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All Journal Jurnal Perlindungan Tanaman Indonesia JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Kultivasi Caraka Tani: Journal of Sustainable Agriculture Jurnal SOLMA RADIKULA: Jurnal Ilmu Pertanian
Nurtiati, Nurtiati
Fakultas Pertanian Universitas Jenderal Soedirman
Agriculture, Biological Sciences & Forestry Other

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Pengelolaan Tanaman Bawang Merah Ramah Lingkungan dengan Pemanfaatan Biopestisida Trichoderma manan, Abdul manan; Nurtiati, Nurtiati; Mugiastuti, Endang
Jurnal SOLMA Vol 7 No 2 (2018)
Publisher : Uhamka Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29405/solma.v7i2.2160

Abstract

Kelompok tani “Rukun Tani I” Desa Sumbang ,  Kecamatan  Sumbang Kabupaten  Banyumas Jawa Tengah merupakan kelompok tani yang banyak mengusahakan tanaman hortikultur. Permasalahan utama yang dihadapi dalam peningkatan produksi bawang merah adalah tingginya serangan penyakit moler (Fusarium oxysporum) dan hama ulat bawang (Spodoptera exigua). Sosialisasi pengelolaan hama dan penyakit bawang  merah dengan menggunakan biopestisida Trichoderma sp. perlu dilakukan. Tujuan kegiatan adalah meningkatkan pengetahuan dan keterampilan petani tentang hama dan penyakit bawang merah serta tindakan pengelolaannya dengan pestisida hayati berbasis Trichoderma.  Permasalahan mitra diatasi dengan beberapa pemecahan teknologi, yang dilakukan dengan metode transfer teknologi melalui pendidikan, pelatihan, demplot, dan pendampingan. Kegiatan sosialisasi mampu meningkatkan pengetahuan petani tentang jenis hama dan penyakit bawang merah, pengendaliannya, dan pengendalian yang ramah lingkungan sebesar 72,98%. Sedangkan. kegiatan pelatihan perbanyakan dan aplikasi Trichoderma mampu meningkatkan kemampuan petani masing-masing sebesar 48,57 %  dan 34,09 %. Aplikasi pestisida hayati  Trichoderma sp. pada petak demplot mampu meningkatkan pertumbuhan dan hasil bawang merah sebesar 7,09 % dan menurunkan intensitas hama dan penyakit  sebesar 34,16 %.
Biological Effects of Indigenous Entomopathogenic Fungi and Their Application Methods on Spodoptera frugiperda Minarni, Endang Warih; Nurtiati, Nurtiati; Istiqomah, Dina
Jurnal Perlindungan Tanaman Indonesia Vol 26, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.70816

Abstract

Spodoptera frugiperda is a new pest in Indonesia that attacks corn and can cause up to 100 percent damageon young plants. As an invasive pest, information on potential indigenous natural enemies that cancontrol this pest is needed. This study aims to determine the effectiveness of indigenous entomopathogenic fungi and their application methods on mortality, feeding activity, growth, fecundity, and fertility of S. frugiperda. This study used a factorial Completely Randomized Block Design (RCBD) method consisting of 10 treatments. Treatmentstested werecombination of fungi species, namely Fusarium sp., Aspergillus oryzae, Entomophthora sp. with conidia density 109 ml-1, distilled water and cypermethrin at concentration of 1 ml.L-1 as a control. Two application techniques used were direct application on S. frugiperda larvae and diet test. Each treatment was repeated three times resulting in30 experimental units. Variables observed included mortality, feeding activity, growth, fecundity, and fertility of S. frugiperda. Results showed that the three fungi and cypermethrin treatment did not cause mortality, but reduced feeding activity, fecundity and fertility of S. frugiperda. Application of entomopathogenic fungi ondietswas more effective than directly spraying S. frugiperda larvae. The best treatment combination that suppressed feeding activity was the application of Aspergillus oryzae sprayed on S. frugiperda diet.It was also suspected that S. frugiperda larvae used in this test had developed resistance to cypermethrin.
Biochemical changes in some banana cultivars infected by Banana bunchy top virus Rahayuniati, Ruth Feti; Kurniawan, Ruly Eko Kusuma; Nurtiati, Nurtiati
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 24 No. 1 (2024): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLANT PE
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.12482-90

Abstract

Bunchy top is one of the major diseases on bananas that caused economic losses. This study aimed to determine changes in protein content, the concentration of phenolic compounds, the amount of chlorophyll, and sugar content in several Banana bunchy top virus (BBTV)-infected banana cultivars. The research involved the artificial inoculation, extraction, and biochemical analysis of banana seedlings from the cultivars Mas, Cavendish, Kepok, and Raja. Inoculation was performed using the vector Pentalonia sp.. A factorial complete randomized design (CRD) was used as the experimental design. Each experimental unit consisted of 5 repetitions. Protein, phenol, chlorophyll, and sugar content measurements were performed using a UV-Vis spectrophotometer. Test samples were in the form of fresh leaves from BBTV-infected and non-BBTV-infected plants. Regression analysis and tests for significance were performed to determine the biochemical changes that occurred after testing. The results showed that the average levels of phenols, chlorophyll, protein, and total sugars in BBTV-infected plants were significantly altered. The chlorophyll content decreased from 82–87% in Mas, Cavendish, and Raja cultivars. Total plant phenol in all BBTV-infected cultivars increased by 69.2 to 348.3 ppm. Specificity was evident in the change in protein concentration, which increased by 95 ppm and 84.5 ppm in the Mas and Cavendish cultivars, respectively. This contrasts with the Kepok and Raja cultivars, which decreased by 660.5 ppm and 113.6 ppm, respectively. Sugar levels increased from 3133.9 to 3298.6 ppm in all BBTV-infected breeds. According to the data, BBTV infection has been shown to cause physiological and biochemical changes in Mas, Cavendish, Kepok, and Raja.
Uji Efefktivitas Jamur Entomopatogen Isolat Kebanggan, Karanggude, dan Pabuwaran Terhadap Hama Ulat Grayak (Spodptera frugiperda J.E. Smith) pada Tanaman Jagung Nurtiati, Nurtiati; Minarni, Endang Warih; Shafira Yunita, Khansa
RADIKULA: Jurnal Ilmu Pertanian Vol 2 No 1 (2023): RADIKULA - Juni 2023
Publisher : Fakultas Sains dan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/radikula.v2i01.2892

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh jamur entomopatogen isolat Kebanggan, Karanggude, dan Pabuwaran terhadap mortalitas larva Spodoptera frugiperda dan uji efikasi ketiga isolat jamur entomopatogen. Penelitian dilaksanakan di Laboratorium Perlindungan Tanaman Fakultas Pertanian Universitas Jenderal Soedirman, Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) non faktorial. Perlakuan yang diberikan, E0: dengan air steril, E1: dengan isolat Kebanggan, E2: isolat Karanggude, E3: isolat Pabuwaran, E4: insektisida sintetis (b.a emamektin benzoate+lufenuron) yang dikombinasikan dengan metode aplikasi K1: semprot dan K2: celup. Setiap perlakuan diulang tiga kali. Variabel pengamatan ialah, mortalitas larva dan efektivitas jamur entomopatogen, Hasil penelitian menunjukkan: Jamur entomopatogen isolat Kebanggan menyebabkan mortalitas 7% 4 HSP (Hari setelah perlakuan), Karanggude 3% 4 HSP metode penyemprotan, dan isolat Pabuwaran tidak menyebabkan mortalitas pada larva S. frugiperda. Nilai efikasi ketiga jamur entomopatogen, antara lain, isolat Kebanggan 7%, Karanggude 3%, Pabuwaran 0% metode aplikasi semprot, dan isolat Kebanggan 7%, Karanggude 7%, Pabuwaran 0% aplikasi celup.
Phenotypic evaluation of F10 soybean generations from Grobogan x Slamet cross for large seed size selection Hidayat, Ponendi; Nurtiati, Nurtiati; Ulinnuha, Zulfa; Adellansyah, Adellansyah
Kultivasi Vol 24, No 2 (2025): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v24i2.62772

Abstract

Soybeans are an important crop with high nutritional value and diverse uses. Current consumer and industry preference is for soybean varieties with large seeds and high productivity. To meet these demands, one effective approach is through hybridization. This study aims to evaluate the phenotype of F10 soybean line from a cross between Grobogan and Slamet for large-seeded and high-yield. The study was conducted in the screenhouse and Plant Breeding and Biotechnology Laboratory, Faculty of Agriculture, Jenderal Soedirman University. The experiment used a Randomized Complete Block Design (RCBD) with three replications, testing genotypes from Slamet x Grobogan crosses and three check varieties: Slamet, Grobogan, and Wilis. Observational data were analyzed using analysis of variance (ANOVA) with a 5% error rate and continued with LSD to select lines with high-performing genotype. The results of the ANOVA showed that the tested lines affected growth parameters and plant yield components. LSD analysis showed that the highest leaf length and number of leaves were in GS 7. In seed weight per plant, all lines were below Grobogan, followed by GS 7 and GS 47. In 100 seed weight, all lines were below Grobogan, but there were lines with large seed categories (> 14 g/100 seeds), namely GS7, GS 12, GS 36, and GS 39. Correlation analysis showed that the number of pods and 100 seed weight were positively correlated with seed weight per plant. Therefore, these traits can be selection indicators to identify high-yielding soybean genotype.
The Influence of Soil Nutrients Availability on Banana Bunchy Top Disease Incidence in Banyumas Regency, Central Java Province, Indonesia Kurniawan, Ruly Eko Kusuma; Rahayuniati, Ruth Feti; Nurtiati, Nurtiati
Caraka Tani: Journal of Sustainable Agriculture Vol 38, No 1 (2023): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v38i1.67120

Abstract

The banana bunchy top is one of the important diseases on bananas, presumably coupled with the influence of soil properties, despite no fixed information regarding their relationship. Therefore, this study aims to map the soil nutrient contents at some banana plantation center and determine the effect of nutrient availability on the incidence of banana bunchy top disease (BBTD). This study set a purposive sampling according to the banana cultivation distribution to gain soil samples and data on BBTD incidence. Soil samples were analyzed for macronutrient content, including N capacity using the Kjeldahl method, Bray method for P analysis, and CH4OAc methods for K analysis. According to the investigation, the range of total N was 0.2% to 0.75%, showing BBTD incidence from 5.8% to 9.47%, respectively. In line with the total P, BBTD incidence increased from 8.03% to 9.62% in the P content of 15 to 35 ppm. In contrast, in the total K of 0.5 to 1 cmol(+) kg-1, the BBTD incidence tended to decline from 9.68% to 9%. It was concluded that BBTD incidence would increase with the higher levels of N and P but decrease with the higher K. In Banyumas Regency, BBTD incidence increased in the altitude range of 100 to 300 m above sea level, then decreased at a higher altitude. BBTD incidence also exhibited an unstable response to pH changes. Bunchy top disease incidence was the highest between pH 5 and 8. This could be a guide to soil management to reduce BBTD incidences.
Co-Authors Adellansyah, Adellansyah Endang Mugiastuti Endang Warih Minarni Istiqomah, Dina Kurniawan, Ruly Eko Kusuma manan, Abdul manan Ponendi Hidayat Ruth Feti Rahayuniati Shafira Yunita, Khansa Ulinnuha, Zulfa