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Jurnal Fitopatologi Indonesia

jfiti
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Published by Institut Pertanian Bogor

ISSN : 02157950 EISSN : 23392479 DOI : -

Core Subject : Health,

Medicine & Pharmacology

Jurnal Fitopatologi Indonesia (JFI) is an official publication owned by the Indonesian Phytopathology Society (Perhimpunan Fitopatologi Indonesia). In 2010, JFI management was given to PFI Komda Bogor. Since then, JFI has been published 6 times (January, March, May, July, September, and November).

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Articles 5 Documents

Search results for , issue "Vol 12 No 3 (2016)" : 5 Documents clear

Bakteri Endofit Asal Berbagai Akar Tanaman sebagai Agens Pengendali Nematoda Puru Akar Meloidogyne incognita pada Tomat Pradana Pandu Ankardiansyah; Abdul Munif; Supramana Supramana
Jurnal Fitopatologi Indonesia Vol 12 No 3 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Infection caused by root knot nematode (RKN) Meloidogyne incognita may cause yield losses. Little is known regarding the effectiveness of endophytic bacterial group as biocontrol agents of RKN. This research was aimed to obtain endophytic bacteria group from 16 species of plants, which effectively controlled the RKN. Isolation of endophytic bacteria group was conducted using NA 20%, NA 50%, TSA 20%, TSA 50%, and King’s B medium. All of the bacteria groups giving negative result in hypersensitive and haemolytic tests, was further examined for their ability to produce protease, chitinase, and cyanide acid. The same endophytic bacteria groups were also tested for their potential to control juvenile 2 of M. incognita on tomatoes by seed treatment and soil drenching. Agronomical and pathological traits were observed 40 days after nematodes infestation. Eighty endophytic bacteria groups were successfully isolated and 17 of them were considered potential. Physiological test showed that 16 groups of endophytic bacteria can produce protease enzyme, 12 groups can produce chitinase enzyme, and 5 groups can produce cyanide acid. Specific endophytic bacteria group, i.e. TmtN5 from roots of tomato plant, is the most effective isolate for suppressing root damage and population of RKN. This group was effective as biocontrol agents of RKN because it produceds chitinase, protease, and cyanide acid. This research provided a new information regarding the potential use of endophytic bacteria group as a biocontrol agent of RKN.

Status Fitonematoda pada Tiga Kisaran Umur Lahan Pertanaman Pisang Cavendish di Way Kambas, Lampung Yanto Yanto; I Gede Swibawa
Jurnal Fitopatologi Indonesia Vol 12 No 3 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Crop losses due to phytonematodes infection commonly occurred on intensive plantation practiced for a long time. The research was aimed to study phytonematodes status on several age-different plantation of Cavendish banana in PT NTF Way Kambas, Lampung. Soil and root samples were taken from three different plantations, selected based on time period of cultivation practice, i.e. 3–5, 10–12, and 17–19 years long. The modification of Baermann funnel method was applied to collect nematodes. The status of phytonematodes were determined based on the absolute frequency (AF), relative frequency (RF), and absolute population (AP) of each genus. The results showed that 13 phytonematodes genera inhabited Cavendish banana crops. Pratylenchus and Radopholus have important status on a land that had been cultivated for 3–5 and 10–12 years with AF 100%, RF 31%, and AP 298.8, and 423.0 individues per 200 mL of soil, respectively on 3–5 years long lands, and AF100%, RF 39% and PA 215, and 126 individues per 200 mL of soil, respectively on 10–12 years long lands. Pratylenchus and Radopholus were less important on 17–19 years long rotated lands with AF 77%, RF 22% and AP 33.0 and 16.4 individues per 200 mL of soil respectively. The status of other phytonematodes were not important with low value of AF, RF, and AP.

Ketahanan Berbagai Kultivar Padi Lokal terhadap Penyakit Hawar Daun Bakteri Andi Khaeruni; Erwin Najamuddin; Teguh Wijayanto; Syair Syair
Jurnal Fitopatologi Indonesia Vol 12 No 3 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Bacterial leaf blight disease caused by Xanthomonas oryzae pv. oryzae is an important rice disease in Indonesia, including in South East Sulawesi. The use of resistant varieties is one of the effective and environmentally friendly control strategies to suppress the disease. This study aimed to determine the level of resistance of some local rice varieties of South and Southeast Sulawesi against Xanthomonas oryzae pv. oryzae pathotypes IV, VIII and X. The study was conducted in a screen house involving 3 bacterial pathotypes and 11 local rice cultivars. Shearing method was used for inoculation of bacteria to leaf on vegetative and generative phases. Disease incidences were measured 3 weeks after inoculation, and the data was further used to determine the level of resistance of the tested rice cultivars. The results showed that incubation period of the disease was longer on Kelaca cultivar compared to other cultivars. On vegetative phase, this cultivar showed moderate resistant to pathotypes IV and X, and highly resistant to patotype VIII, whereas on the generative phase it showed moderate resistant to pathotypes IV and VII, and highly resistant to pathotype X. Therefore, Kelaca cultivar can be recommended for endemic areas of leaf blight in South and Southeast Sulawesi

Penapisan Cendawan Trichoderma spp. untuk Pengendalian Phytophthora infestans secara in vitro Susiana Purwantisari; Achmadi Priyatmojo; Retno Peni Sancayaningsih; Rina Sri Kasiamdari
Jurnal Fitopatologi Indonesia Vol 12 No 3 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Late blight disease on potato caused by a plant pathogenic fungus (Phytophthora infestans) is the most important disease in Indonesia. The use of antagonist fungi Trichoderma is an environmentally friendly technology to control the potato disease. The purpose of this study was to determine the ability of Trichoderma spp. to control P. infestans in vitro. Trichoderma spp. have been isolated from suppressive soil at central potato areas in district of Lembang, Bandung, West Java Province. To determine the inhibition ability of Trichoderma spp against P. infestans, a dual culture method was performed. Variable observed was inhibition zone of Trichoderma spp. against P. infestans. The results showed that 9 isolates of Trichoderma were successfuly isolated from suppressive soil, i.e. T. viride (2 isolates), T. atroviride (1 isolate), T. harzianum (1 isolate) and T. aureoviride (5 isolates). All the Trichoderma isolates revealed growth inhibition abality against P. infestans and. The highest growth inhibition (68.6%) was observed by T. viride isolate ( Ti 9).

Penekanan Penyakit Blas Leher Malai Padi Menggunakan Ekstrak Kompos Jerami Padi Suwandi Suwandi; Harman Hamidson; Ahmad Muslim
Jurnal Fitopatologi Indonesia Vol 12 No 3 (2016)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Blast is the most important disease of rice and may cause significant losses in the reclaimed tidal swamp of South Sumatra. Water extracts of fermented composts prepared from straws of the vigorous rice plant were tested in pot experiment for their ability to control blast. Rice variety Ciherang was grown on mixture of field soil and 1% diseased rice straw (v/v) collected from a tidal swamp rice field. Incidence of panicle blast was reduced by 71−87% in response to application of compost extract. The compost extract did not affect seed germination and plant height, instead, it increased the yield. The rice straw from healthy and vigorous plants is potential as a source for blast disease control.

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