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Yuni Ratna
Fakultas Pertanian Universitas Jambi
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Pengaruh Konsentrasi Subletal Deltametrin terhadap Nutrisi dan Pertumbuhan Tanaman Padi Yuni Ratna; Y. Andi Trisyono; Witjaksono Witjaksono; Didik Indradewa
Jurnal Perlindungan Tanaman Indonesia Vol 17, No 2 (2011)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.215 KB) | DOI: 10.22146/jpti.9811

Abstract

Increasing the reproductive capacity through increasing plant growth and nutrition is one plausible mechanism of resurgence. This research was intended to determine the effect of deltamethrin on plant vigor and nutrition contents. The experiment was carried out outdoor. The treatments tested were deltamethrin (50 ppm), buprofezin (100 ppm), and control (water). Insecticide applications were applied one time (at age 26 d or 50 d) and two times (at age 26 and 50 d). Deltamethrin applications as many as two times did not increase the total chlorophyll and the photosynthesis rate, nutrients (total nitrogen, total protein, total sugar, total reducing sugar at aged 26 d, and sucrose), growth (plant height and number of tillers), and yield (number of panicles). However, application of deltamethrin at aged 26 d increased the amount of asparagine. Asparagine is known to be associated with the feeding rate of Nilaparvata lugens stimulation. Therefore, increasing level of asparagine after application of deltamethrin at sublethal concentration was considered as one of the factors that might be involved in the mechanism of N. lugens resurgence.Salah satu mekanisme resurjensi adalah peningkatan reproduksi hama melalui peningkatan nutrisi dan pertumbuhan tanaman. Penelitian ini dimaksudkan untuk melihat pengaruh deltametrin terhadap kandungan nutrisi dan vigor tanaman. Pengujian dilakukan di lapangan. Perlakuan yang diuji adalah deltametrin 50 ppm, buprofezin 100 ppm, dan kontrol (air). Aplikasi insektisida dilakukan satu kali masing-masing pada umur tanaman 26 dan 50 hst dan dua kali pada umur 26 dan 50 hst. Aplikasi deltametrin sebanyak dua kali tidak meningkatkan total klorofil dan laju fotosintesis, nutrisi (total nitrogen, total protein, total gula, total gula reduksi pada 26 hst, dan sukrosa) kecuali asparagin, pertumbuhan (tinggi tanaman dan jumlah anakan), dan hasil (jumlah malai) tanaman. Oleh karena asparagin berperan sebagai pemacu laju makan Nilaparvata lugens, maka peningkatan kadar asparagin tanaman setelah aplikasi konsentrasi subletal deltametrin diduga sebagai salah satu faktor yang terlibat dalam mekanisme resurjensi N. lugens
Pengaruh Konsentrasi dan Frekuensi Aplikasi Deltametrin terhadap Resurjensi Nilaparvata lugens Yuni Ratna; Y. Andi Trisyono; Witjaksono Witjaksono; Didik Indradewa
Jurnal Perlindungan Tanaman Indonesia Vol 16, No 1 (2010)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11737

Abstract

Nilaparvata lugens is the type of insect pest whose resurgence is induced by insecticides. Deltamethrin is an insecticide commonly used by farmers to control pests other than N. lugens on rice. This research was conducted to determine the effect of sublethal concentrations and application frequency of deltamethrin on subsequent growth and development of third instars of N. lugens. The selected concentrations were 50 ppm (LC25) and 225 ppm (LC50), and the frequency of applications ranged 1–3 times. Each concentration was applied to the third instars of the parent generation (one time), the parent and their first offspring (two times) and the parent, their first and second offspring (three times). N. lugens used in this experiment was the susceptible population derived from the laboratory population. Application of deltamethrin on two and three consecutive generations increased nymphal mortality, the population of offspring produced by the surviving adults, and the ratio of treated and control females in producing the offspring. Increasing the frequency of application increased the ratio, and the females received three applications produced nymphs 2.65 times more than the control females. The two sublethal concentrations did not have significant impact on the above parameters. Furthermore, the interaction between concentration and frequency of application was absent. These findings suggest that several applications of deltamethrin at sublethal concentrations would contribute to the resurgence of N. lugens.
Resurjensi Serangga Hama Karena Perubahan Fisiologi Tanaman dan Serangga Sasaran Setelah Aplikasi Insektisida Yuni Ratna; Y. Andi Trisyono; Kasumbogo Untung; Didik Indradewa
Jurnal Perlindungan Tanaman Indonesia Vol 15, No 2 (2009)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11766

Abstract

The use of insecticides at sub-lethal dosage may induce insect resurgence. Factors contributing the insect resurgence include mortality of natural enemies, mass migration, improvement in plant nutrition, or increase in insect reproductive capacity which works individually or in combinations. This article provides a comprehensive review from recent publications, particularly those dealing with the impact of insecticide applications on plant nutrition and insect reproduction, and function to upgrade our knowledge since most publications in Indonesia were made in the 1980s. The insecticides together with its metabolites and conjugates could function as plant growth regulators, increase absorption, improve the nutritional content, influence the biochemical and ultrastructural aspects of the plant, or protect the plant from stresses. An increase in the nutritional value of the plant would increase feeding rate, fecundity, and longevity of the insects. Furthermore, insecticides could also directly stimulate the reproductive capacity of the insect. All of these impacts might end up in increasing the population of insect after application of certain insecticides. Research findings related to the elucidation on the mechanism underlying the phenomenon of resurgence could be used in considering the registration of new insecticides or extension of the existing insecticides.
PERTUMBUHAN GULMA ALANG-ALANG (Imperata cylindrica L. Beauv.) PADA BERBAGAI KONDISI KEPADATAN SETELAH PEMOTONGAN DI PETROCHINA INTERNATIONAL JABUNG LTD. Yuni Ratna; Elly Indra Swari; Alan Firmansyah
Jurnal Media Pertanian Vol 7, No 1 (2022): April
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v7i1.135

Abstract

This research aims to find out the growth of I. cylindricaweed after cutting at various density conditions so that it can be determined the interval of precise control mechanically in the pipeline PetroChina International Jabung Ltd. The research was conducted by making random sample plots in various conditions of I. cylindrica population density. There were three population densities of I. cylindricaobserved, namely dense,mediun and rare. The results showed that height,  number of tillers and dry weight of I. cylindrica were higher in dense and medium population densities than rare population densities. There is a shift in the dominant weed species in each condition of population density after cutting. The community of vegetation before and after cuttingat dense population density was classified as homogeneous with C value of 78.05%, while at medium and rare population density it wasclassifiedas heterogeneous with  C value of < 75%.Keywords:Imperata cylindrica, growth of weed, population density, species shift
Perkembangan Resistensi Wereng Batang Padi Cokelat (Nilaparvata lugens Stal) di Sentra Produksi Padi Kabupaten Tanjung Jabung Barat dan Tanjung Jabung Timur Yuni Ratna; Wilma Yunita; Elly Indra Swari; Dea Diyan Putri; Rahayu Hermita Sinaga
Jurnal Media Pertanian Vol 7, No 2 (2022): Oktober
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v7i2.158

Abstract

The research took place from June-October 2020 at the rice production centersin Tanjung Jabung Barat and Tanjung Jabung Timur regency Jambi province. The resistance test of Nilaparvata lugens to the active ingredients of insecticide was carried out at the Pesticide and Weed Laboratory, Faculty of Agriculture, Jambi University. This study aimed to determine the resistance level of N. lugens of Rawa Medang and Sri Agung population (Batang Asam district, Tanjung Jabung Barat regency), and Parit Culum II and Teluk Dawan population (Muara Sabak district, Tanjung Jabung Timur regency) to the insecticides used. The active ingredients of insecticide tested were abamektin and dimehipo (N. lugens of Rawa Medang and Sri Agung population), and BPMC and fipronil (N. lugens of Parit Culum II and Teluk Dawan population). Mass rearing of N. lugens was carried out at the Pesticide and Weeds Laboratory using Ciherang variety as feed. Insecticide toxicity test on macroptera female adults of N. lugens was carried out by the feed dipping method with two stages, namely preliminary and main tests. Preliminary test was carried out on N. lugens field population 2nd generation (F2), while main test was carried out on field population (F2) and standard population (F41). The observed variables were N. lugens mortality and resistance ratio (NR). Mortality data of N. lugens at 72 hours after insecticide application was analyzed probit using the PoloPlus program. The results showed that N. lugens of Rawa Medang population has been resistant (NR=6.2) to abamektin and indicated to be resistant to dimehipo (NR=1.5), while Sri Agung population was indicated to be resistant to abamektin (NR=2.9) and dimehipo (NR=1.5). N. lugens of Parit Culum II population has been resistant to BPMC (NR=4.94) and fipronil (NR=44.62), while Teluk Dawan population was indicated to be resistant to BPMC (NR=2.76)
Jenis dan Tingkat Parasitasi Parasitoid Larva Plutella xylostella L. pada Tanaman Sawi Hijau (Brassica juncea L.) Syarifah Tuti Alawiyah; Yuni Ratna; Weni Wilia
Jurnal Media Pertanian Vol 8, No 1 (2023): April
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v8i1.170

Abstract

The purpose of this study was to determine the type and level of parasitoidparasitization larvae of P. xylostella on mustard greens (B. juncea). This research was carried out from August to October 2022 in the Lingkar Selatan Village, Jambi City and Tangkit Village, Muaro Jambi Regency. Identification of types of parasitoids and calculation of parasite levels were carried out at the Laboratory of Plant Pests, Faculty of Agriculture, Jambi University. For each green mustard planting area in the two study locations, 3 random sample plots were determined. The technique for determining sample plants uses a systematic random method with a pattern of plant lanes. Sampling of P. xylostella larvae was carried out at the age of 4, 9 and 13 days after planting (DAP). The larvae of P. xylostella were reared in the laboratory to find out the parasitoids that appeared, then identified based on their morphological characteristics. The type of parasitoid larvae of P. xylostella found in both study locations was Cotesia plutellae. The level of parasitoid parasitization in the Lingkar Selatan Village was always higher at various ages of plants with an average of 39.92% compared to Tangkit Village, which was 12.4%.Keywords: mustard greens,P. xylostella, Cotesia plutellae,level of parasitoid parasitization
Kelimpahan Jenis dan Persentase Serangan Serangga Hama Pada Budidaya Padi Gogo Dengan dan Tanpa Tumbuhan Berbunga Yuni Ratna; Wilma Yunita; Elly Indra Swari; Nadia Akmala Zamila
Jurnal Media Pertanian Vol 8, No 1 (2023): April
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v8i1.187

Abstract

The research was conducted at the research farm and laboratory of plant pest, Faculty of Agriculture, University of Jambi. The aim of the research was to study abundance of types and percentage of insect pest attackin upland rice cultivation using flowering plants. There were two treatments, namely the cultivation of upland rice Inpago 5 variety without and with flowering plants. There were 4 experimental plots with an area of 20 m x 10 m each, 2 plots each for cultivation of upland rice with and without flowering plants. The flowering plants used were sesame (Sesamun indicum) and Tagetes sp which were planted around the experimental plots. Variables observed included the type and number of insect pests, the percentage of rice stem borer attacks and the percentage of grain destroying pests. Data on type, number and percentage of plants attacked by pests were tabulated and analyzed descriptively. The number of pests in upland rice cultivation without flowering plants was more fluctuating and reached a peak at the age of 8 and 10 week after planting. The number of rice stem borers, the percentage of stems attacked by stem borers and the percentage of grains attacked were almost always higher in upland rice cultivation without flowering plants. The results showed that there were more types of insect pests on upland rice plants with flowering plants (27 species) compared to those without flowering plants (17 species). The number of insect pests in upland cultivation without flowering plants fluctuated more than upland rice cultivation with flowering plants. The percentage of insect pest attacks on rice stems and grains was lower in upland rice cultivaton with flowering plants than without flowering plants.
Keanekaragaman Serangga Hama Pada Budidaya Padi Dengan dan Tanpa Rekayasa Ekologi Yuni Ratna; Wilma Yunita; Bayu Pambudi
Jurnal Media Pertanian Vol 8, No 2 (2023): Oktober
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v8i2.208

Abstract

This research was carried out on rice fields belonging to farmer in Pudak Village, Kumpeh Ulu District, Muaro Jambi Regency, Jambi Province. The insects found were identified at the Plant Pest Laboratory, Faculty of Agriculture, Jambi University. This study aimed to examine the effect of the application of ecological engineering in rice cultivation on the diversity of rice plant insects. This research was carried out by comparing ecologically engineered rice cultivation techniques with conventional rice cultivation techniques usually used by farmers. There were two experimental plots each for ecological engineering and conventional cultivation techniques with an area of each plot of + 0.65 ha. There were five sample plots measuring 25 m2 which were placed diagonally in each experimental plot. Sesame (Sesamum indicum) and Tagetes sp. used as flowering plants. The variables observed were the species of insects that have the potential to become pests and the percentage of dominant pest attacks. The species and populations of pests as well as the percentage of infected plants were analyzed descriptively. Based on research results, the species of insects that have the potential to become pests were found to be more numerous in conventional rice cultivation (16 species) than in ecological engineering (14 species). The population and attacks of Cnaphalocrosis medinalis were higher in conventional rice cultivation than ecologically engineered rice cultivation, however, the population and attacks of Leptocorixa oratorius were higher in ecologically engineered rice cultivation than conventional rice cultivation.
Karakteristik Morfologi dan Hasil Kedelai Edamame yang Diberi Eco-enzyme dan Pengendalian Gulma Berbeda di Lahan Tropis Nerty Soverda; Elly Indra Swari; Neliyati Neliyati; Yuni Ratna; Herni Dwinta Pebrianti; Dilla Wahyuni
Jurnal Media Pertanian Vol 9, No 1 (2024): April
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v9i1.233

Abstract

Edamame soybeans are a variety of soybeans that act as leaf vegetables that are rich in protein, minerals and vitamins. Edamame soybean cultivation is not yet popular, even though the need and demand is quite large. Eco-enzymes are inputs that play an important role as natural hormones and provide nutrients for plants. Eco-enzyme is an organic product that goes through an anaerobic fermentation process. A decrease in the yield of cultivated plants can be caused by competition with weeds. Several general weed control options have been developed, but appropriate weed control options are needed to ensure production and ecological sustainability. Research was carried out at the Teaching and Research Farm (1°370'129" S, 103°312'0.501"), Faculty of Agriculture, Jambi University. The research started in January and ended in March 2023 using a split plot design, as the main plot was the concentration of eco-enzymes and the weed control method was chosen as the sub-plot. The eco-enzyme treatments specified were 0 ml L-1(e1), 10 ml L-1 (e2), and 20 ml L-1 (e3). Weed control treatment consists of 2 (two) weed control methods, namely uprooted and cutting off. The parameters observed were morphological growth (plant height, number of root nodules, leaf chlorophyll content, and flowering time) and yield potential (number of pods, number of filled pods, and fresh weight of pods). The results showed that the differences in eco-enzyme concentration and applied weed control were not significantly different on morphological parameters (plant height, number of root nodules, and chlorophyll content of edamame soybean leaves 5 WAP) and yield potential parameters (number of pods, number of filled pods, and wet weight pods) edamame soybeans 65 DAP. Weed control through uprooting was able to increase the number of pods (4.39%), the number of filled pods (5.08%), and the wet weight of the pods (9.57%).Key words: eco-enzymes, edamame soybeans, weed control
Resistensi Wereng Batang Padi Cokelat (Nilaparvata lugens Stal) di Sentra Padi Kecamatan Kumpeh Ulu Terhadap Beberapa Jenis Bahan Aktif Insektisida Ratna, Yuni; Yunita, Wilma; Ardianti, Ardianti; Pebrianti, Herni Dwinta
Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian Vol. 7 No. 2 (2024): Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian
Publisher : Jambi University, Fakultas Pertanian, Program Studi Agroekoteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/agroecotania.v7i2.41330

Abstract

Penelitian ini bertujuan untuk mengetahui tingkat resistensi Nilaparvata lugens Stal di sentra padiKecamatan Kumpeh Ulu terhadap beberapa jenis bahan aktif insektisida. Penelitian ini dilaksanakandi Laboratorium Pestisida dan Gulma Fakultas Pertanian Universitas Jambi. Terdapat dua tahappengujian toksisitas insektisida yaitu uji pendahuluan dan uji lanjutan. Metode pengujian yangdigunakan adalah metode celup pakan. Uji pendahuluan dilakukan pada N. lugens populasi lapang.Konsentrasi insektisida yang digunakan dalam uji pendahuluan adalah formulasi dari masing-masinginsektisida. Konsentrasi formulasi insektisida yang digunakan adalah 0,5-1 ml/l (monosultap), 4-8ml/l (BPMC), 0,75-1,5 ml/l (permetrin dan abamektin), dan 1-2 ml/l (fipronil). Tujuh konsentrasiuji pendahuluan untuk insektisida monosultap yakni berkisar antara 0,2-0,6 ml/l, BPMC 2,1-3,6 ml/l,permetrin dan abamektin 0,2-0,5 ml/l dan fipronil 0,15-0,45 ml/l. Setiap perlakuan konsentrasi yangdiuji diulang sebanyak tiga kali. Setelah melakukan uji pendahuluan kemudian di dapatkankonsentrasi untuk uji lanjutan. Sembilan taraf konsentrasi insektisida monosultap, BPMC, permetrindan abamektin, dan fipronil yang digunakan pada N. lugens populasi lapang di sentra padi KecamatanKumpeh Ulu. Metode perlakuan pada uji lanjutan dilakukan seperti uji pendahuluan, namun setiapperlakuan yang diuji diulang sebanyak lima kali. Data mortalitas N. lugens pada uji pendahuluan danuji lanjutan untuk setiap jenis insektisida dianalisis dengan program PoloPlus (LeOra SoftwareCompany). Berdasarkan hasil penelitian, N. lugens populasi sentra padi Kecamatan Kumpeh Uluterindikasi resisten terhadap monosultap (NR= 3,95), BPMC (NR= 2,01), permetrin dan abamektin(NR= 1,77) dan fipronil (NR= 2,61).
Co-Authors Alan Firmansyah Anjani, Syifa Darma Ardianti, Ardianti Bayu Pambudi Dea Diyan Putri Didik Indradewa Dilla Wahyuni Elly Indra Swari Elly Indra Swari Herni Dwinta Pebrianti Herni Dwinta Pebrianti, Herni Dwinta Kasumbogo Untung Nadia Akmala Zamila NELIYATI, Neliyati Nerty Soverda Rahayu Hermita Sinaga Syarifah Tuti Alawiyah Weni Wilia Wilma Yunita Wilma Yunita Wilma Yunita Wilma Yunita Wilyus Wilyus Witjaksono Witjaksono Y. Andi Trisyono