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Agrotrop : Journal on Agriculture Science
Published by Universitas Udayana
ISSN : 2088155X     EISSN : 26544008     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal AGROTROP
Arjuna Subject : -
Articles 13 Documents
 1   2 
Search results for , issue "Vol 4 No 2 (2014)" : 13 Documents clear
Pertumbuhan Plantlet Anggrek Cattleya sp. dengan Perlakuan Benzyl Amino Purine pada Media Dasar Pupuk Daun Modifikasi HESTIN YUSWANTI; I. N. G. ASTAWA; N.N.A. MAYA DEWI
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Growth of Plantlets of Cattleya Orchid on The Fooliar Fertilizer-Based Medium added with Benzyl Amino Purine. The aim of the current research was to investigate the appropriate concentrationof plant growth regulator BAP on the growth of Cattleya plantlet. The experiment was utilized a Randomized Completely Design with five treatments and six replications. The basal medium used was modification of foliar fertilizer of Growmore (trade mark) with addition of fish emulsion, Vitamin B1 and active charcoal. BAP concentration used as treatment were 0 ppm, 0.5 ppm, 1.0 ppm, 1.5 ppm and 2.0 ppm. Variables observed were height, leaf number, root number, root length, fresh weight and dry weight of plantlets. The result showed that concentration of 1 ppm BAP resulted in the highest value for plantlet height (5.67 cm), leaf number (4.67), root length (2.07 cm), fresh weight (0.36 g) and dry weight (0.043 g).
Pertumbuhan Plantlet Anggrek Vanda tricolor Lindl. secara In Vitro dengan Penambahan Bubur Ubi Kayu pada Media MS IDA AYU PUTRI DARMAWATI; HESTIN YUSWANTI
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Growth of Plantlets of Vanda tricolor Orchid In-Vitro on the Cassava Pulp-Enriched MS Medium.Addition of organic matter into the culture medium is commonly used for increasing the source of sugar, vitamins and amino acids. The aim of this study was to determine the effect of the cassava pulp on the growth of Vanda tricolor plantlet, and to investigate appropriate dose for the optimal growth of plantlets. The experiment utilised a Randomized Completely Design with six treatments i.e. UO (MS medium without any organic matter), U1 (MS medium + 35 g/L cassava pulp), U2 (MS medium + 40 g/L cassava pulp), U3 (MS medium + 45 g/L cassava pulp), U4 (MS medium + 50 g/L cassava pulp), and U5 (MS medium + 45 g/L cassava pulp) with five replicates. The result showed that addition of cassava pulp significantly increased number of leaf, number of root and dry weight of plantlets. The highest number of root (i.e. 5.8) was obtained with addition of 50 g/L cassava pulp, while the highest dry weight of plantlet (i.e. 0.28 g) was on addition of 55 g/L cassava pulp.
Uji Adaptasi Galur Mutan Harapan Padi Gogo pada Lokasi Lahan Kering Dataran Tinggi Iklim Basah S.A.N. ARYAWATI; I N. RAI; I G. WIJANA
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Adaptation Test of Promising Upland Rice Mutant Line On Dry Highland With Wet Climate. Upland rice productivity is still low, productivity can be improved by using high yielding varieties through the breeding programs, by the Agency for agricultural research (BATAN). Test adaptation is necessary to determine the superiority of promising lines. The objective of this research was to determine adaptability, performance of growth, and productivity of mutant lines of upland rice. Research used randomized complete block design (RAK) single factor with 10 lines of treatment the results of gene mutation and 2 check varieties with three replications. Those treatments were PMG 01/Psj, PMG 02/Psj, PMG 03/Psj, PMG 04/Psj, PMG 05/Psj, PMG 06/Psj, PMG 07/Psj, PMG 08/Psj, PMG 09/Psj, PMG 10/Psj, Limboto and Local. The research was conducted on August 2014 until February 2015 in Tiga Village, District Susut, Bangli regency at high dry land wet climate. Data were analyzed by analysis of variance (Annova) and LSD test at 5% level. The results showed that tested of promising mutant lines show significant differences were observed in all parameters. Treatment of lines PMG 05/Psj, PMG 06/Psj, and PMG 08/Psj gave a yield of 2.22; 2.66; and 3.18 tons GKG/ha or higher than Limboto and Local check varieties as big as 2.04 and 0.90 tones GKG/ha. The three lines showed the parameters of flowering dates, number of filled grain, empty grain, and weight of 1000 grain, harvest time, KAR leaf, and chlorophyll better than check varieties. Lines of PMG 08/Psj gave the results 36.49% higher than Limboto and 71.78% higher than local varieties.
Sifat–sifat Unggul Morfologis, Fisiologis dan Fenologis Padi Toleran Lingkungan Kering (Review) GEDE MENAKA ADNYANA
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Superior traits of Morphology, Physiology and Phenology of Paddy that Tolerant to Dry-Environment. Ideotype Model of paddy that tolerant to dry environment is a priority for plant breeders to produce varieties that are adapted to dry environments such as rain-fed land. Improvement of crop productivity can be achieved through two approaches, namely environmental improvement and variety improvement. Regarding of variety improvement can also be performed with two approaches i.e conventional and genetic engineering. Through genetic engineering technology, drought resistant cultivars, can be achieved in a relatively short time, and obtained a more varied plant traits. By understanding the mechanisms of plant tolerant to a dry environment, it can be formulated model of superior paddy plants which are adapted to the dry environment. The properties of such tolerance is morphological (root length, root volume, root weight, leaf roll, the wax coating), physiological (decrease transpiration, stomatal closure, accumulation of ABA and proline), and phenological (the elasticity of plant development and the yield stability). The final target is the paddy plant with high yield and stable. This means relatively low yield reduction in dry environmental conditions, compared to the optimal environment.
Potensi Hasil Varietas Unggul Baru Padi Gogo Pada Lahan Kering Menunjang Peningkatan Produksi Beras Nasional di Kabupaten Garut ENDJANG SUJITNO; KURNIA KURNIA
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

The Yield Potential of Superior Variety of ‘Gogo’ Paddy on The Dry Land in Garut Regency to Support an increase of Domestic Rice Production. Garut regency has the potential dry land with an area of 34.043 ha planting or 15.42% of the acreage of upland rice in West Java. Development of upland rice, especially in dry land can provide a significant contribution to the improvement of the national rice production if managed properly. However, most of dryland farmers, still use a local varieties in upland rice cultivation, so that the production is still low. The use of new varieties of upland rice as a potential solution to solve the problems. To view the suitability of some new high yielding rice varieties in Garut Regency, has implemented a review of some new varieties of upland rice include Situ Patenggang, Inpago 5, Towuti, and Situ Bagendit. The research method used was a randomized block design with 4 treatments and 7 replications. The study was conducted in 2010-2011 on dry season from December 2010 until March 2011. The results showed that all varieties has the potential to be developed in Garut regency. The productivity showed of each variety were Situ Patenggang 3.83 t/ha, Inpago 5 3.72 t/ha, Situ Bagendit 3.08 t/ha and Towuti 3.01 t/ha. The farming analysis showed that the R/C value of each variety were Situ Patenggang 2.35, Inpago 5 2.28, Situ Bagendit 1.89, and Towuti 1.85.
Status Penyakit Layu pada Tanaman Cabai Rawit (Capsicum Frutescens L.) di Banjarangkan, Klungkung I MADE SUDARMA; NI MADE PUSPAWATI; NI WAYAN SUNITI; I GUSTI NGURAH BAGUS
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Status of wilt disease in pepper (Capsicum frutescens L.) at Banjarangkan, Klungkung. Wilt disease in pepper , has led to a total yield loss in Banjarangkan, Klungkung regency. Until now the disease was still a threat to farmers in the area pepper. The purpose of research to study the disease includes symptoms, causes disease, the percentage of the disease and the rate of infection (r). Research using existing observations of the disease in three plots of local farmers. Each plot the observed number of diseased plants and entire plants. Samples of diseased plants put in a plastic bag, then placed in an ice box , to be observed macroscopically in the laboratory. The study was conducted in two places, namely surveys Banjarangkan disease in Klungkung , and isolation of the pathogen as well as pathogenicity test carried out in the Laboratory of Plant Pathology, Faculty of Agriculture, Udayana University, Jl. PB Sudirman Denpasar-Bali. The research was conducted from June to November 2013. The results showed that the pathogen that causes wilt disease in pepper at Banjarangkan, Klungkung regency was the fungus Fusarium oxysporum f.sp. capsici, with the disease incidence was 76.67%. Fusarium wilt disease epidemic in pepper indicated by the rate of infection, first gained 0.44 per unit per day, then decreases with time, 0.23, 0.12 and 0.11 per unit per day respectively. The rate of infection ranged from 0.11 to 0.44 per unit per day, this means that the moderate criteria.
Pengaruh Penyiraman dan Dosis Pemupukan terhadap Pertumbuhan Kangkung (Ipomoea reptans) pada Komposisi Media Tanam Tanah+Pasir AHMAD RIFQI FAUZI
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Effect of Water Requirment and Fertilization on Growth of Kangkong (Ipomoea reptans) in media composition soil+sand. Kangkong plant is a tropical vegetable widely cultivated in Indonesia. Village has a wide adaptability to climate and soil in the tropics. This experiment aimed to see the effect of watering and fertilization on the growth of kangkong plants. Experiments was carried out in the garden experiment Cikabayan, IPB on March-April 2011. This experiment was arranged with randomized complete design which consisted of two factors are 3 levels of watering (watering every 1 day (A1), every 2 days (A2), and every 3 days (A3)) and fertilization with 5 doses (100% dose recommendation (P1), 75% (P2 ), 50% (P3), 25% (P4), and 0 (P5)). Planting medium was a mixture of soil : sand (1:1). The results of this study indicate that the frequency of watering significant effect on plant height and weight of wet kangkong plants. Watering once every 2 days to produce the highest plant height (41.41 cm). While fertilization had no effect on all observed variables. Conclusion of the experiment is watering is one of important factor for plant production which significant effect on plant growth.
Komunitas Nematoda pada Tanaman Kopi (Coffea Canephora Var. Robusta) Muda di Kabupaten Tanggamus Lampung I GEDE SWIBAWA
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

The Community of Nematode in The Young Coffee ( Coffea Canephora Var. Robusta ) Crops in Tanggamus District, Lampung. Tanggamus district is one of coffee production center in Lampung province. Since year of 2013, farmers in Tanggamus have been replaced the unproductive old coffee by coffee seed introduced from East Java. Introducing coffe seed from outside area at risk of carrying plant parasitic nematodes. The purpose of this research was to study community of nematode associated with young coffee crops in Tanggamus. Survey was conducted in coffee robusta (Coffea canephora var. robusta) fields belonging to farmer on September 2014. Soil samples were collected from three sites: Margo Mulyo, Sumber Rejo and Batu Bedil. Nematodes were extracted by sieving and centrifugation with sugar solution method. The results show that were 20 genera consisted of 9 genera of plant parasitic and 11 genera of free living nematodes associated with young coffee in Tanggamus. The nematode community was dominated by Pratylenchus and Radopholus. The population of Pratylenchus and Radopholus in Sumber Rejo site were 421 and 846 individual per 300 ml of soil respectively. It was needed to indentify up to species taxonomic level for Pratylenchus and Radopholus associated with young coffee in Tanggamus.
Seleksi Generasi Bersegregasi pada Galur-Galur Padi untuk Sawah Tadah Hujan WAGE R. ROHAENI; UNTUNG SUSANTO
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Selection on Segregating Generation of Paddy Lines for Rainfed. High yielding variety of paddy adapted for rainfed is not many developed until now. Just Inpari 38 that has been released successfully for rainfed areal. Segregating population is the basic for breeding activity. Indonesian Centre of Rice Research has been creating based population for creating new varieties adapted on ranfed environment. The aim of this research was for getting promising lines adapted on rainfed with good vigor, resistence form host and pest, and early maturity. This research was done at wet season in 2014 (November 2014 – March 2015) in rainfed areal, Margasari, Pasawahan district-Purwakarta, West Java. About 2694 lines were evaluated as genetic material. Bulk and Pedigree methods was being used on this research. The selection activity has done successfully with getting 637 best lines that has good score of vigorous (score 1 and 3) and healthy. There were consist of 21.19% from early generation, 63.26% from middle generation, and 19.47% from advanced generation. About 203 lines has early maturity criteria and 434 lines has medium maturity criteria.
Keanekaragaman dan Parasitisasi Parasitoid Telur Leptocorisa Acuta pada Berbagai Pola Tanam Padi AISAH JAMILI; HERY HARYANTO
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Diversity and parasitization of egg parasitoid of Leptocorisa acuta on various rice cropping pattern. Study on parasitoid diversity and their parasitization on various rice cropping pattern was conducted during April - October 2012. Exploration of egg parasitoids was conducted by collecting host eggs from rice field in Lombok Island. Sample of Insect were collected by hand. Two species have been identified, namely Ooencyrtus malayensis and Hadronotus leptocorisae. The result showed that eggs of both parasitoid were distributed in all locations with composition 50%. Generally, three times rice cropping pattern showed higher rate of parasitization (31,45%) compared to two times (22,69%) and once cropping pattern (18,03%). Parasitoid and diversity index were similar in different time, although the tend to increase linearly with the rice growth. The Shannon diversity index H’ between 0,24-0,30. Domination index 0,62-0,51, evenness index (E) 0,35-0,43. The result suggest that parasitoid diversity and parasitization is depend on many factors, including rice cropping pattern.

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