Please use this identifier to cite or link to this item: http://repository.ipb.ac.id/handle/123456789/72450
Title: Pengujian viabilitas dan efektivitas formula a8 talek dalam kemasan terhadap tanaman padi yang terserang penyakit blas
Other Titles: Viability and effectivity test of formula talc a8 in packaging on infected rice plants by blast disease
Authors: Mubarik, Nisa Rachmania
Suryadi, Yadi
Fadiyah, Farizul
Issue Date: 2014
Publisher: Bogor Agricultural University
Abstract: Formula A8 yang terdiri atas bakteri Bacillus firmus E65, Bacillus cereus II.14, Pseudomonas aeruginosa C32b, dan Seratia marcescens E31 telah teruji memiliki potensi dalam menghambat pertumbuhan cendawan Pyricularia oryzae secara in vivo dan in vitro. Penelitian ini bertujuan mengamati ketahanan formula A8 sebagai agens hayati potensial melalui uji viabilitas sel bakteri dengan menggunakan bahan pembawa talek, pada suhu ruang (26-27oC) dan suhu kulkas (4oC) dengan pengemasan plastik dan aluminium foil hingga masa penyimpanan 2 bulan dan menguji efektivitas pada tanaman padi yang terserang penyakit blas. Formula A8 menggunakan bahan pembawa dengan perlakuan suhu dan pengemasan dengan kode suhu kulkas aluminium foil (SKA), suhu kulkas plastik (SKP), suhu ruang aluminium foil (SRA), dan suhu ruang plastik (SRP) secara berurutan memiliki persentase uji antagonisme sebesar 68.33 %, 83.33 %, 77.77% dan 77.77%. Perlakuan yang mengalami kestabilan jumlah log sel yaitu SRP dengan penurunan jumlah log sel selama tiga bulan sebesar 0.39 %. Berdasarkan uji in vivo, terlihat adanya aktivitas penekanan formula A8 terhadap penyakit blas. Persentase penghambatan tertinggi dimiliki oleh padi yang diberi perlakuan suhu ruang dengan kemasan aluminium foil (SRA) sebesar 86.4 % pada 10 hsi dan 70.08 % pada 14 hsi.
Formula A8 consisted of Bacillus firmus E65, Bacillus cereus II.14, Pseudomonas aeruginosa C32b, and Seratia marcescens E31 was tested its effectivity to suppress blast disease on rice fields in vitro and in vivo . The objectives of this research are to know the viability and effectivity of formula A8 as biocontrol with temperature and packaging factor for effectiveness in controlling blast disease, with carrier agent of formulation was used talc, at room (26-27oC) and refrigerator (4oC) temperature. Formula A8 with temperature and packaging treatment which code refrigerator temperature with aluminium foil packaging (SKA), refrigerator temperature with plastic packaging (SKP), room temperature with aluminium foil packaging (SRA), and room temperature with plastic packaging (SRP). The result of in vitro treatment each showed precentage 68.33 %, 83.33 %, 77.77% dan 77.77%. The precentage of best viability was SRP with decrease 0,39 %. Based on in vivo test, preventive application of formula A8 to Inpari 13 rice plant suppressed the growth of blast. The highest inhibition of formula A8 against the blast was SRA reached 86.4 % at 10 day after inoculation and 70.08 % at 14 day after inoculation. Key words : Biological agents, P. oryzae, formula A8, blast disease, temperature and packaging factor.
URI: http://repository.ipb.ac.id/handle/123456789/72450
Appears in Collections:UT - Biology

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