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All Journal Jurnal Agroteknos
Andi Khaeruni
Jurusan Agroteknologi Fakultas Pertanian Universitas Haluoleo, Kendari
Agriculture, Biological Sciences & Forestry

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PENGGUNAAN Bacillus spp. SEBAGAI AGENS BIOKONTROL UNTUK MENGENDALIKAN PENYAKIT LAYU FUSARIUM PADA TANAMAN CABAI Andi Khaeruni; HS Gusnawaty
Jurnal Agroteknos Vol 2, No 3 (2012)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v2i3.2280

Abstract

The use of Bacillus spp. Bacteria as biocontrol agents is one alternative disease control for Fusarium wilt Fusarium oxysporum f.sp. Lycopersici on chilli plant . this study aimed to determine the effectiveness of Bacillus spp. As a biocontrol agent in various ways of application to control Fusarium wilt disease in pepper in in-vivo. Experiments were prepared  using  two  factor  factorial  in  a  completely randomized design  (CRD).  Factor  1 (Applications) consisted of levels, namely: application of biocontrol agent Bacillus spp. M11 isolates (B1), application of biocontrol agents Bacillus spp. isolates F133 (B2), and application biocontrol agent Bacillus spp. mix. M11 isolates and isolates F133 (B3). The second factor (time of inoculation/application) consisted 3 levels, namely: inoculating the seed (S1), inoculation of Bacillus spp. simultaneously with pathogen inoculation (S2), inoculation of Bacillus spp.  one week after pathogen inoculation (S3), to see the effect of the two isolates of Bacillus spp. that the latent period, the biocontrol agents Bacillus spp. mix isolates M11 and F133, was the best treatment with the longest latency period of the disease (16 hsi), the best plant growth by plant height reached 57,39 cm, and the lowest disease incidence and severity were 12,96 % and 11,11 %, respectively interaction between agent Bacillus spp. mix. Isolates M11 and F133 at the time of application on seed significantly affected the incidence of disease and plat height. Keyword: biocontrol agents, Bacillus spp., and Fusarium oxysporum f.sp. Lycopersici
PENGGUNAAN PUPUK KANDANG TERHADAP EFEKTIFITAS Trichoderma viride UNTUK MENGENDALIKAN PENYAKIT LAYU FUSARIUM PADA TANAMAN TOMAT Asniah Asniah; Andi Khaeruni; Hasniar Anwar
Jurnal Agroteknos Vol 2, No 1 (2012)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v2i1.2258

Abstract

Fusarium oxysporum is one of the important pathogens that causes disease in many crops, especially horticulture crops, one of which causes Fusarium wilt disease in tomato plants . The purpose of this study was to evaluate the use of manure on the effectiveness of Trichoderma viride to control fusarium wilt disease on tomato plants. Manure used was cow and chicken manure, applied before and after planting. The research design was completely randomized design (CRD) with 9 (nine) treatment and 3 replicates. The treatments were without the application of manure and T. viride (A) , without manure but with T . viride before planting (B), without manure but  with T. viride applied after planting (C), chicken manure without T. viride (D), chicken manure and T. viride application before planting (E), chicken manure and T. viride application after planting (F), cow manure without T. viride (G), cow manure and T. viride application before planting (H), cow manure and application of T. viride after planting (I). The results showed that chicken manure and T. viride application before planting were effective in reducing the incidence and severity of Fusarium wilt disease on tomato plants. The incidence and severity of disease was at 20 % and 26.67 % , respectively. Keyword: manure, tomato plants, Trichoderma viride 
PENGELOMPOKAN PATOTIPE Xanthomonas oryzae pv. oryzae ASAL SULAWESI TENGGARA MENGGUNAKAN PADI GALUR ISOGENIK IRRI H Syair; Samirin Samirin; Teguh Wijayanto; Andi Khaeruni
Jurnal Agroteknos Vol 2, No 1 (2012)
Publisher : Fakultas Pertanian Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56189/ja.v2i1.2260

Abstract

This Research aimed at grouping of Xanthomonas oryzae pv. oryzae pathotypes in rice cropping center of Southeast Sulawesi using isogenic lines of IRRI, as well as to know the Xanthomonas oryzae pv. oryzae pathotypes dominating and spreading in rice cropping center of Southeast Sulawesi. The pathotype grouping was determined by leaf innoculated cutting method using 30 isolates of Xanthomonas oryzae pv. oryzae from Southeast Sulawesi in 10 isogenic lines, namely IRBB1, IRBB2, IRBB3, IRBB4, IRBB5, IRBB7, IRBB10, IRBB11, IRBB13, and IRBB21. Each isolate was inoculated on the 10 isogenic lines and repeated twice. Observation  of disease intensity was conducted randomly on five leaves at four weeks after inoculation. The disease intensity was measured by the ratio of the length (cm) of leaf blight symptom to total the length of leaf sample (cm). The research results indicated there were seven pathotypes of Xanthomonas oryzae pv. oryzae in Southeast Sulawesi, i.e : pathotype X, XI, XII and four new pathotypes. Pathotype XII was the dominant pathotype, abort 79.31% of the total isolates and spreading in three regencies, Kolaka, Konawe, and South Konawe. Keywords: bacterial leaf blight, Xanthomonas oryzae pv. oryzae, pathotype
Co-Authors Asniah Asniah GUSNAWATY HS, GUSNAWATY H Syair Hasniar Anwar Samirin Samirin Teguh Wijayanto