M. Abduh Ulim
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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DAYA HAMBAT RIZOBAKTERI KANDIDAT AGENS BIOKONTROL TERHADAP PERTUMBUHAN KOLONI PATOGEN PHYTOPHTHORA CAPSICI SECARA IN VITRO

Jurnal Floratek Vol 8, No 2 (2013): Oktober 2013
Publisher : Universitas Syiah Kuala

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Abstract

The utilization of biocontrol agents as an alternative to synthetic pesticides becomes widespread as the increase of awareness to negative effects of synthetic pesticides. The objectives of this research were to isolate rhizobacteria from tomato plant rhizosphere and to characterize effective rhizobacteria isolates to deter growth of Phytopthora capsici colony. The rhizobacteria was isolated from healthy tomato plant rhizosphere, and then antagonism nature to pathogen was evaluated by double culture method. Deterrent ability of the rhizobacteria was measured based on resistance zone formed due to the presence of the biocontrol agents. Among 57 isolates, 18 were potential for further evaluation. Deterrent ability test of the 18 isolates resulted in 3 isolates which were very promising to be developed as biocontrol agents to control seed borne pathogens. They were RBBM36, RBBM18 and RBBM35. 

Perlakuan biopriming kombinasi ekstrak tomat dan Trichoderma spp. terhadap viabilitas dan vigor benih terung (Solanum melongena L.) kadaluarsa

Jurnal Ilmiah Mahasiswa Pertanian Vol 3, No 2 (2018): Mei 2018
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Abstrak. Penelitian tentang pengaruh perlakuan biopriming terhadap viabilitas dan vigor benih terung kadaluarsa dilaksanakan di Laboratorium Ilmu dan Teknologi Benih dan Laboratorium Penyakit Tanaman Universitas Syiah Kuala, Banda Aceh pada bulan Agustus sampai dengan Oktober 2017. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi ekstrak buah tomat dan spesies Trichoderma spp. serta interaksi antara konsentrasi ekstrak buah tomat dan spesies Trichoderma spp. terhadap viabilitras dan vigor benih terung kadaluarsa. Penelitian ini dilakukan dengan menggunakan Rancangan Acak Kelompok (RAL) pola faktorial dengan 2 faktor dan 3 ulangan. Faktor pertama yaitu konsentrasi ekstrak buah tomat yang terdiri atas  4 taraf dan faktor kedua yaitu spesies Trichoderma spp. yang terdiri atas 3 taraf. Hasil penelitian menunjukkan bahwa konsentrasi ekstrak buah tomat terbaik dijumpai pada konsentrasi ekstrak buah tomat 10%, baik yang dikombinasikan dengan T. harzianum maupun T. asperellum. Jenis Trichoderma spp. terbaik dijumpai pada T. harzianum pada semua konsentrasi ekstrak buah tomat.Kata kunci: Biopriming, Ekstrak Buah Tomat, Trichoderma spp..Biopriming Treatment Combination of  Tomato Extract and Trichoderma spp. to Viability and Vigor of Expired Eggplant Seeds Abstract. Research on the effect of biopriming treatment on viability and vigor of expired eggplant seeds was conducted at the Laboratory of Seed Science and Technology and Plant Disease Laboratory of Syiah Kuala University, Banda Aceh from August to October 2017. This study aims to determine the effect of tomato extract concentration and species Trichoderma spp. as well as the interaction between the concentration of tomato extract and species Trichoderma spp. to viability and vigor of expired eggplant seeds. This research was conducted by using Randomized Block Design (RBD) factorial pattern with 2 factors and 3 replications. The first factor is the concentration of tomato extract consisting of 4 levels and the second factor is species  Trichoderma spp. which consists of 3 levels. The results showed that the best concentration of tomato extract was found in the concentration of 10% tomato extract, both combined with T. harzianum and T. asperellum. The best species of Trichoderma spp. found in T. harzianum in all concentrations of tomato extracts.Keywords : Biopriming, Tomato Extract, Trichoderma spp..