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Pengujian Beberapa Varietas Unggul Padi (Oryza sativa L.) terhadap Tingkat Serangan Hama Penggerek Batang IDA BAGUS KADE SUASTIKA; IDA AYU PUTRI DARMAWATI; NI PUTU SUTAMI; I WAYAN SUNANJAYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Testing of Several Hight Yielding Varieties (Oryza sativa L.) to The Attack Level of Stem Border tests The purpose of the study was to determine the level of stem borer attack on several high-yielding varieties of rice cultivated in Bali to obtain varieties resistant to stem borer as a substitute for Ciherang. The study cultivated various superior rice varieties, namely Inpari 19, Inpari 40, Inpari blas, Situ Bagendit, and Ciherang varieties for comparison. The incidence and severity of stem borer attacks were assessed in the field using the diagonal random sampling method. The sample measurement of 10 plant clumps was carried out diagonally on the plot area in the form of a natural plot measuring 400 m2. The appropriate design was 1-factor randomized block design with 5 treatments and 5 replications. The data collected was related to the percentage of rice stem borer in the vegatative phase 2-6 weeks after planting (WAP) “Sundep” (% dead hearts) and the generative phase 8-10 WAP “beluk” (% white ear heads). The measurenent of the attack level is based on the tehnical instuctions for observing and reporting plant-disturbing organisms and climate change impacts (OPT-DPI) of the Ministry of Agriculture in 2018 as well as the production of tons per hectare. The analysis used a diversity fingerprint (ANOVA) and continued with a different test for the mean value of 5% LSD. To see the development of the rice stem borer, it was further analyzed by regression analysis. The results showed that the percentage of stem borer attack on Inpari 40 and Inpari blast varieties was known to be 0% each with a square root value (? (x + 0.5) = 0.71%. So the Inpari 40 and Inpari blas varieties are candidates for resistant varieties to replace Ciherang. The level of resistance of varieties such as Inpari 19, Sit Bagendit, and Ciherang to stem borer cannot be determined because the attack is still below the economic threshold (<10%).
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.
Induksi Kalus dengan 2,4-Dpada Mikropropagasi Tanaman Stroberi (Fragraria x ananassa Duch cv. Rosalinda) I.A. PUTRI DARMAWATI; RINDANG DWIYANI; HESTIN YUSWANTI
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Callus Induction with Aplication of 2,4-D in Micropropagation of Strowberry(Fragraria xananassaDuch cv. Rosalinda). Strawberryis grown and well planted in many countries and has ahigh economic value. In Bali,thecentraproduction is in Pancasari Village,Sukasada District,BulelengRegency. The limited number and quality of seedling are the problems currently faced bystrawberry farmers at Pancasari Village. Seedlings produced by conventional propagation are limitedand are not able to meet the needs of seedling available for planting area. This study offers a solution tothe problem by applyingmicropropagationtechnique through callus induction. The research aim is tofind the optimal concentration of 2,4 - D to induce callus of strowberry. Callus that forms will be usedas the material for the next growing into young plants regenerated seedlings. This experiment used acompletely randomized design with 2 factors. The first factor was theconcentrations of 2,4 - D withfive levels of treatments, i.e.0 ; 0.5, 1.0, 1.5, and 2.0 ppm and the second factor was type of explantsused, including tip , middle and base of leaf. Results showed that2,4-D concentration of 1 and 2 ppmapplied on the base of the leaf is able to induce 100 % callus at 14 days after planting. Callus formedwas greenish white. The callus will be regeneratedinto plantlets or young plants.
Identifikasi dan Karakterisasi Tanaman Pewarna Alam Tenun Pegringsingan Desa Tenganan IDA AYU PUTRI DARMAWATI; GEDE WIJANA; A.A. MADE ASTININGSIH; IDA AYU MAYUN; NI LUH MADE PRADNYAWATHI
Agrotrop : Journal on Agriculture Science Vol 6 No 1 (2016)
Publisher : Fakultas Pertanian Universitas Udayana

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The Characterization and Identification of Plant Natural Dye Tenun PegringsinganTenganan Village. The aim of the research was to know the dyeing process and the kind ofplant dyes are used in the manufacture of dye Pegringsingan in the village of Tenganan andthe plant characterize morphological and agronomic. The method used in this study wasexplorative and survey method. Implementation of the study consisted of three phases ofactivities, namely (1) the collection of secondary data, (2) surveys various plants natural dyeused for tenun pegringsingan and distribution, and (3) the identification of morphological andagronomic characters. The results showed there were four plant dyes for tenun pegringsingani.e sunti or noni (Morinda citrifolia) as a red dye, walnut (Aleurites moluccana (L.) Willd ) asa yellow dye, kepundung white or red (Baccaurea racemosa Var. white, Baccaurea racemosaVar. red), taum (Indigofera sp) producing a blue color.
Respon Pertumbuhan Planlet Anggrek Dendrobium sp. Melalui Aplikasi Ekstrak Tauge dan Air Kelapa pada Media Organik HESTIN YUSWANTI; IDA AYU PUTRI DARMAWATI
Agrotrop : Journal on Agriculture Science Vol 3 No 1 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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The Growth Response of Orchid Plantlets of Dendrobium sp. by Aplicación of Bean Sprouts Extract and Coconut Water in Organic Medium The aim of this researh is to obtain the effect of coconut water and bean sprouts extract and the best combination added to organic medium on growth of orchid planlets in vitro. The experiment was conducted at Tissue Culture Laboratory of Agriculture Faculty, Udayana University, Pegok Denpasar from Mei until Oktober 2012. The research design was Completely Randomized Design (RAL) with ten treatments and six replications. The results of this ezperiment showed that addition of coconut water at concentration of 150 ml/l and bean sprouts extract of 50 ml/l resulted in the best growth of orchid planlet which includes the height of plantlets (4,10 cm), the number of leaf (3,33 leaves), length of root (1,07 cm). The total fresh weight of plantlet was 0,20 g and total oven dry-weight of plantlet was 0,021 g.
Budidaya Kentang Ramah Lingkungan Melalui Aplikasi Pupuk Organik Shisako I.A.PUTRI DARMAWATI; GEDE WIJANA
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

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Field experiment was conducted at Antapan village, Baturiti, Tabanan Regency. The experimentaim was to study the optimals of Shisako organic fertilizer dosage for growth and yield of potato. Theexperiment utilized Randomized Complete Design, one factor with six rated of Shisako organic fertilizerdosage treatments. The dosage treatments were: D0 = 0 ton/ha, D1 = 2,5 ton/ha, D2 = 5 ton/ha, D3 =7,5 ton/ha, D4 = 10 ton/ha and D5 = 12,5 ton/ha. The results showed that Shisako organic fertilizerdosage was highly significantly different to plant height, leaf number, leaf area index, tubers number perhill, tuber fresh weight per hill and fresh tubers weight per hectare than control. The optimum of Shisakofertilizer dosage treatment for microtuber Granola of potato cultivars from this research was found at6,08 ton/ha with the maximum wet weight tubers was 5,13 ton/ha.
Identifikasi dan Karakterisasi Sumber Daya Genetik Buah-buahan Lokal di Kabupaten Jembrana I PUTU DIAN PRATAMA; I GUSTI ALIT GUNADI; IDA AYU PUTRI DARMAWATI; I NYOMAN RAI
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.376 KB) | DOI: 10.24843/AJoAS.2018.v08.i01.p12

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Identification and Characterization of Plant Genetic Resources Local Fruits in Jembrana. Fruits are one source of nutritious food that have diverse functions such as: source of vitamins, minerals, and fiber needed in the daily menu. Fruits are used as community consumption, tourism needs, inter island trade, as well as for religious activities, even thoughthere are local fruit are used in “usadha”by generations. Jembrana Regency has various types of fruits. This study aims to identify the genetic resources of fruits in Jembrana Regency. This research was conducted in five stages: (1) collected secondary data, (2) surveyed the types of genetic resources and their distributions, (3) identification of morphological and agronomiccharacters, (4) determined superior fruit, and (5) compiled geographic map the distribution of genetic resources of local fruits. The result of research found 38 species and 53 sub-types of local fruit plants, with 6 types of superior fruit, 12 type of rare fruit, 17 types of fruit for upakara, and 9 types of fruits for medicine. Based on the survey conducted in Jembrana District, 41 geographical distribution maps of local fruits can be compiled.
Perkecambahan Asimbiotik Biji Anggrek Dendrobium bicaudatum pada Media dengan Penambahan Ekstrak Tomat secara In Vitro NI WAYAN SURIANTARI; IDA AYU PUTRI DARMAWATI; HESTIN YUSWANTI
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p05

Abstract

Asymbiotic Germination of Dendrobium bicaudatum Orchid Seeds on Media with In Vitro Addition of Tomato Extract. Dendrobium bicaudatum is a natural orchid that needs to be preserved. Orchid seeds propagation naturally (symbiotic) has a low success rate. Orchid seeds do not have an endosperm. Asymbiotic germination with in vitro culture techniques can be an alternative solution for the propagation of orchid seeds. This study aimed to determine the effect of giving tomato extract on modified media on the asymbiotic germination of Dendrobium bicaudatum orchid seeds. This research used the Completely Randomized Design with five treatments of tomato extract concentration, namely 0%, 5%, 10%, 15%, 20%, with 4 replications. The variables observed in this study were the time and percentage of phase 1; time and percentage of phase 2; time and percentage of phase 3; time and percentage of phase 4; time and percentage of phase 5; and time and percentage of phase 6. The results showed that the tomato extract treatment had a significant or very significant effect on the germination of Dendrobium bicaudatum orchid seeds and the best treatment for the fastest and the highest percentage of germination from protocorm to First Leaf Primodium was the addition of tomato extract with a concentration of 15% or 20%, and a concentration of 0% tomato extract for the early stages of swelling of the embryo.
Stimulasi Tunas Eksplan Kalus Cendana (Santalum album L.) Secara In Vitro dengan 2-Isopentenyladenine (2-iP) Ida Ayu Sri Dewi Adriani; Rindang Dwiyani; Ida Ayu Putri Darmawati
Nandur Vol 2 No 1 (2022)
Publisher : Fakultas Pertanian, Universitas Udayana

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Abstract

Sandalwood (Santalum album L.) grows naturally in Indonesia, especially in Nusa Tenggara Timur area and this is one of 22 Santalum genus species in the world. Aim of the study is to determine the effect of 2-iP and the best concentration of 2-iP to stimulate callus explant shoots of Santalum album L. This studies carried out from September 2019 up to February 2020, the explants used were callus from bud culture from previous studies. The explants were planted at the Tissue Culture Laboratory, Faculty of Agriculture Udayana University Pulau Moyo street, Denpasar. This study used a completely randomized design (CRD) with 5 treatments, namely: (2-iP 0.0 ppm, 2-iP 0.5 ppm, 2-iP 1.0 ppm, 2-iP 1.5 ppm, 2-iP 2.0 ppm). The results showed that the addition of ZPT 2iP on WPM + 0.01 ppm NAA had a significant and very significant effect on the number of shoots, number of leaves and shoot length and had no significant effect on the emergence of shoots. The M1 treatment (WPM + 0.01 ppm NAA + 0.5 ppm 2-iP) showed the fastest time (1,55 MST) for the emergence of shoots on sandalwood callus explants. Treatment without the addition of zpt 2-iP (M0) could increase the number of shoots (2.87 pieces), number of leaves (5.59 strands) and shoot length (1.64 cm).
PROSPEK PENGEMBANGAN UNIT USAHA BIBIT WANI TANPA BIJI HASIL METODE GRAFTING SEBAGAI UNIT USAHA INOVASI KAMPUS N.L.M. Pradnyawathi; I.K. Sardiana; N.N. Darmiati; I.A.P. Darmawati
Buletin Udayana Mengabdi Vol 21 No 3 (2022): Buletin Udayana Mengabdi
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BUM.2022.v21.i03.p10

Abstract

The difficulty in obtaining seeds and the high price of seedlings prompted the implementation of the Campus Intellectual Product Business Development Program (PPUPIK) for superior local fruit seedlings of seedless BalineseWani at the Faculty of Agriculture, Udayana University. In order to support the successful development of the Seedless Wani Seed Business Unit, it is necessary to have a more in-depth study using a SWOT analysis. The research was conducted in Banjar Duren Taluh, Belimbing Village, Pupuan District, Tabanan Regency in April - August 2020. The study was conducted with a SWOT analysis to see the performance of business units by determining a combination of internal factors (strength and weakness) with external factors (opportunity and threats). Furthermore, the EFI and EFE matrices are made. The results of the two matrices are then entered into a qualitative model, namely the SWOT matrix to formulate the company's competitive strategy. Based on the results of the EFE and EFE value analysis, the Seedless Wani Seed Business Unit is in cell one where in this position the business unit can implement a growth strategy with vertical integration by taking over the supplier function or by taking over the function of the distributor. This is the main strategy for companies that have a strong and highly competitive market position. Keywords: Bali local fruit, Seedless wani seedling, SWOT analysis