of harvesttreatments are: harvest before physiological maturity 24 days after flower blooms,harvest at physiological maturity is 27 days after flower blooms, and harvest afterphysiological maturity is 30 days after flower bloom. This study used a randomizedblock design (RBD) with 9 replications. The observed variables included: thedevelopment of the seed wet weight, seed oven dry weight, seed moisture content, podand seed character, percentage of good seed, weight of 1000 seed grains, seedgermination, and seed growth simultaneity. The results showed that the pod harvesttime for the best seeds was carried out at the age of 27 days after the flowers bloomed. At that time the highest dry weight of the seeds and pods had changed color from greento yellowish green. At that time the seeds also showed maximum qualitycharacteristics, such as the percentage of good seeds (87.22%) and the weight of 1000seeds (91.34 g). Physiological characteristics of seed quality such as seed germinationcapacity of 99.78% and 88.78% simultaneity of seed growth were also obtained at thetime of pod harvest at 27 days after flower blooms.
Pengujian Mutu Benih Beberapa Jenis Tanaman Hortikultura yang Beredar di Bali NI NYOMAN DWI RESPITA NINGSIH; I GUSTI NGURAH RAKA; I KETUT SIADI; GUSTI NGURAH ALIT SUSANTA WIRYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.1, Januari 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Seed Quality Testing Several Types of Horticultural Crops Circulating in Bali This study aims to determine the physical quality, viability, and vigor seeds of several types of horticultural crops those circulating in Bali. This research was conducted at Breeding and Seed Technology Laboratory and Plant Disease Laboratory of Udayana University Faculty of Agriculture, which lasted from February to April 2015. The method used is seed testing method with duplo system and using T-Test with three replications. The types of seeds that are tested for their quality consist of seven species: mustard, long bean, eggplant, ercis, cucumber, cayenne, and cabbage. The variables observed were physical quality (moisture content), viability (seed germination), and vigor (synapticity of seed growth). The results showed that the seeds of some horticultural crops circulating in the market in Bali have a pretty good quality. This can be seen from the physical quality test of seeds in the form of moisture content, almost all seeds have a relatively safe water content for storage. The result of seed quality test of percentage of seed germination gain between 90.33% - 97.33% in laboratory test is very good because it is above the standard germination value. The result of the simultaneous vigor test grew up to 59.00% - 69.00% is a good enough vigor value because it is at a level above 50%.
Uji Mutu Benih Kedelai (Glycine max L. Merril) Varietas Grobogan yang Diproduksi dengan Aplikasi 10 Isolat PGPR NI PUTU NONIK SUGIANTARI; I GUSTI NGURAH RAKA; UTAMI UTAMI
Agrotrop : Journal on Agriculture Science Vol 7 No 2 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

The Quality Test on Soybean Seeds (Glycine max L. Merril) for Grobogan Variety that Produced by Using Applications of 10 Isolats PGPR. This research is aimed to know the ability of isolat Plant Growth Promoting Rhizobakteria (PGPR) producing soybean seed with quality and high seed quality. The complete random plans (RAL) are used in this research. Tens kinds of isolat rhizobakterias and 1 control (without rhizobakteria) are tested. Observation is done toward variable of sprouts’ energy, vigor (energy supplying), electrical conductivity, ratio of seed coat, and vigor of seeds growth (tall, number of leafs, dry weight for oven on ground, and dry weight for roots). The outcome shows of roots that 10 isolat rhizobakterias are able to improve the seed yield and soybean seed quality. 10 isolat rizobakterias produce soybean seeds with sprouts’ energy > 80% to fulfill seed quality standard “international seed testing association (ISTA)”. Having three isolats which are effective namely, R35 (it is isolated from cajanus cajan’s root), R3 (it is isolated from stylosanthes guianensis’s root), and R26 (it is isolated from solanum nigrum’s root). Three of those isolats produce high harvest namely R35 (10.4g), R3 (10.10g), R26 (10.86g). Those three isolats also produce seed with physical quality and high physiology.
Co-Authors A.A.M. ASTININGSIH ANAK AGUNG MADE ASTININGSIH AYU GEK MIRAH LESTIANINGRUM DEWA NYOMAN PREMA ANANDA FRANSISCO FILIPE GAMA GEDE WIJANA Gusti Ngurah Alit Susanta Wirya HERRY KUSUMA YUDHA HESTIN YUSWANTI I Dewa Nyoman Nyana I GEDE ARDYAWAN I GUSTI ALIT GUNADI I GUSTI NGURAH WISNU PURWADI I KETUT ARSA WIJAYA I Ketut Siadi I KOMANG AGUS SUPRIANA I MADE BAGUS ANGGARA I MADE DWI ANJARDITA I Made Sudana I MADE SUDANA I NENGAH ARTHA I NYOMAN RAGANATHA I NYOMAN SUTEDJA I PUTU RINATA ASTAWA I WAYAN GUNARTA I WAYAN SEDANA IDA AYU MAYUN IDA AYU PUTRI DARMAWATI IDA BAGUS KETUT AGUNG KADE LICANA LARASATI SURYAWAN KETUT BUDIAWAN KETUT SRINING Khamdan Khalimi LILIK HANDAYANI LUCIO NUNO NI KADEK AYU WIDAYANTHI NI KADEK DWIK PRADNYAWATI Ni Komang Budiyani NI LUH MADE PRADNYAWATHI Ni Luh Made Pradnyawati NI MADE YULI HANDAYANI NI NYOMAN ARI MAYADEWI NI NYOMAN DWI RESPITA NINGSIH NI NYOMAN TRISNA KENCANA DEWI NI PUTU NONIK SUGIANTARI NI PUTU SUCITA ANGGRAENI PUTU MAHADIPTHA ROBERTO BOBHOPE ARUAN SANG MADE SARWADANA UMU SA’ADAH UTAMI UTAMI Wayan Sudarka WAYAN SUENA YOSEPH SITIO