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INDONESIA
JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION)
Published by Universitas Andalas
ISSN : 25800604     EISSN : 26213141     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 6 No 1 (2022): Juni" : 6 Documents clear
Kemampuan Beberapa Agens Hayati dalam Menginduksi Ketahanan Tanaman Padi dari Serangan Pyricularia oryzae secara In Vivo dan In Vitro Shyntiya Ayu Lestari; Evan Purnama Ramdan; Risnawati Risnawati; Edi Minjai Pribadi
JPT: JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Vol 6 No 1 (2022): Juni
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.1.1-12.2022

Abstract

Rice (Oryza sativa Linnaeus) is the main food crop that is needed daily for the majority of Indonesian people. One of the diseases that increase rice production is the attack of pests and other diseases caused by Pyricularia oryzae. Biological agents are an alternative to control this disease. Therefore, the aim of this study was to determine the effectiveness of the induction of rice plant resistance using several biological agents against blast disease. The study was carried out in 2 stages, the first in vivo using a Randomized Block Design consisting of 4 biological agent treatments, namely Trichoderma sp., Bacillus subtilis, Pseudomonas fluorescens and sterile Aquades (control) which was repeated 6 times with each replication consisted of 3 plant samples so that the total number of samples observed was 72 plant samples. The second stage was carried out in vitro by inoculating P. oryzae on 3 pieces of rice plant leaves as a result of in vivo experiments. The design used was a completely randomized design with 4 agent treatments which were repeated 6 times. The results showed that the induction of rice plant resistance with P. fluorescens was able to reduce the severity of disease caused by P. oryzae attack (72.22%), with a decrease in efficacy of 25.48%, and the lowest AUDPC (691.66). In general, the resistance induction did not affect rice growth, but Trichoderma sp and P. fluorescens were able to increase the grain weight produced (3.11 and 2.80 g per plant, respectively).
Potensi Ekstrak Rimpang Jahe dalam Menghambat Pertumbuhan Sclerotium rolfsii pada Kacang Tanah secara In Vitro Syafitri Syafitri; Eri Sulyanti; Arneti Arneti; Fradilla Swandi
JPT: JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Vol 6 No 1 (2022): Juni
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.1.54-63.2022

Abstract

Sclerotium rolfsii is a fungus that causes stem rot disease in peanuts which causes losses of up to 59%. One technique of controlling the S. rolfsii is using a botanical fungicide, such as ginger (Zingiber officinale Rosc.) rhizome extract. This study aimed to determine the proper concentration of ginger rhizome extract to control S.rolfsii, the causes of stem rot, and damping-off diseases in peanut in-vitro. This study used a completely randomized design with five treatments and five replications. The treatments were arranged in the concentration of 0, 4%, 6%, 8%, and 10% by in-vitro. The data were analyzed using ANOVA, followed by an LSD of 5%. The results showed that ginger rhizome extract could suppress the growth of S. rolfsii, which causes stem rot disease in peanut plants. Ginger rhizome extract reduced the thickness of the colonies, suppressed colony expansion, reduced the wet and dry weight of the colonies, slowed the appearance of Sclerotia, and reduced the number of Sclerotia formed. The higher concentration, the higher the emphasis on S. rolfsii. Ginger rhizome extract at a concentration of 10% can inhibit colony growth by 81.63%, inhibit the formation of sclerotia by 100%, reduce the wet weight of the colony to 66.88% and the dry weight of the colony to 44.11% and inhibit the formation of Sclerotia reaching 100%.
Antagonism of Indigenous Fungi Collected from the Bamboo Clump against Fusarium sp., the Cause of Fusarium Wilt Disease in Garlic Ayu Lestiyani; Lia Fauziah; Sugiyarto Sugiyarto
JPT: JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Vol 6 No 1 (2022): Juni
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.1.12-24.2022

Abstract

Indigenous fungi can be found around bamboo clumps. This study aimed to identify indigenous fungi isolated from the bamboo clump as biological control agents against pathogenic fungi of Fusarium sp. in garlic. The study was conducted from June to September 2021 at the Laboratory of Pest and Disease Observation, Temanggung Regency, Central Java, Indonesia. The current research design involved the following three steps, (1) Isolation and identification of the pathogenic fungi of Fusarium sp. in garlic, (2) Isolation and identification of indigenous fungi collected from the bamboo clump, and (3) Antagonism test of indigenous fungi isolated from the bamboo clump against Fusarium sp. in-vitro. The results showed that ten species were successfully identified, and five species had the potential as biological control agents against Fusarium sp. in garlic; Penicillium sp., Mucor sp., Aspergillus sp1, Aspergillus sp2, and Tricho-derma sp. Trichoderma sp. revealed the highest antagonism (66.71%), while Penicillium sp. revealed the lowest antagonism (32.925%) against Fusarium sp. Based on their antagonistic potential, Trichoderma sp. showed the highest ability to suppress Fusarium sp. (66.71%), while the lowest one was Penicillium sp. (32.92%).
Kemampuan Antagonis Bakteri Endofit dan Konsorsiumnya terhadap Pertumbuhan Jamur Culvularia oryzae Bugnic Zurai Resti; Martinius Martinius; Yenny Liswarni
JPT: JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Vol 6 No 1 (2022): Juni
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.1.34-42.2022

Abstract

E Endophytic bacteria have several advantages, including controlling plant pathogens and increasing plant growth. As a biological control, endophytic bacteria can suppress the development of plant pathogenic fungi. This study aimed to obtain endophytic bacteria and the consortium of endophytic bacteria that can inhibit the growth of C. oryzae. The study used a Completely Randomized Design (CRD) for studying the ability of endophytic bacteria using eight isolates: Bacillus sp HI, Bacillus sp SJI, B. cereus P14, B. cereus Se07, Serratia marcescens strain JB1E2, S. marces-cens strain JB3, S. marcescens strain ULG1E2 and S. marcescens strain ULG1E4, with three replications. For Studying the ability of endophytic bacteria consortium using six endophytic bacteria consortia and control with three replications. Observations were made on the inhibition growth of C. oryzae. The results showed that all endophytic bacteria and the endophytic bacteria consortium could inhibit C. oryzae, with inhibition of 58.50% – 75.00% and 38.00% – 77.00%. Endophytic bacteria which can significantly suppress the growth of C. oryzae were B. cereus Se07, Bacillus sp HI and Bacillus sp SJI with inhibition of 75.00%, 70.50%, and 70.00%. The endophytic bacteria consortium that had a high ability to suppress the growth of C. oryzae was the consortium of B (S. marcescens strain ULG1E4, S. marcescens strain JB1E3), D (Bacillus sp SJI, Bacillus sp HI, S. marcescenns JB1E3), and G (Bacillus sp SJI, S. marcescens strain ULG1E4), with inhibition of 77.00%, 72.33%, and 71.33%, respectively.
Efektivitas Ekstrak Daun Mangkokan (Nothopanax scutellarium Merr) dengan Pemrosesan Berbeda untuk Pengendalian Keong Mas (Pomacea canaliculata Lamarck) Rusdi Rusli; Imelda Sari; Munzir Busniah
JPT: JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Vol 6 No 1 (2022): Juni
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.1.25-33.2022

Abstract

Mangkokan leaves (Nothopanax scutellarium Merr) have been used to control golden snail (Pomacea canaliculata Lamarck) in several preparations. This research aimed to study the most effective preparation of the mangkokan leaf extract to control the golden snail. The research was conducted in the Insect Bioecology Laboratory and agriculture field in Batu Busuak Village, Pauh District, Padang City, from March to April 2021. This study used a Completely Randomized Design (CRD) consisting of five treatments and five replications. The treatments were several preparations of mangkokan leaves with a concentration of 5 g/l: control, fresh, boiled, sun-dried, and oven-dried. The observed variables were mortality of the golden snail, the weight of feed consumed, and the decrease in the eating activity of the golden snail. The result showed that botanical molluscicide from mangkokan leaves preparation by oven-dried and fresh were the two most effective in controlling the golden snail because they caused 100 % mortality of the golden snail, reduced the feed number consumed, with decreasing in feeding activity of 54.91% and 52.94%.
Identifikasi dan Penentuan Pohon Filogenetik Spodoptera frugiperda Asal Jawa Berdasarkan Analisis Sekuen MtDNA COI Ani Widarti; Enie Tauruslina; Idah Faridah; Willing Bagariang; Hadi Suyanto; Didah Mahmudah; Rista Susanti; Rosalia Maryana; Carwika Carwika
JPT: JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Vol 6 No 1 (2022): Juni
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.1.43-52.2022

Abstract

Molecular confirmation of the existence of Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) on Java Island has not been widely reported. This study aimed to identify the armyworm from Java Island molecularly based on DNA mitochondrial cytochrome oxidase I (MtDNA COI). There were six armyworms collected from West Java Province (Cirebon - JWB1, Garut - JWB2), Central Java Province (Wonogiri - JWTH), East Java Province (Gresik - JWTR), DI Yogyakarta Province (Bantul - DIY), and Banten Province (Serang - BNT). The results showed that the fall armyworm originating from Java was verified as Spodoptera frugiperda. There were genetic variations between them, which had species closeness between regions and countries, namely the genetic similarity of S. frugiperda Java and West Sumatra, as well as to China, Korea, and India. S. frugiperda from Central Java (JWTH), Banten (BNT), West Java 1 (JWB1), and Yogyakarta (DIY) has genetic similarity to S. frugiperda from Solok (No. Acc. MW876212.1), West Pasaman (No. Acc. MW876211.1), China (No.Acc. MK591010.1) and Korea (No.Acc. MN427930.1). Meanwhile, S. frugiperda West Java (JWB2) and East Java have genetic similarity to S. frugiperda from India (No. Acc. MT732476.1), Padang Pariaman (No. Acc. MW876208.1), and Tanah Datar (No. Acc. MW87621.0).

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