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Loekas Soesanto
Fakultas Pertanian, Universitas Jenderal Soedirman
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Social Sciences

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APLIKASI JAMUR PATOGEN GULMA PADA TANAMAN BUDIDAYA Kartika Fitri Rina Dewi; Loekas Soesanto; Endang Mugiastuti; Abdul Manan
AGRIBIOS Vol 20 No 1 (2022): JUNI
Publisher : Program Studi Agribisnis Fakultas Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36841/agribios.v20i1.1463

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh jenis jamur patogen gulma terhadap pertumbuhan tanaman budidaya. Penelitian dilaksanakan di Laboratorium Perlindungan Tanaman dan Experimental Farm, Fakultas Pertanian, Universitas Jenderal Soedirman, Purwokerto selama empat bulan. Rancangan yang digunakan adalah rancangan petak terbagi (split-plot) dengan tiga ulangan. Petak utama terdiri atas Fusarium oxysporum, Curvularia sp., dan Chaetomium sp., sedangkan anak petak terdiri atas enam jenis tanaman budidaya yaitu jagung, padi, sorgum, kacang tanah, tomat, dan bayam cabut. Variabel yang diamati adalah gejala dan tanda penyakit, masa inkubasi, intensitas penyakit, laju infeksi, kejadian penyakit, Area Uunder the Disease Progress Curve (AUDPC), jumlah daun, tinggi tanaman, bobot segar tanaman dan bobot kering tanaman. Hasil penelitian menunjukkan bahwa semua jamur patogen gulma tidak menimbulkan penyakit pada tanaman budidaya saat diaplikasikan dengan dosis 12,5-25 mL/polybag dengan aplikasi sebanyak 5-8 kali. Berdasarkan hasil penelitian tersebut dapat diketahui jamur patogen gulma teruji keamanan hayati terhadap tanaman budidaya karena tidak berbahaya dan tidak menimbulkan kerusakan.
Potensi ekstrak kasar metabolit sekunder yang dihasilkan Trichoderma asperellum dan Pseudomonas fluorescens untuk pengendalian antraknosa pada buah kakao Christina Oktora Matondang; Muklasin; Loekas Soesanto
Menara Perkebunan Vol. 91 No. 1 (2023): 91 (1), 2023
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v91i1.524

Abstract

Cocoa pod anthracnose is an important disease of cocoa and can reduce yields. Many attempts have been made to control anthracnose rot disease on cocoa pods but have not been successful yet. This study aimed to examine the potency of secondary metabolite crude extracts produced by Trichoderma asperellum and Pseudomonas fluorescens solely or in combination in controlling anthracnose rot disease of cocoa pods in the field at Silo Bonto Village, Asahan Regency, North Sumatera Province. The secondary metabolite crude extracts was prepared by the form of conidia or T. asperellum and P. fluorescens cells. A randomized block design was used to assessed four treatments i.e. T. asperellum + P. fluorescens, T. asperellum, P. fluorescens secondary metabolite crude extracts and control, which was repeated six times. The observation parameters were the percentage of healthy and diseased pods (anthracnose fruit rot). The results showed that the secondary metabolite crude extracts of T. asperellum, P. fluorescens, and T. asperellum + P. fluorescens reduced the number of diseased fruits by 94.71, 89.09, and 92.09% compared to the control respectively. The increasing of  healthy fruits number in the application of secondary metabolite crude extracts of T. asperellum, P. fluorescens, and T. asperellum + P. fluorescens was 52.68, 54.20, and 54.18%, respectively.
Co-Authors Abdul Manan Christina Oktora Matondang Endang Mugiastuti Kartika Fitri Rina Dewi Muklasin