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All Journal Jurnal Agrotech JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION)
Dedi Darmadi
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Agriculture, Biological Sciences & Forestry Environmental Science

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Resistance of Some Rice Varieties (Oryzae sativa Linnaeus) to the Brown Planthopper (Nilaparvata lugens Stal) using the Honey Dew Test Widya Puspita Sari; James Rinaldi; Dedi Darmadi; Arneti Arneti
Jurnal Proteksi Tanaman Vol 6 No 2 (2022): December 2022
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.2.23-32.2022

Abstract

One of the control techniques for the brown planthopper or BPH (Nilaparvata lugens Stal) is resistant varieties. This study aimed to determine the resistance level of several rice varieties (Oryza sativa Linnaeus) to the BPH of the Karawang Population. The study was located at the Entomology Laboratory, Center for Predicting Plant Pest Organisms (BBPOPT) Jatisari, Directorate General of Food Crops, Ministry of Agriculture, Indonesia, from July to August 2022. The study was conducted in a Completely Randomized Design (CRD) with ten treatments and five replications. The treatment was in the form of different rice varieties (Pelita, Inpari-33, Inpari-47, Inpari-48, Ciherang, Cilamaya Muncul, Mapan, Situ Bagendit, M-400, IR-64). Parameters observed were spot area, spot area conversion, and determination of resistance. The results showed that the resistance of some of the tested rice varieties to BPH of the Karawang population was classified as moderate to moderately resistant. Inpari-47, Inpari-48, IR-64, M-400, Inpari-33, Cilamaya Muncul, and Situ Bagendit are moderately resistant, while Mapan, Ciherang, and Pelita have moderate resistance. The results of the honeydew test can be compared with other resistance test methods.
Resistance Test of Some Rice Varieties to Brown Planthopper (Nilaparvata lugens Stal) Bogor Population Using Honey James Rinaldi; Widya Puspita Sari; Dedi Darmadi; Novri Nelly
Jurnal Proteksi Tanaman Vol 6 No 2 (2022): December 2022
Publisher : Plant Protection Departement, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.2.45-54.2022

Abstract

Brown planthopper or BPH (Nilaparvata lugens Stal, Hemiptera: Delpachidae) is a significant pest that is a severe problem to rice plants in various places, including Bogor District, East Java Province. Resistance of several varieties of rice to BPH of Bogor Population has not been reported. One method to determine a variety's resistance is the honeydew test. This study aims to determine the resistance of several rice varieties to BPH of Bogor population. This study used six different varieties as treatments, and carried out in five replications. Those varieties were Pelita, Mapan, Situ Bagendit, Ciherang, Inpari-33, and IR-64. The observations were made on the area of honeydew spots produced by BPH after consuming sap of rice plant. This research showed that the Situ Bagendit variety was relatively resistant to BPH of Bogor population. The Mapan and Pelita varieties were quite susceptable, while Inpari-33, Ciherang, and IR-64 were moderate. The region of origin where BPH grows and the testing procedure can affect the resistance category of one variety.
EFEKTIVITAS EKSTRAK UMBI GADUNG (Dioscorea hispida Dennst) DAN Beauveria bassiana TERHADAP MORTALITAS LARVA Spodoptera frugiperda J. E. Smith Nur Fadhilah; Lutfi Afifah; Tatang Surjana; Dedi Darmadi
Jurnal Agrotech Vol 14 No 2 (2024)
Publisher : FAKULTAS PERTANIAN UNIVERSITAS ALKHAIRAAT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31970/agrotech.v14i2.164

Abstract

Spodoptera frugiperda merupakan hama penting tanaman jagung dengan karakter invansif yang menyebabkan kehilangan hasil produksi jagung. Tujuan penelitian ini adalah mendapatkan konsentrasi ekstrak umbi gadung dan kerapatan konidia Beauveria bassiana terbaik terhadap mortalitas S. frugiperda. Metode penelitian dilakukan secara eksperimen dengan Rancangan Acak Lengkap (RAL) faktor tunggal yang terdiri dari 8 perlakuan dengan 4 kali ulangan : K1(Kontrol Deltametrin 1 ml/l); G1(Ekstrak Umbi Gadung 40 g/l); G2(Ekstrak Umbi Gadung 80 g/l); G3(Ekstrak Umbi Gadung 120 g/l); B1(B. bassiana 107 konidia/ml); B2(B. bassiana 108 konidia/ml); B3(B. bassiana 109 konidia/ml); K2(Kontrol Aquadest). Pengaruh perlakuan dianalisis dengan sidik ragam (ANOVA), dan apabila uji F taraf 5% menunjukkan hasil signifikan, maka untuk mengetahui perlakuan yang paling baik dilanjutkan dengan uji lanjut DMRT (Duncan Multiple Range Test) pada taraf nyata 5%. Hasil penelitian menunjukkan konsentrasi ekstrak umbi gadung 120 g/l mampu mematikan 100% larva uji dan B. bassiana 109 mampu mematikan larva uji sebesar 97,22%. Ekstrak umbi gadung 120 g/l mematikan 50% larva tercepat 6,4 hari berdasarkan analisis probit LT50. Penggunaan ekstrak umbi gadung 40 g/l dan B. bassiana 107 konidia/ml dapat direkomendasikan sebagai alternatif pengendalian S. frugiperda yang aman dan ramah lingkungan.
Co-Authors Arneti Arneti James Rinaldi Lutfi Afifah Munadi Munadi NOVRI NELLY Nur Fadhilah Tatang Surjana