cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Y. Andi Trisyono
Contact Email
anditrisyono@ugm.ac.id
Phone
+62274-523926
Journal Mail Official
jpti.faperta@ugm.ac.id
Editorial Address
Jalan Flora No. 1, Bulaksumur, Sleman, Yogyakarta, 55281
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Jurnal Perlindungan Tanaman Indonesia
Published by Universitas Gadjah Mada
ISSN : 14101637     EISSN : 25484788     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 509 Documents
 19   20   21   22   23 
Keragaman Genetika Xanthomonas axonopodis pv. glycines Asal Kedelai Varietas Edamame di Indonesia Andi Khaeruni; Antonius Suwanto; Budi Tjahjono; Meity S. Sinaga
Jurnal Perlindungan Tanaman Indonesia Vol 13, No 1 (2007)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11814

Abstract

Xanthomonas axonopodis pv. glycines cause bacterial pustule disease caused a serious disease in Edamame cultivation in Indonesia. We collected a total of 29 X. axonopodis pv. glycines isolates from Edamame fields at Jember, Ciawi, Cipanas and Bogor. The genetic diversity analysis of all isolates employing ARDRA and ISR technique showed six and seven different DNA profile, respectively. Therefore there are at least seven strains of X. axonopodis pv. glycines infected Edamame in Indonesia. Both CPI from Cipanas and JA4 from Sukorejo Jember isolates possess unique DNA profle and genetically are not closely related to other isolates.
Pengendalian Hayati Penyakit Layu Bakteri Tembakau: 1. Isolasi Bakteri Antagonis Triwidodo Arwiyanto
Jurnal Perlindungan Tanaman Indonesia Vol 3, No 1 (1997)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12910

Abstract

Three hundred strains of fluorescent pseudomonad and 120 strains of Bacillus spp. were isolated from the rhizosphere of Mimosa invisa L. Fluorescent pseudomonad was isolated on King s B while Bacillus spp. were isolated on Tryptic Soy Agar medium. Each media were supplemented with 100 ppm cycloheximide to suppress fungal growth. All isolated strains were tested for their capability to suppress the growth of Pseudomonas solanacearum on appropiate media. Most of fluorescent pseudomonad inhibited the growth of the pathogen with an inhibition zone from 1 mm to 16 mm. The mechanism of growth-inhibition was bacteriostatic and some of them were bactericidal. Sixty six out of 120 strains of Bacillus spp. produced defined inhibition zones on the media. The zone of growth-inhibition varied from 2 to 14 mm and the mechanism of inhibition was bactericidal. Several strains of those two bacterial marga exhibited non-antagonistic activity toward each other.
Potency of Intraguild Predation to Disrupt the Optimum Functions of Predatory Arthropods: An Ecological Perspective Nugroho Susetya Putra
Jurnal Perlindungan Tanaman Indonesia Vol 12, No 2 (2006)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12075

Abstract

Some empirical studies have revealed the ecological consequence of interspecific relationships among predatory arthropods that is the disruption of natural functions of indigenous species of predators on their preys, i.e. phytophagous arthropods. In relation to many efforts on the utilization of introduced species of natural enemies, particularly predatory arthropods, the effects oflntraguild Predation (IGP) on key predators should be considered carefully to optimize their potency. In addition, understanding the impact of biological traits of each species of predatory arthropods on their ability to adapt from being predated by other species might be important to predict their composition and possibilities for being exist in ecosystem.
Deteksi Pengimbasan Ketahanan Pisang terhadap Penyakit Layu Fusarium dengan Asam Fusarat Christanti Sumardiyono; Suharyanto Suharyanto; Suryanti Suryanti; Putri Rositasari; Yufita Dwi Chinta
Jurnal Perlindungan Tanaman Indonesia Vol 19, No 1 (2015)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.16345

Abstract

Fusarium wilt caused by Fusarium oxysporum f. sp. cubense (Foc) is the most destructive disease of banana. Until today this disease has not been successfully controlled. Fusaric acid is a toxin produced by Foc. Tyloses produced in xylem that caused wilting and yellowing of banana plants, inhibit soil nutrition and water stream. The study carried out previously showed that enriched fusaric acid in banana culture induced the resistance of banana seedlings against Foc. The signal of induced resistance increased the phenolic compounds. One of the phenolic compounds is salicylic acid. The aim of this study was to detect induced resistance of banana plant from tissue cultured enriched with fusaric acid. The experiment was done in the field highly infected with Foc. Observation of resistance was done by measuring disease percentage of yellowing and wilting leaves.Tyloses produced in xylem was observed microscopically from cross section of root. Root damage intensity was counted using tyloses score. Salicylic acid content of root was analyzed with phenolic compounds method using HPLC. The results showed that banana plants from enriched tissues culture with 1.165 ppm of fusaric acid increased the resistance against Foc, but salicylic acid was not detected. Salicylic acid was only detected at low concentration (2 ppb) in moderate resistant banana roots from induced plants with 9.32 ppm of fusaric acid. The chromatogram showed three peaks of unknown phenolic compounds. Tyloses intensity was not related with induced resistance of banana against fusarium wilt. Advanced research is needed with more plants samples. It was suggested to identify the phenolic compounds which were detected in induced resistant plant.INTISARILayu fusarium yang disebabkan oleh Fusarium oxysporum f. sp. cubense (Foc) adalah penyakit yang sangat merusak pada pisang dan belum dapat dikendalikan secara tuntas. Gejala berupa kelayuan daun karena tersumbatnya xilem karena pembentukan tilosis yaitu pertumbuhan sel dalam jaringan xilem. Pengimbasan ketahanan diharapkan dapat menjadi salah satu cara pengendalian penyakit layu fusarium. Penelitian sebelumnya menunjukkan penambahan asam fusarat dalam kultur jaringan dapat mengimbas ketahanan bibit pisang terhadap penyakit layu fusarium. Asam salisilat adalah salah satu signal ketahanan yang akan meningkat kandungannya bila terjadi peningkatan ketahanan akibat pengimbasan. Penelitian ini bertujuan untuk mendeteksi hasil pengimbasan ketahanan pisang dengan asam fusarat dalam kultur jaringan. Tanaman telah ditanam di lapangan yang terinfeksi berat oleh Foc. Intensitas penyakit di lapang diamati dengan menghitung persentase daun menguning dan atau layu. Intensitas kerusakan akar diamati dengan pembuatan irisan tipis dan pengamatan tilosis dengan cara skoring. Analisis asam salisilat dalam akar dilakukan dengan metode analisis senyawa fenol menggunakan HPLC. Hasil penelitian tanaman dari bibit yang diimbas dengan 1,165 ppm asam fusarat dalam kultur jaringan menunjukkan peningkatan ketahanan di lapang. Intensitas tilosis lebih rendah pada tanaman yang diimbas ketahanannya dibandingkan yang tidak diimbas. Asam salisilat dalam tanaman yang diimbas ketahannnya denga asam fusarat 9,32 ppm terdeteksi pada konsentrasi yang sangat rendah yaitu 2 ppb, dengan ketahanan moderat. Pada tanaman hasil pengimbasan yang menunjukkan kriteria tahan asam salisilat tidak terdeteksi, namun terdeteksi tiga puncak senyawa fenol yang belum teridentifikasi. Intensitas tilosis pada tanaman yang diimbas ketahanannya tidak menunjukkan penurunan dibandingkan dengan tanaman yang tidak diperlakukan. Penelitian ini perlu dilanjutkan dengan sampel yang lebih banyak. Identifikasi jenis senyawa fenol perlu dilakukan dalam penelitian lanjutan. 
Pengaruh Minyak Atsiri Asal Kulit Jeruk Manis dan Besar terhadap Perkembangan Tungau Panonychus citri (Acarina: Tetranychidae) Mizu lstianto; Kasumbogo Untung; Y. Andi Trisyono; Triwibowo Yuwono
Jurnal Perlindungan Tanaman Indonesia Vol 9, No 2 (2003)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12244

Abstract

P. citri (Acarina: Tetranychidae) is one of the economically important citrus pests in Indonesia. However, the association of this pest with its host is not well understood. The objective of this research was to evaluate the effects of essential oil extracted from sweet orange and pumello fruit peels on the development of P. citri. The research was conducted in the laboratory of IP2TP Tlekung Malang, using a complete random design consisted of six treatments. Fifteen mites were used for each treatment. The treatments were concentrations 10, 20, 40, and 80 ppm of essential oil. Parafin was used as a positive control because it was a diluting solution for the essential oil. The control received no application. The result showed that the main content of essential oil extracted from sweet orange and pumello was limonene. The essential oils prolonged the life cycle and reduced the fecundity of P. citri. The effects of essential oil extracted from pumello were found to be more pronounced than were from sweet orange. These differences might be due to the differences in the composition of the volatile compounds other than limonene.
Effect of Vapor Heat Treatment on the Mortality of Bactrocera dorsalis (Diptera: Tephritidae) and the Quality of Mango cv. Arumanis Tri Wulan Widya Lestari; Arman Wijonarko; Wayan Murdita; Suputa Suputa
Jurnal Perlindungan Tanaman Indonesia Vol 21, No 1 (2017)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.23606

Abstract

Arumanis is a superior export variety mango from Indonesia. One inhibiting factor on the production of this fruit variety is the infestation of Bactrocera dorsalis (Diptera: Tephritidae) fruit fly. Vapor heat treatment was recommended by ISPM No. 28 of 2007 as an effective treatment in eradicating fruit flies. This research was aimed to find out the optimum temperature and the duration of vapor heat treatment on the mortality of egg and larvae of B. dorsalis. The experiment was conducted in the Laboratory of Vapor Heat Treatment, BBPOPT, Jatisari, from October 2016 to January 2017. The observed parameters were temperature, duration of treatment, mortality of egg and larvae of fruit fly, and fruit quality. The results showed that vapor heat treatment at 47°C for 40 minutes (min) was effective to reduce the number of eggs and larvae of B. dorsalis and had no negative impact on the fruit quality. IntisariBuah mangga varietas Arumanis merupakan varietas mangga ekspor unggulan Indonesia. Salah satu faktor pembatas produksi buah mangga varietas Arumanis adalah lalat buah B. dorsalis (Diptera: Tephritidae). Perlakuan uap panas direkomendasikan oleh ISPM Nomor 28 tahun 2007 sebagai tindakan perlakuan yang efektif dalam mengeradikasi lalat buah. Penelitian ini bertujuan untuk mengetahui suhu dan waktu optimum perlakuan uap panas terhadap mortalitas telur dan larva B. dorsalis pada buah mangga varietas Arumanis tanpa merusak kualitas buah. Penelitian dilaksanakan di Laboratorium Vapor Heat Treatment, BBPOPT, Jatisari, pada Oktober 2016 sampai dengan Januari 2017. Parameter yang diamati adalah suhu, lamanya waktu perlakuan, mortalitas telur dan larva lalat buah, dan kualitas buah. Hasil penelitian menunjukkan bahwa perlakuan uap panas pada suhu 47°C selama 40 menit terbukti efektif membunuh telur dan larva B. dorsalis dan tidak berdampak negatif terhadap kualitas buah.
Uret Perusak Akar pada Rumput Halaman Kampus Tri Harjaka; Edhi Martono; Witjaksono Witjaksono
Jurnal Perlindungan Tanaman Indonesia Vol 16, No 2 (2010)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11730

Abstract

The study aims to identify of white grub attacking lawn in the park of campus of University of Gadjah Mada (UGM), Yogyakarta. Observations were conducted since July 2008 until January 2010. The results showed that Lepidiota stigma is a pest cause damage to the grass in the UGM park. The presence of beetles occurred in October of the same beginning of the rainy season. Flight and lay eggs period lasted from October 2009 until January 2010. First instar larvae of L. stigma began there in November and the third instar in the month of January 2010. Factors supporting the attack of L. stigma in the college environment is the availability of grass throughout the year, as the lights and the presence of trees as shelter for adult beetles.
Respons Fungsional Burung Pentet (Lanius sp.) terhadap Belalang Kembara (Locusta migratoria manilensis) Siti Astuti; Kasumbogo Untung; F. X. Wagiman
Jurnal Perlindungan Tanaman Indonesia Vol 15, No 2 (2009)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11771

Abstract

The functional response of predatory bird, Lanius sp. (Passeriformes: Laniidae) on migratory locust [Locusta migratoria manilensis (Orthoptera: Acrididae)] had been studied under restricted condition. The migratory locusts were reared in the green house. Second and fourth nymph instars along with adult stages of the migratory locust were used in this trial. Maximum feeding and functional response of the predatory bird against the migratory locust were determined. Research protocol used follows Holling’s model. Results showed that the maximum feeding of the predatory bird was very high i.e. against 2nd and 4th instars and adult of the locust were 2.75 preys/minute, 0.13 preys/minute, and 0.09 preys/minute; respectively. The relationship between predatory bird and migratory locust fitted with the Holling’ s type 2 functional response. The high feeding rate of the predatory bird revealed that the bird is a promising candidate of biological control agent on migratory locust.
Pemendekan Waktu ELISA dalam Deteksi TMV Susamto Somowiyarjo; Y. B. Sumardiyono; Purwati Widiyati
Jurnal Perlindungan Tanaman Indonesia Vol 2, No 2 (1996)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12891

Abstract

In order to support the program for the management of viral diseases on garlic, a rapid diagnosis procedure was developed by shortening the incubation period of the indirect ELISA. No significant differences of ELISA absorbance were observed when the antigen was incubated for 4 h, 2 h, and 30 min at 37ºC. The incubation period for the antibody and conjugate could he reduced from 4 h at 37ºC or 18 h at 4ºC to 30 min al 37ºC. The shortest period of incubation for the assay could be obtained when each incubation time for the antigen, antibody and conjugate was 30 min. The detection limit for the shortened ELISA was 10^-4 for the virus in crude extracts and 0,5 μg/ml for the purified preparation.
Identifikasi Jenis dan Peranan Kelelawar Buah Penyesap Nira Kelapa di Kecamatan Kokap Kabupaten Kulon Progo Bambang Agus Suripto; Sumaryanti Sumaryanti; Christian Budi
Jurnal Perlindungan Tanaman Indonesia Vol 12, No 1 (2006)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11953

Abstract

Although in Kokap Subdistrict Kulon Progo inibitated by four species of fruit bats and Pteropus vampyrus, but it was not known which species visit and suck nira in coconut trees and considered to be pest by villagers. Since the direct technique is not applicable, it is necessary to develop indirect technique to study them. The objectives of this study are to identify the species of fruit bats which visit and suck nira ofcoconut trees using hair characteristics, and to determine the frequencies of their visit to coconut trees. The hair specimen references are collected from the field and from the laboratory collections. The hair specimens are collected from the surface of 750 nira tubes which applied by glued papers and installed in coconut trees as usual in five villages, prepared and identified. The visiting relative frequency is determined by percentage of the number of the tubes with hairs. In the study area are found Macroglossus minimus (Subfamilia Macroglossinae), Cynopterus brachyotis, Cynopterus horsfieldii, Roussetus amplexicaudatus, and Pteropus vampyrus (Subfamilia Pteropodinae). Based on the type and pattern of hair structure, Cynopterus brachyotis and Cynopterus horsfieldii are very difficult to difference each other, meanwhile the other three species are easily identified. Cynopterus brachyotis, Cynopterus horsfieldii, and Roussetus amplexicaudatus were positively visited and sucked the nira of coconut. The visiting frequencies to nira are Cynopterus (C. brachyotis and C. horsefieldii (12, 8%) and R. amplixicaudatus (5,8%). Conceptually, the fruit bats are more properly called them as nuisance animal, and it is not properly called them as pest of nira of coconuts.

Page 21 of 51 | Total Record : 509

 19   20   21   22   23 

Filter by Year

1995 2025


Reset
Filter By Issues
All Issue Vol 29, No 2 (2025): In Progress Vol 29, No 1 (2025) Vol 28, No 2 (2024) Vol 28, No 1 (2024) Vol 27, No 2 (2023) Vol 27, No 1 (2023) Vol 26, No 2 (2022) Vol 26, No 1 (2022) Vol 25, No 2 (2021) Vol 25, No 1 (2021) Vol 24, No 2 (2020) Vol 24, No 1 (2020) Vol 23, No 2 (2019) Vol 23, No 1 (2019) Vol 22, No 2 (2018) Vol 22, No 1 (2018) Vol 21, No 2 (2017) Vol 21, No 1 (2017) Vol 20, No 2 (2016) Vol 20, No 1 (2016) Vol 19, No 2 (2015) Vol 19, No 1 (2015) Vol 18, No 2 (2014) Vol 18, No 1 (2014) Vol 17, No 2 (2011) Vol 17, No 1 (2011) Vol 16, No 2 (2010) Vol 16, No 1 (2010) Vol 15, No 2 (2009) Vol 15, No 1 (2009) Vol 14, No 2 (2008) Vol 14, No 1 (2008) Vol 13, No 2 (2007) Vol 13, No 1 (2007) Vol 12, No 2 (2006) Vol 12, No 1 (2006) Vol 11, No 2 (2005) Vol 11, No 1 (2005) Vol 10, No 2 (2004) Vol 10, No 1 (2004) Vol 9, No 2 (2003) Vol 9, No 1 (2003) Vol 8, No 2 (2002) Vol 8, No 1 (2002) Vol 7, No 2 (2001) Vol 7, No 1 (2001) Vol 6, No 2 (2000) Vol 6, No 1 (2000) Vol 5, No 2 (1999) Vol 5, No 1 (1999) Vol 4, No 2 (1998) Vol 4, No 1 (1998) Vol 3, No 2 (1997) Vol 3, No 1 (1997) Vol 2, No 2 (1996) Vol 2, No 1 (1996) Vol 1, No 1 (1995) More Issue