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I MADE SUDANA
Program Studi Agroekoteknologi Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry

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Pengaruh Jenis Formula Media Pembawa dan Bakteri PGPR (Plant Growth Promoting Rhizobacteria) Dalam Memacu Pertumbuhan dan Menekan Penyakit Blas (Blast) pada Tanaman Padi Beras Merah Lokal Jatiluwih TRIWANTO NABABAN; I MADE SUDANA; I DEWA PUTU SINGARSA
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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The Effect of PGPR (Plant Growth Promoting Rhizobacteria) Bacteria Carier Media Formulas in Growth Stimulate and Suppressing The Presece of Blast Diseases in Jatiluwih Local Brown Rice Plants. This study aims to determine the effect of PGPR (Plant Growth Promoting Rhizobacteria) bacteria carier media Formulas in growth stimulate and suppressing the presece of blast diseases in jatiluwih local brown rice plants. Formulas will be tested directly in the field to determine the best formula to stimulate growth and suppress blast disease in local brown rice jatiluwih. The formulas tested were sand, flour, liquid PPG, compost and control which was given 1% mixture of PGPR bacteria 4 kinds of rhizobacteria, namely Serratia marcescens, Achromobacter spanius, Providencia vermicola, Myroldes adoratimimis. 1 clump of seeds immersed in the formula for 24 hours then sowing in the field. each treatment repeated 5 times. The planting pattern in this study used a randomized block design (RBD) and observed variables ranging from growth to yield. All data obtained were analyzed quantitatively using analysis of variance (ANOVA) at the 5% level. The results showed that all treatments using the formulas could stimulate the growth and resistance of brown rice plants to blast disease then the yield of brown rice plants could be increased. Liquid PPG and rhizobacteria PGPR formulas that have better capabilities than other formulas.
Tingkat Perkembangan Nematoda Puru Akar (Meloidogyne spp.) pada Berbagai Jenis Tanaman Tomat Menggunakan Pengendalian Ekstrak Daun Kirinyuh KIKI AMELIA RAMADHANY; I MADE SUDANA; I DEWA PUTU SINGARSA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.3, Juli 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Development Rate of Root-Knot Nematode Meloidogyne spp. in Various Types of Tomato Plants Controlled with Siam Weed Extract The tomato plant, which is included in the Solanaceae family, is an annual herbaceous plant with a height between 70-200 cm, depending on the variety. Susenas (2012) reported that the average growth of tomato consumption in Indonesia in 2007-2011 is 2.1%. Based on data from the Central Statistics Agency (2005) in Taufik et al. (2014), tomato production in 2012 experienced a decrease in the amount of production from the previous year (2011), from 954,046 tons to 893,463 tons. Meanwhile, domestic demand for tomatoes in 2012 amounted to 904,000 tons, resulting in 10,537 tons of imported tomatoes (Pusdatin, 2014). One of the causes of the decline in tomato production is the disruption of plant pests, leading to failure. One of the diseases that attack tomatoes at all stages of growth is a root-knot disease caused by the nematode Meloidogyne spp. that live in plant nodules. Control of Meloidogyne spp. was done by using trap crops, crop rotation, and so on. In this study, we used biological control, using Siam weed leaf extract (Chromolaena Odorata L.). The results showed that the high level of development in tomato plant varieties could be known through the research data, including the number of roots and egg masses. The number of eggs indicated that the yellow cherry variety was higher than the varieties of red cherries, swadesi, serpo, and agata.
Aplikasi Beberapa Jenis Pupuk Organik Kemasan untuk Menekan Penyakit Akar Gada dan Meningkatkan Pertumbuhan Tanaman Kubis (Brassica oleracea L.) NI MADE PRITIYANTI DEWI; I MADE SUDANA; A. A. NGURAH GEDE SUWASTIKA; I KETUT SUADA
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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Application Some Types of Organic Fertilizer in a Pack To Suppress Clubroots and Improve Cabbage (Brassica oleracea L.) Plant Growth Cabbage is one type of leaf vegetables from subtropics area that has been known for a long time and cultivated in Indonesia. One of the hardest cabbage diseases is clubroots caused by the Plasmodiophora brassicae pathogen. This pathogen can cause high damage to cabbage plants. The used of synthetic pesticides is less success in the implementation, and caused environmental pollution, especially the soil, this study tried to control clubroots in the cabbage by using 8 types of organic fertilizer in a pack. This study used a Completely Randomized Design (CRD) with 9 treatments including controls with three replications. The results obtained four best treatments that were effective in suppressing clubroots while increasing the leaf height, leaf amount, leaf area, and maximum dry weight of the plants, that three best treatments were organic fertilizer PSBN, Multitonik, and Biotonik. The best treatment to suppress clubroots is found in organic fertilizer PSBN, Multitonik, and Biotonik which has the lowest percentage of ulcer attack by 33,33-55,56% compared to control (100%).
Tingkat Fekunditas Nematoda (Meloidogyne spp.) pada Beberapa Tanaman yang Tergolong Familia Solanaceae DWI RIZKYA WULANDARI; I MADE SUDANA; I DEWA PUTU SINGARSA
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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Fecundity of Nematode (Meloidogyne spp.) in Some Plants Belonging to the Solanaceae Family The Solanaceae family is a plants that has a function to meet human food. Although the production of the Solanaceae Family in Indonesia is quite high, it hasnot been able to fulfill the Indonesian Population needs. This is caused by severalfactors and one of them is the attack of pests and diseases that can cause crop failure.Pest that causes a decrease in the Solanaceae family is root bran nematodes,(Meloidogyne spp.) The purpose of the study is to determine the level of penetrationand fecundity of nematodes in several plants belonging to the Solanaceae family, andto obtain species host plants that are less favored than the plants tested Thar can beused as an alternative control of nematoda. This study using a CompletelyRandomized Design (CRD), with 4 types of treatment each using 6 replications with2 research objects to obtain 48 units/plant pots. The results is penetration rate andfecundity rate were highest in tomato plants, then in eggplant plants, chili plants, andthe lowest in cayenne. The result can be used as an alternative to reduce thepopulation of nematoda (Meloidogyne spp.) in the field.
Penentuan Fase Kritis Tanaman Kacang Panjang (Vigna sinensis L.) terhadap Infeksi Bean Common Mosaic Virus (BCMV) NI LUH OCTAVIANI; I MADE SUDANA; TRISNA AGUNG PHABIOLA
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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Determine of the Critical Phase of Long Bean Plants (Vigna sinensis L.) against Infection of Bean Common Mosaic Virus (BCMV)This study aims to search the critical phase of long bean plants (Vigna sinensis L.) against infection of Bean Common Mosaic Virus (BCMV). The method used is Indirect ELISA (Indirect enzyme-linked immunosorbent assay). This research activity includes variations of symptoms on the long bean plants samples, the incidence of the disease, calculation of yields, the determination of the critical times of the plant, Indirect ELISA serology testing, and data analysis. Design used was a randomized block design (RBD) with seven treatments and four replications.The results showed that the variation of symptoms long bean plants infected BCMV that mosaic, vein banding, malformation of the leaves, stunted and chlorosis. Higher incidence of disease inoculation treatment 2 weeks after planting (WAP) is 91%. Long bean plants are attacked by BCMV the highest yield losses amounted to 93.54% at 2 WAP, so the critical phase of the plant is on the treatment of long bean 2 WAP. Based on these studies need to be done at the beginning of growth and, if already infected plants in early growth, eradication needs to be done so as not to be a source of inoculum.
Co-Authors Anak Agung Ngurah Gede Suwastika DWI RIZKYA WULANDARI I DEWA PUTU SINGARSA I Ketut Suada KIKI AMELIA RAMADHANY NI LUH OCTAVIANI NI MADE PRITIYANTI DEWI TRISNA AGUNG PHABIOLA TRIWANTO NABABAN