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INDONESIA
AGRITROP
Published by Universitas Udayana
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Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
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Articles 40 Documents
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Deteksi Chrysanthemum B Carlavirus (CVB) pada Tanaman Krisan di Indonesia TEMAJA, I G. R. M.; SUASTIKA, G.; HIDAYAT, SH.; KARTOSUWONDO, U.
AGRITROP Vol. 26, No. 1 Maret 2007
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Abstract

In a survey of chrysanthemum growing fields and greenhouses in Brastagi, Sumatera Utara; Cianjur, JawaBarat; Malang, Jawa Timur; and Tabanan and Buleleng, Bali, some chrysanthemum cultivars were found showingmild leaf mottling, vein-clearing or vein banding of leaves and slight loss of flower quality. Out of 287 samplessurveyed, the disease incidence ranged between 7.50% and 67.44%. Through DAS-ELISA, the saps extractedfrom diseased plant samples, 34.84% were found to be positively reacted with serum anti-CVB, but not with seraanti- CMV, -TSWV, -PVY and -TMV. The virus isolate was then designed as CVB Indonesian isolate. The viruswas sap-transmissible to narrow host range. The virus induced systemic symptom on Nicotiana benthamiana, N.clevelandii, N. tabacum var. Burley, N. tabacum var. Havana; local necrotic lesion on Chenopodium amaranticolo,C. quinoa and both local and systemic symptom on Petunia hybrida.
UJI EFEKTIVITAS MIKROBA ANTAGONIS TERHADAP PATOGEN PENYEBAB BUSUK BUAH KAKAO SUDARMA, I MADE; SUSANTA WIRYA, I G. N. A.
AGRITROP Vol. 28, No. 3 September 2009
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Abstract

Pod rot disease in cacao (Theobroma cacao) caused by Phytophthora palmivora has been loss until 90%. The major economic loss is from infection of the pod. Pods can be infected at any age, but most significant economic loss arises from infection during the two months prior to ripening. Pod infected at this stage can be a total loss because the fungus can easily pass from the pod husk to the seed-coat of the bean in a cacao still be convergent only at usage of synthetic pesticide. Therefore need to be searched other alternative to control the disease, namely by exploiting antagonist microbe. Research has been done in Laboratory of Microbiology and Microbial Pesticide, Department of Agroecotechnology, Faculty of Agriculture, Udayana University, Jl. PB. Sudirman Denpasar, from April until October 2007. There are three research phases done like : 1) insulation pathogen cause of disease, 2) antagonist microbe inhibitory activity test to growth of pathogen in vitro, and 3) inhibitory activity test free cell antagonist microbe to growth of pathogen in vitro. Result of research shows, found two species pathogen cause of pod rot disease of cacao namely Phytophthora sp. (A) and Phytophthora sp. (B). Based on result of examination out of four antagonist microbes tested like Trichoderma sp.; Saccharomyces sp.; Pseudomonas fluorescens and Bacillus sp., that is most effective in depressing pathogen is Trichoderma sp. with inhibitory activity equal to 83,98% to Phytophthora sp. (A) and 82,18% to Phytophthora sp. (B) at PDA media. Secondary metabolite released by fourth of antagonist microbe depress both pathogen cause of pod rot disease of cacao at PDA media.
Pengaruh Konsentrasi dan Waktu Penyemprotan Pupuk Organik Cair Super ACI terhadap Pertumbuhan dan Hasil Jagung Manis RAHMI, ABDUL; -, JUMIATI
AGRITROP Vol. 26, No. 3 September 2007
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Abstract

The objectives of experiment were: (1) to understand of effect concentration and timing of application of SuperACI foliar organic fertilizer, and (2) to determined of concentration and timing application of Super ACI foliarorganic fertilizer to sweet corn. The experiment was conducted at Rawa Makmur Village, Palaran Sub District,Samarinda City, on July 2004 until October 2004. The experiment design used was Completely Randomized BlockDesign in Faktorial Experiment 4 x 3 with three replications. The first factor was concentration of Super ACI (K)consisted 4 levels, namely: no Super ACI application (k0), 0,71 ml l-1 water (k1), 1,43 ml l-1 water (k2), and 2,15ml l-1 water (k3). The second factor was timing of application (W) consisted 3 levels, namely : 12, 24, and 36 daysafter planting (w1), 15, 30, and 45 days after planting (w2), and 18, 36 and 54 days after planting. The result ofexperiment showed that: (1) the concentration of Super ACI was significantly on the plant height at 42 days afterplanting, blooming time of male and female, harvest time, length of cob, diameter of cob, weight of cob, and affectedsignificantly on the yield of cob. The highest of cob yield namely 8,77 ton ha-1 was achieved on 1,43 ml l-1 waterof Super ACI; (2) timing of application was no significant on the plant height at 14, 28, and 42 days after planting,blooming time of male and female, harvest time, length of cob, diameter of cob, weight of cob, and yield of cob;and (3) no interaction between concentration and timing of application of Super ACI foliar organic fertilizer on theall parameters.
TRANSFORMASI GEN ALBUMIN BUNGA MATAHARI (HELIANTHUS ANNUUS L.) PADA TANAMAN KEDELAI MENGGUNAKAN VEKTOR AGROBAKTERIUM TUMEFACIENS LBA4404 (PAL4404, PSW600) SECARA IN VITRO SUBERATA, I WAYAN
AGRITROP Vol. 26, No. 2 Juni 2007
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Abstract

Usages of A.tumefaciens for the purpose of including DNA sunflower albumine into soybean cell, constituted of natural ability of A. tumefaciens to trasformation in specific form of DNA plasmid (T-DNA) into crop cell later, and then integrate at mains crop cell genome. Result of gene cloning of albumine grown at bacterium of E.coli, then carried over by A. tumefaciens LBA4404, passing method of triparental mating. A. tumefaciens LBA4404 (pAL4404, pSW600) yielded later, then transformation at soybean by in vitro. Result of analysis of transformation at soybean of transgenic by in vitro, can be proved with testing its resilience to gene activity of GUS-its and canamisin.
MEMPELAJARI PERBANYAKAN PAKU ATA (LYGODIUM CIRCINNATUM (BURN. F.) SWARTZ) MELALUI KULTUR SPORA (STUDY ON DOMESTICATION OF LYGODIUM CIRCINNATUM (BURN. F.) SWARTZ TO EXCEED SPORE CULTURE) YUSWANTI, HESTIN; DWIYANI, RINDANG; PUTRI DARMAWATI, IDA AYU
AGRITROP Vol. 29, No. 2 Juni 2010
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Abstract

This research was conducted at Tissue Culture Laboratory of Agricultural Faculty, Udayana University, from May to October 2009. The aim of this Study to acquired the best in vitro medium that was to added plant growth regulator. The results showed that plant growth regulator kinetin significantly affected to germination and protallus formation of ata fern. The M1 nedium treatment the fastest of germination formation was 19,33 day after showing (das) while the protallus formation the fastest to M3 medium was 36,17 das. In description the fastest sporofit formed to founded in M3 too (122 das).
Efek Mulsa Jerami Padi dan Pupuk Kandang Sapi terhadap Pertumbuhan dan Hasil Bawang Merah di Daerah Pesisir MAYUN, IDA AYU
AGRITROP Vol. 26, No. 1 Maret 2007
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Abstract

The objective of this experiment was to study the effect of mulching and organic fertilizer on growth and yieldof shallot (Allium ascalonicum L.) in coastal seaboard. The experiment was arranged in Randomized CompletelyBlock Design (RCBD) with two treatments. First factor are mulching with two levels: without mulch (M0) and withmulch (M1). Second factor are dosages of organic fertilizer: without fertilizer (P0), 10 T Ha-1 fertilizer (P1), 20 THa-1 fertilizer (P2), 30 T Ha-1 fertilizer (P3), 40 T Ha-1 fertilizer (P4), and 50 T Ha-1 fertilizer (P5). The experimenttreatment was arranged by three replications. The data were analysis by variance and LSD analysis, correlationanalysis, and regression analysis. The results showed that the interaction effects of the mulching and organic fertilizeron growth and yield of shallot were significantly different , except on the 10 T Ha-1 (P1) to 30 T Ha-1 fertilizer(P3) the treatment was no effect on total leafs per hill in without mulch (M0). The highest yield of bulb was 7.78Q Ha-1 without mulch (M0) and 12.27 Q Ha-1 with mulch (M1). The effect of mulching was increase the yield was35.13 %.
Pengaruh Jenis Pupuk Kandang dan Jarak Tanam terhadap Pertumbuhan Gulma dan Hasil Jagung Manis ARI MAYADEWI, NI NYOMAN
AGRITROP Vol. 26, No. 4 Desember 2007
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Abstract

The experiment aimed to find out the effect of different manure materials and proper corn plant spacing on weedgrowth and sweet corn yield. The experiment was conducted in Agricultural Training, Research and Development(ATRD), Gadjah Mada University. The experiment was a factorial experiment in a split plot design with threereplications. As the main treatment was different manuring, consisting of (1) no manure, (2) cow manure, (3) goatmanure, and (4) chicken manure. Plant spacing consisting of : (1) 100 cm x 20 cm, (2) 50 cm x 40 cm, and (3) 80cm x 25 cm, served as sub treatments. The results showed a significant interaction between manuring and plantspacing with respect to weed growth and sweet corn yield. The lowest weed dry weight when corn plants werespaced at 50 cm x 40 cm, and chicken manuring was given. Chicken manuring produced the highest ear yield,162.43 g/plant; mean while, plant spacing of 50 cm x 40 cm produced the highest ear yield, amounting to 154.44g/plant. Chicken manuring to sweet corn plants spaced at 50 cm x 40 cm gave the largest marketable ears, 11.567t/ha.
Memperpanjang Kesegaran Bunga Potong Krisan (Dendranthema grandiflora Tzvelev.) dengan Larutan Perendam Sukrosa dan Asam Sitrat WIRAATMAJA, I WAYAN; GEDE ASTAWA, I NYOMAN; DEVIANITRI, NI NYOMAN
AGRITROP Vol. 26, No. 3 September 2007
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Abstract

Research on prolonging vase life of chrysanthemum aimed to recognize some concentration of sucrose andcitric acid applied on solution to prolong vase life of chrysanthemum. Randomized Block Design was applied onthis research with two factors. First factor was concentration of sucrose, consisted of four levels which were 0, 2,4, and 6 percent of sucrose. Second factor was concentration of citric acid, consisted of four levels which were0, 200, 400, and 600 ppm of citric acid. All combination treatments were replicate two times. Variables whichwere observed in this experiment i.e.: vaselife, percentage of full bloom, percentage of flower wilting, and totalof absorbed solution. The results showed that the longest vase life of chrysanthemum cut flower was found onsample treated by 2.70% of sucrose combined with 400 ppm of citric acid. The longest vase life was 13.02 daysor 6.02 days longer than control.
Stabilitas Hasil Galur Baru Padi Sawah Preferensi Konsumen Sumatera Barat ZEN, SYAHRUL
AGRITROP Vol. 26, No. 1 Maret 2007
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Abstract

Total rice field area in West Sumatera is 221.165 ha. The largest portion of irrigated rice is on 0 – 1200 m asl.The major preference of Indonesia rice consumers, the West Sumatera consumers prefer high amylose content rice.The availability of rice variety with high amylose is very limited; consequently, the dominant varieties planted bythe farmers were Cisokan and IR 42 that has been cultivated for more than 1 0 years. By single variant analyze forgenotype yield data were absolutely different. According to average yield of 21 grows environment, SPR85163-5-1-2-4 line and S4362f-Kn-2-1-2 showed the sheet for each line 10 and 18% higher than Cisokan. The yield of bothvariants were 4.68 – 7.62 t/ha and 3.24 – 7.83 t/ha, with average of yield was 6.06 and 6.48 t/ha, whereas Cisokanyield was 3.32 – 7.89 t/ha with average of yield was 5.49 t/ha. According to data of turn yield and cross average ofenvironment grow SPR85163-5-1-2-4 line was superior in yield capacity and adaptation then Cisokan. In certainenvironment grow; line S4362f-Kn-2-1-2 had the lower sheet yield than Cisokan and SPR85163-5-1-2-4. Stabilityparameter analyze indicate that all genotype that were tested gave the stable respond to chance of condition in21 environment grow, SPR85163-5-1-2-4 line was more stable than line S4362f-Kn-2-1-2, that was indicated bycontribution of each. Interaction of variant component Genotype x environment (interaction of G x L) for eachcomponent was 15 and 23 %. The line of SPR85163-5-1-2-4 was able to yield 20% higher than line S4362f-Kn-2-1-2 and 26% Cisokan variety at Guguk environment (850 a above se level), while SPR85163-5-1-2-4 line has thebest result until 700 m above sea level.
KARAKTERISTIK TANAH PADA LAHAN KERING DI DESA TISTA KECAMATAN BUSUNGBIU KABUPATEN BULELENG (THE SOIL CHARACTERISTICS ON DRY LAND AT TISTA VILLAGE, BULELENG REGENCY) KUSMIYARTI, TATI BUDI
AGRITROP Vol. 29, No. 1 Maret 2010
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Abstract

The purpose of the research was to know the characteristics and classification of soil on dry land at Tista village, Buleleng Regency. Soil survey methods and analysis in laboratory were used in this research. Some parameters of soil properties were observed i.e. soil morphology in the field, physical, chemical, and mineralogical soil properties in the laboratory. Soil classification based on Soil Taxonomy system by using Keys to Soil Taxonomy (2003). The soil characteristic on Dusun Tista, Tista village are: solum depth is deep; clay loam texture and c-organic are high; CEC is high; base saturation is high. The soil characteristic on Dusun Sepang Kelod, Tista village are: solum depth is deep; loam texture and c-organic are high; CEC is high; base saturation is high; and Al + ½ Fe is high. There were two soil families in Tista villages, namely: Andic hapludepts, fine loamy, mixed, isohyperthermic, and Typic hapludepts, fine loamy, mixed, isohyperthermic.

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