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Journal : Viabel : Jurnal Ilmiah Ilmu-Ilmu Pertanian

The IN VIVO UTILIZATION OF ANTAGONISTIC INTERACTION ABILITIES OF BIOLOGICAL AGENTS AGAINST PATHOGENIC FUNGUS OF Fusarium spp. FOR CONTROL OF STEM ROT DISEASE IN THE FIG CUTTINGS (Ficus carica L) AND ITS EFFECT ON PLANT GROWTH: Tin, Trichoderma pramono hadi hadi; Moh Masnur; Srie Juli Rachmawatie
Viabel : Jurnal Ilmiah Ilmu-Ilmu Pertanian Vol 15 No 1 (2021): Mei 2021
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/viabel.v15i1.1391

Abstract

ABSTRACT This study aims to determine the effectiveness of the inoculation of antagonistic biological agents in controlling stem rot disease caused by the pathogenic fungus Fusarium spp., and to increase the growth of fig stem cuttings (Ficus carica L.). This research was conducted at the Greenhouse of the Faculty of Agriculture, Islamic University of Batik Surakarta (UIBS), from September 2020 to December 2020. This study used a completely randomized design (CRD)., with 6 types of treatment, consisting of control, Trichoderma, Gliocladium, Corynebacterium, PGPR, and synthetic fungicide Mancozeb as a comparison, with 3 repetitions and 3 sub-repetitions. Observations consisted of several parameters, namely: disease incubation period, disease incidence, disease severity, shoot growth period, shoot height, leaf number, leaf area, root length, and number of roots. The results showed that Trichoderma treatment gave the best results for all observed parameters, even better than Mancozeb which is usually used by farmers. This is because Trichoderma has the ability of antagonistic in the form of very aggressive competition, producing antibiotic, and mycoparasitic mechanism against the pathogenic fungus Fusarium spp., so its utilization can be applied in organic farming to control stem rot disease which is more environmentally friendly. Trichoderma can also be used as biofertilizer because it has the ability as a good biodecomposer, its can breakdown nitrogen nutrients, dissolve phosphate, and provide micro nutrients, and even release the hormones auxin, cytokinins and ethylene, so that its effectiveness can stimulate and increase vegetative growth of fig plants in the form of shoots, leaves and roots. Keywords: fig, Fusarium spp., biological agent, Trichoderma, Mancozeb
The Uji Efikasi Biofungisida Bahan Aktif Streptomyces sp dan Geobacillus sp. Terhadap Intensitas Penyakit Bercak Ungu Pada Bawang Merah (Allium ascalonicum L): shallot , biofungicide, Streptomyces, Geobacillus , Alternaria porri. Pramono Hadi; Toni Toni; Srie Juli Rachmawatie; Shalahudin Mukti P
Viabel : Jurnal Ilmiah Ilmu-Ilmu Pertanian Vol 16 No 2 (2022): November 2022
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/viabel.v16i2.2138

Abstract

ABSTRACT Shallots (Allium ascalonicum L.) is a leading vegetable commodity in Indonesia which is cultivated in an incentive by farmers. The development of shallot farming in Indonesia is directed at increasing yields, quality of production and income as well as improving the standard of living of farmers. Loss of shallot production can not be separated from the effect of increasing or decreasing the attack of plant pests and diseases. This study aims to determine the concentration of the biofungicide active ingredient Streptomyces sp 1 x 106 cfu/gram and Geobacillus sp 1 x 106 cfu/gram The most effective for controlling purple spot disease on shallots . This research was carried out from November 2021 to January 2022 in Wonodoyo Village, Cepogo District, Boyolali Regency at an altitude of 1,300 masl with brown lithosol soil type. The method used in this study was a non-factorial Completely Randomized Block Design (CRBD) with 5 (five) different biofungicide concentrations. The concentration treatment used is 1.5 gr / liter ( E1 ), 1,25 gr / liter ( E2 ), 1,0 gr / liter ( E3 ), 0,75 gr / liter ( E4 ), and farmer treatment ( E0 ). The results showed that the concentration treatment of the biofungicide active ingredient Streptomyces sp 1 x 106 cfu/gram and Geobacillus sp 1 x 106 cfu/gram gives a very real influence on the parameters of attack intensity Alternaria porri , weight of wet stover, weight of dry stover, weight of dry tuber, and number of leaves . However, it had no significant effect on plant height parameters. The level of effectiveness of the biofungicide active ingredient Streptomyces sp 1 x 106 cfu/gram and Geobacillus sp 1 x 106 cfu/gram on attack intensity parameter The best Alternaria porri was treated with a concentration of 1,50 gr /liter ( E1 ), with an efficacy level of 76.19 %. Keywords: shallot , biofungicide, Streptomyces, Geobacillus , Alternaria porri.