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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 161 Documents
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Accuracy and Prediction of Hopperburn by Brown Planthopper (Nilaparvata Lugens Stal) with Sentinel-2 Images Gunawan, Rahmad; Reflinaldon, Reflinaldon; Yaherwandi, Yaherwandi
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 5 No. 2 (2021): December 2021
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.107-117.2021

Abstract

Forecasting of brown planthopper attack or BPH (Nilaparvata lugens Stal) using artificial intelligence and vegetation index of Sentinel-2 Satellite Imagery improves forecasting the incidence of hopperburn. This study aimed to determine the accuracy and correlation of the random forest classification of Sentinel-2 imagery to the incidence of hopperburn reported by Plant Pest Organisms Observer (PPOO) and determine the best method for predicting it. The study was done through observation and secondary data processing about the age of the plant, the incidence of hopperburn by BPH, interviews with farmers, and PPOO. The results showed that the hopperburn NDVI index ranged from 0.23 - 3.8. The random forest classification accuracy was high (Kappa Index = 0.82). The relationship between the hopperburn area from the PPOO report and the predicted area from Sentinel-2 images classified as (R2 = 0.53, R = 0.728) with the equation Y = -1.5 + 0.82 X. The correlation can be improved using spatial regression Geographically Weighted Regression (GWR4) with the best gaussian distance of 1.76 km (R2 = 0.6, R = 0.77). The best prediction for the NDVI stage of hopperburn attack time series with random forest (RMSE = 0.12819) was better than the prediction of the hopperburn attack time series with the exponential smoothing method from the PPOO report (RMSE 3.302184).
Efficacy of Neem Leaf and Seed Powder in Teabag to Control Sitophilus oryzae on Rice Aflah, Nurul; Afriana, Hafidhah; Husni, Husni; Chamzurni, Tjut; Jauharlina, J
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 5 No. 2 (2021): December 2021
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.98-106.2021

Abstract

Neem (Azadirachta indica Juss) powder is often used as a botanical insecticide which is applied directly to stored rice to control the rice beetle (Sitophilus oryzae), however this method may cause contamination on the stored rice. This study aimed to determine the effectiveness of neem leaf and seed powder in teabag packaging in controlling S. oryzae. The study used a completely randomized design with a factorial pattern consisting of 2 treatment factors. The first factor was the type of neem powder (without powder, leaf powder, and seed powder), and the second factor was the application technique (direct sow and in teabag packaging). The results showed that the type of neem powder and its application technique on rice interacted significantly in causing mortality of S. oryzae at 2 - 3 days after treatment (DAT) and was very significant at observations of 4-7 DAT. Applying leaf and seed powder in teabag packaging can provide higher yields than direct sowing. At 7 DAT, the highest mortality of S. oryzae occurred in the treatment of neem seed powder with direct sow application technique (57.50%), the mortality was lower in tea packaging (33.33%). The application of neem powder in teabag packaging caused a higher number of the adult of the first offspring of S. oryzae and the damage to rice. The application of leaf and seed powder of neem in teabag packaging does not cause contamination of rice, so it is safer for consumers.
Effect of Induced Plant Expression on Ants and Extrafloral Nectaries Number in Cotton and Castor: English Thiyagarajan, Nalini; Mani, Revathi
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 5 No. 2 (2021): December 2021
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.89-97.2021

Abstract

Plant response to the attack of herbivores is a usual phenomenon, but the number of extrafloral nectaries (EFNs) in response to herbivore attack is least studied and recorded. The current study was undertaken to document the response of cotton (Gossypium hirsu-tum Linnaeus) and castor (Ricinus communis Linnaeus) to herbivore and artificial induction. This field research was carried out experimentally on cotton and castor in two study models. The first study was the presence of ants on plants induced by herbivore (with herbivore, without herbivore) and the number of EFNs produced by each plant. The second study was the presence of ants on artificially induced plants (damaged leaves, undamaged leaves) and the number of EFNs produced by each plant. The results revealed that EFNs numbers in cotton and castor were increased by herbivore and artificial inductions, which also induced the number of ant recruitment events in cotton and castor. Artificial induction techniques can be utilized in pest management programs to attract and conserve plant guards, viz., biocontrol agents, including ants in the field. EFN is a cheap resource in quickly and effectively maintaining consistent population levels of biocontrol agents within the crops, even during pest-free times.
Dual Infection of Pepper Yellow Leaf Curl Virus and Chilli Veinal Mottle Virus in Causing the Yellow leaf Curl Disease on Chili Trisno, Jumsu; Jamsari, Jamsari; Hidayat, Sri Hendrastuti
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 5 No. 2 (2021): December 2021
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.5.2.77-88.2021

Abstract

Yellow leaf curl disease is the primary disease in chili plants with up to 100% losses. Detection from the field showed a mixed infection between Geminivirus or Pepper Yellow Leaf Curl Virus (PYLCV) and several viruses, including Chilli Veinal Mottle Virus (ChiVMV) and Cucumber mosaic Virus (CMV). Therefore, this study aimed to determine the role of PYLCV and ChiVMV dual infection in influencing the development of chili yellow leaf curl disease. This study used a completely randomized design (CRD) with six treatments and ten replications. The treatments used were multiple Geminiviruses and ChiVMV infections simultaneously, before ChiVMV co-infection, after Geminivirus infection, single infection and whithout infection viruses. The results showed that the presence of ChiVMV infection before, after, and concurrently with Geminiviruses infection could increase the yellow leaf curl disease intensity and reduce plant height and wet weight growth. The mean scale value of ChiVMV infection before, after, and concurrently with Geminiviruses infection were 3.38, 3.90 and 3.58 compared to single Geminiviruses infection (scale of 3.20) and single ChiVMV (scale of 1.33). The interaction analysis of ChiVMV and geminiviruses infections based on the percentage reduction in plant growth height and wet weight showed additive interaction. ChiVMV co-infection further exacerbated the incidence of yellow leaf curl diseases in chilies.
The Ability of Several Biological Agents to Induce Resistance of Rice from Pyricularia oryzae Attacks In Vitro and In Vivo: Kemampuan Beberapa Agens Hayati dalam Menginduksi Ketahanan Tanaman Padi dari Serangan Pyricularia oryzae secara In Vivo dan In Vitro Lestari, Shyntiya Ayu; Ramdan, Evan Purnama; Risnawati, Risnawati; Pribadi, Edi Minjai
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 6 No. 1 (2022): June 2022
Publisher : Plant Protection Department, Faculty of Agriculture, 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).
Antagonism of Endophytic Bacteria and the Consortium Against Culvularia oryzae Bugnic: Kemampuan Antagonis Bakteri Endofit dan Konsorsiumnya terhadap Pertumbuhan Jamur Culvularia oryzae Bugnic Resti, Zurai; Martinius, Martinius; Liswarni, Yenny
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 6 No. 1 (2022): June 2022
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

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

Abstract

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.
Antagonism of Indigenous Fungi Collected from the Bamboo Clump against Fusarium sp., the Cause of Fusarium Wilt Disease in Garlic: Daya Antagonis Jamur Indigenus dari Rumpun Bambu terhadap Fusarium sp., Penyebab Layu Fusarium pada Bawang Putih Lestiyani, Ayu; Fauziah, Lia; Sugiyarto, Sugiyarto
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 6 No. 1 (2022): June 2022
Publisher : Plant Protection Department, Faculty of Agriculture, 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%).
The Effectiveness of Ginger Rhizome Extract to Inhibit the Growth of Sclerotium rolfsii in Peanut In-vitro: Potensi Ekstrak Rimpang Jahe dalam Menghambat Pertumbuhan Sclerotium rolfsii pada Kacang Tanah secara In Vitro Syafitri, Syafitri; Sulyanti, Eri; Arneti, Arneti; Swandi, Fradilla
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 6 No. 1 (2022): June 2022
Publisher : Plant Protection Department, Faculty of Agriculture, 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%.
Effectivity of Mangkokan Leaf Extract (Nothopanax scutellarium Merr) with Different Treatments to Control Golden Snail (Pomacea canaliculata Lamarck): Efektivitas Ekstrak Daun Mangkokan (Nothopanax scutellarium Merr) dengan Pemrosesan Berbeda untuk Pengendalian Keong Mas (Pomacea canaliculata Lamarck) Rusli, Rusdi; Sari, Imelda; Busniah, Munzir
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 6 No. 1 (2022): June 2022
Publisher : Plant Protection Department, Faculty of Agriculture, 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%.
English: Infeksi Jamur Pascapanen pada Biji Kopi Arabika (Coffea arabica Linnaeus) di Daerah Sentra Kopi Arabika, Provinsi Sumatera Barat, Indonesia Martinius, Martinius; Fauzi, Aziz; Resti, Zurai
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 6 No. 2 (2022): December 2022
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.6.2.1-10.2022

Abstract

Post-harvest fungi attacks in storage can reduce the quality of Arabica coffee. The study aimed to determine the level of infection and types of post-harvest fungi in Arabica coffee beans and their quality. The research was carried out at the Phytopathology Laboratory of Plant Pests and Diseases Department and the Seed Technology Laboratory of Agronomy Department, Agriculture Faculty, Universitas Andalas, Padang, from June to August 2021. The infection level of post-harvest fungi was detected using the blotter method. Physical quality was determined based on the percentage of defects, and the quality of the coffee beans was classified according to the Indonesian National Standard (SNI). The samples were taken from three collectors in each of the three central districts of Arabica coffee, West Sumatera province (Solok Selatan, Pesisir Selatan, Lima Puluh Kota) and one sample from Solok Radjo Cooperative as a comparison. The results showed that post-harvest fungi that attacked Arabica coffee beans in West Sumatra belong to the Aspergillus genus, namely Aspergillus niger, A. flavus, and A. ochraceus. The highest post-harvest fungi attack was from Lima Puluh Kota (63.67%), and the lowest was from Solok Radjo (27%). The fungus with the highest infection rate was A. niger (38.83%), and the lowest was A. flavus (0.53%). The best quality of Arabica coffee beans was found in Solok Radjo (quality 3), with a water content that suitable with SNI standards.

Page 13 of 17 | Total Record : 161

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