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DISEMINASI PGPR SEBAGAI BIOAKTIVATOR DEKOMPOSISI BAHAN ORGANIK DI KELOMPOK USAHA TANI NAGARI SUNGAI ABANG KECAMATAN LUBUK ALUNG KABUPATEN PADANG PARIAMAN Haliatur Rahma; Indra Dwipa; Agustian Agustian; Yaherwandi Yaherwandi; Reflinaldon Reflinaldon; Jumsu Trisno; Armansyah Armansyah; Gusmini Gusmini; Afrima Sari; Ryan Dwi Setyawan; Rika Hariance; Dede Suhendra
Jurnal Hilirisasi IPTEKS Vol 6 No 2 (2023)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v6i2.625

Nagari Sungai Abang is one of the areas in Lubuk Alung District, one of the rice production centers in Padang Pariaman Regency. One farming group that intensively cultivates rice is the Farming Business group. The problem with the farmer groups is their ignorance of the benefits of straw as a source of organic matter in the soil. The composting process is long, so farmers always burn rice straw after harvest in preparation for planting the following season. If the burning of straw is carried out continuously, it is feared that nutrients will be deficient in the soil. This activity aims to empower Farming Business groups in Nagari Sungai Abang, Lubuk Alung District, to utilize Plant Growth Promoting Rhizobacteria (PGPR) as a bio activator in making straw compost as organic fertilizer and an alternative to addressing the problem of straw waste in Nagari Sungai Abang, Lubuk Alung. This activity has been carried out in the Farming Group of Farmers in Sungai Abang Dalam Nagari Sungai Abang, Lubuk Alung District, Padang Pariaman Regency. The method used is outreach, counseling, and training to demonstrate making PGPR suspension and compost from straw. From the activities that have been carried out, ready-to-use PGPR is obtained as a bio activator reproduced in coconut water media and used as a bio activator to speed up the composting process. The conclusion of this activity is increasing farmers' understanding of the benefits of straw as a raw material for compost and the use of PGPR as a bioactivator in making straw compost.

Eksplorasi dan Karakterisasi Rizobakteri untuk Mengendalikan Jamur Fusarium fujikuroi secara In vitro Rahma, Zola Puti; Rahma, Haliatur; Sulyanti, Eri
Jurnal Proteksi Tanaman Vol 8 No 2 (2024): December 2024
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.8.2.123-137.2024

Rhizobacteria is bacteria that found in the root zone of plants. Rhizobacteria can act as biocontrol agents against Fusarium fujikuroi, the fungus that causes bakanae disease in rice plants. This study aimed to obtain rhizobacteria isolates from the roots of rice plants and to determine their characteristics as biocontrol agents against F. fujikuroi in vitro. This research consisted of two stages: 1) Exploration of rhizobacteria from the roots of rice plants in Padang City, West Sumatera, Indonesia and 2) Antagonistic character of Rhizobacteria against F. fujikuroi in vitro including: antagonistic test, hydrolytic enzyme production test (protease, amylase, and chitinase), and HCN compound production test. Based on the research, 32 rhizobacterial isolates were obtained as candidates for biological agents. All rhizobacterial isolates can suppress the growth of Fusarium fujikuroi in vitro with an inhibition percentage of 19.43-73.53%. The 4 best isolates in suppressing the growth of Fusarium fujikuroi are Kr 2.2 from Kuranji, KG 2.2 from Korong Gadang, PA 2.1 and PA 1.2 from Pasar Ambacang with an inhibition percentage of 60.39-73.53%. The four isolates are also able to produce hydrolysis enzymes (protease, amylase and chitinase) and HCN compounds

KAJIAN TEKNO EKONOMI PAKET TEKNOLOGI BAKTERI PERAKARAN PEMACU PERTUMBUHAN TANAMAN (BP3T) PUPUK KANDANG DAN NANO PESTISIDA SERAI WANGI PADA USAHA TANI KAKAO DI KABUPATEN LIMA PULUH KOTA Wahyuni, Sri; Rahma, Haliatur; Trisno, Jumsu; Martinius, Martinius; Noveriza, Rita; Reflin; Yuliani, Sri; Nusyirwan, Nusyirwan; Nefri, Jhon
Jurnal AGRISEP JURNAL AGRISEP VOL 19 NO 01 2020
Publisher : Badan Penerbitan Fakultas Pertanian, Universitas Bengkulu

Plant Growth Promoting Rhizobacteria (PGPR) plus manure technology is designed to control the vascular streak dieback disease (VSD) which attacks cocoa plants, and improve the plant growth. This research aims to compare the cost of using conventional manure and PGPR plus manure technology. This research was designed in a descriptive quantitative approach using cencus data of 43 people who use PGPR plus manure in Kabupaten Limapuluh Kota. The result shows that the conventional fertilizer costs is more expensive than the PGPR plus manure formula. Therefore, it PGPR plus manure formula is recommended for the cacao farmers in Kabupaten Limapuluh Kota.

Bahasa Indonesia: English Rahma, Haliatur; Winarto, Winarto; Akbar, Fajar
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 3 No. 2 (2019): December 2019
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.3.2.75-84.2019

Plant Growth Promoting Rhizobacteria (rhizobacteria)) is a soil bacterium that lives in the root region (rhizosphere), actively colonizes plant roots, can suppress pathogens, and increase plant growth. This study aims to obtain rhizobacterial isolates that have the potential to suppress cob rot disease in planta or in vitro and increase the growth of corn plants. This study used a randomized block design (RBD) for in planta with 15 rhizobacterial treatments, positive control (without F. verticillioides inoculation), and negative controls (F. verticillioides inoculation). Each procedure was repeated three times, and each replication consisted of 3 plants. In vitro testing using a Completely Randomized Design (CRD) with 15 rhizobacterial treatments and one control. Each repeated three times. Data were analyzed using variance analysis, if significantly different, continued with Duncan's New Multiple Range Test (DNMRT) at a 5% level. The results showed that LA2MKB 5.2 isolate was the isolate that had the best ability to suppress the development of F. verticillioides in planta with total effectiveness of 90.14%. LMTSA 5.4 isolate is the isolate that has the highest percentage of inhibition of dual culture in its ability as an antagonist of F. verticillioides in vitro, which is 7.20%.

Bahasa Indonesia: english Putri, Wahyuni Eka; Winarto, Winarto; Rahma, Haliatur
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 4 No. 2 (2020): December 2020
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.4.2.52-63.2020

Anthracnose or leaf fall disease caused by Gloeosporium gloeosporioides is a pathogen that attacks cocoa plants during the nursery phase and production. This study aimed to obtain the best rhizobacteria, which can induce cocoa seeds resistance to anthracnose and increase seedling growth. The study was conducted in a greenhouse, Faculty of Agriculture, Universitas Andalas, in 2019, using a randomized block design with 32 treatments and three replications. The treatments were the different isolates, sourced from Guguak (GK1, GK2, GK3), Akabiluru (AK1, AK2), Lubuk Minturun (LM1, LM2), Tanjung Alai (TA1, TA2, Ta3, TA4, TA5, TA6, TA7, TA8 , TA9, TA10, TA11, TA12, TA13, TA14, TA15, TA16, TA17, TA18), Singkarak (SK1, SK2, SK3, SK4, SK6), and two controls. The results showed that AK2 isolates from Akabiluru could suppress the development of anthracnose and support the growth of cocoa seedlings. The application of AK2 isolates was able to extend the incubation period of G. gloeosporioides, reduce the incidence of disease and the rate of disease infection, and help increase the number of areas and leaf numbers.Keywords: Anthracnose, cocoa seedling, Gloeosporium gloeosporioides, plant induction, Rhizobacteria

Potensi Plant Growth-Promoting Bacteria Menekan Cucumber mosaic virus pada Tanaman Mentimun: The Potential of Plant Growth-Promoting Bacteria to Suppress Infection of Cucumber mosaic virus on Cucumber Plants Ridho, Muhammad Arif; Rahma, Haliatur; Martinius; Trisno, Jumsu
Jurnal Fitopatologi Indonesia Vol. 21 No. 1 (2025): Maret 2025
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.21.1.38-50

The Potential of Plant Growth-Promoting Bacteria to Suppress Infection of Cucumber mosaic virus on Cucumber Plants Mosaic disease caused by Cucumber mosaic virus (CMV) is one of the main diseases of cucumber plants, and is economically important. Plant growth-promoting bacteria (PGPB) are plant root organisms currently being developed as biological agents. This research aims to obtain the best PGPB that can suppress the development of CMV in cucumber plants. This research used a randomized block design with nine treatments and five replications. The treatments consisted of several isolates of PGPB (Serratia marsescens AR1, Alcaligenes faecalis AJ14, Stenotrophomonas pavanii KJKB 5.4, Pseudomonas fluorescens LPK1–9, Bacillus cereus AJ 34, and S. maltophilia LMTSA 5.4), orthohydroxybenzoic acid (salicylic acid), positive control, and negative control. Application of PGPB was conducted through seed treatment of cucumber seeds for 15 minutes before planting. The mosaic virus was mechanically inoculated on cucumber cotyledons seven days after planting. The variables observed were the development of mosaic disease and the growth of cucumber plants. Virus detection using specific primer pair CMV-IF/CMV-IR showed that the virus that infected cucumber plants had 98.3% similarity to the CMV isolate originating from India with accession number KJ874248.1. Pseudomonas fluorescens LPK1-9 is the best bacteria for slowing the incubation period, reducing the percentage of infected leaves, and reducing the severity of mosaic disease on cucumber plants. None of tested PGPB isolates that has the potential to increase the growth of CMV-infected cucumber plants. Therefore, further studies are needed on the effectiveness of the PGPB, such as improving how PGPB is applied.

Potensi Konsorsium Rizobakteri untuk Pengendalian Penyakit Bercak Daun Bersudut (Pseudomonas syringae pv. lachrymans) serta Peningkatan Pertumbuhan dan Hasil Tanaman Mentimun (Cucumis sativus L.) Sufia, Yolanda; Rahma, Haliatur; Resti, Zurai
Jurnal Agrikultura Vol 37, No 1 (2026): April, 2026
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v37i1.67560

Pseudomonas syringae pv. lachrymans (Psl) merupakan bakteri patogen penyebab penyakit bercak daun bersudut pada mentimun (Cucumis sativus L.) yang dapat menurunkan produksi secara signifikan. Salah satu alternatif pengendalian ramah lingkungan adalah melalui penggunaan konsorsium rizobakteri. Penelitian ini bertujuan untuk memperoleh konsorsium rizobakteri terbaik dalam menekan perkembangan penyakit bercak daun bersudut serta meningkatkan pertumbuhan dan hasil tanaman mentimun. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan tujuh perlakuan, terdiri atas enam perlakuan konsorsium rizobakteri dan kontrol. Kontrol digunakan sebagai pembanding baik untuk parameter penyakit (tanpa konsorsium, diinokulasi patogen) maupun pertumbuhan tanaman (tanpa konsorsium dan tanpa inokulasi patogen), masing-masing dengan tiga ulangan dan tiga unit percobaan. Perlakuan terdiri atas konsorsium (RKKL 1.2 + RKKL 1.3), (RKKL 1.2 + RKPAL 1.2), (RKKL 1.2 + RPKKL 1.1), (RKKL 1.3 + RPKKL 1.1), (RKPAL 1.2 + RPKKL 1.1), serta (RKKL 1.2 + RKPAL 1.2 + RPKKL 1.1). Benih mentimun direndam dalam suspensi konsorsium rizobakteri berkepadatan 10⁸ sel/ml selama 15 menit sebelum tanam. Inokulasi patogen Psl dilakukan pada tanaman berumur 15 hari setelah tanam dengan kepadatan 10⁸ sel/ml. Parameter yang diamati meliputi perkembangan penyakit (masa inkubasi, kejadian, dan keparahan penyakit), pertumbuhan (tinggi tanaman, jumlah daun, dan waktu muncul bunga pertama), serta hasil tanaman (bobot buah). Hasil penelitian menunjukkan seluruh konsorsium rizobakteri mampu menekan perkembangan penyakit dan meningkatkan pertumbuhan serta hasil mentimun. Konsorsium RKKL 1.2 + RKPAL 1.2 + RPKKL 1.1 merupakan perlakuan terbaik dengan keparahan penyakit 3,15% dengan tingkat hambat relatif penyakit 71,95%, tinggi tanaman 157,22 cm (peningkatan 15,69%), dan bobot buah 411,55 g (peningkatan 164,95%).

DISEMINASI TEKNOLOGI PUPUK KANDANG SAPI PLUS RIZOBAKTERI PADA KELOMPOK TANI KAKAO DI KABUPATEN LIMAPULUH KOTA Haliatur Rahma; Jumsu Trisno; Martinius Martinius; Reflin Reflin; Sri Wahyuni; Nusyirwan Nusyirwan
Jurnal Hilirisasi IPTEKS Vol. 1 No. 4.a (2018)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar

Kegiatan diseminasi teknologi pupuk kandang sapi plus rizobakteri pada tanaman kakao dilakukan di Kecamatan Guguak dan Akabiluru Kabupaten Lima Puluh Kota yang dimulai dari bulan Maret sampai dengan November 2018. Kegiatan ini bertujuan untuk mengenalkan teknologi formulasi pupuk kandang plus rizobakteri pada kelompok tani kakao. Inovasi, buah lobek, maju sejahtera dan aroma menggunakan metode penyuluhan. Pentingny kegiatan ini dilakukan disebabkan oleh tingginya kejadian dan keparahan penyakit VSD di Kecamatan Guguak dan Akabiluru Kabuparten Limapuluh Kota yang mencapai 86,60%. Untuk itu, diperlukan teknologi pengendalian yang mudah dibuat, murah dan bahan baku yang mudah diperoleh disekitar petani. Penggunaan air kelapa merupakan salah satu perbanyakan bakteri Serratia maresescens dan Pseudomonas fluorescens yang nanti akan diformulasi dengan pupuk kandang. Kegiatan ini meliputi: pemantauan tingkat serangan OPT dilahan kelompok tani kakao, kemudian dilanjutkan dengan penyuluhan, pelatihan, dan evaluasi hasil kegiatan. Dari hasil kegiatan bahwa kegiatan ini mampu meningkatkan pengetahuan petani terhadap penggunaan biofertilizer yang berasal dari bakteri yang diformulasikan dengan air kelapa dan pupuk kandang, sehingga penggunaan formulasi ini mampu mengurangi biaya penggunaan pupuk kimia yang memiliki harga yang mahal.

DISEMINASI PGPR SEBAGAI BIOAKTIVATOR DEKOMPOSISI BAHAN ORGANIK DI KELOMPOK USAHA TANI NAGARI SUNGAI ABANG KECAMATAN LUBUK ALUNG KABUPATEN PADANG PARIAMAN Haliatur Rahma; Indra Dwipa; Agustian Agustian; Yaherwandi Yaherwandi; Reflinaldon Reflinaldon; Jumsu Trisno; Armansyah Armansyah; Gusmini Gusmini; Afrima Sari; Ryan Dwi Setyawan; Rika Hariance; Dede Suhendra
Jurnal Hilirisasi IPTEKS Vol. 6 No. 2 (2023)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v6i2.625

Nagari Sungai Abang is one of the areas in Lubuk Alung District, one of the rice production centers in Padang Pariaman Regency. One farming group that intensively cultivates rice is the Farming Business group. The problem with the farmer groups is their ignorance of the benefits of straw as a source of organic matter in the soil. The composting process is long, so farmers always burn rice straw after harvest in preparation for planting the following season. If the burning of straw is carried out continuously, it is feared that nutrients will be deficient in the soil. This activity aims to empower Farming Business groups in Nagari Sungai Abang, Lubuk Alung District, to utilize Plant Growth Promoting Rhizobacteria (PGPR) as a bio activator in making straw compost as organic fertilizer and an alternative to addressing the problem of straw waste in Nagari Sungai Abang, Lubuk Alung. This activity has been carried out in the Farming Group of Farmers in Sungai Abang Dalam Nagari Sungai Abang, Lubuk Alung District, Padang Pariaman Regency. The method used is outreach, counseling, and training to demonstrate making PGPR suspension and compost from straw. From the activities that have been carried out, ready-to-use PGPR is obtained as a bio activator reproduced in coconut water media and used as a bio activator to speed up the composting process. The conclusion of this activity is increasing farmers' understanding of the benefits of straw as a raw material for compost and the use of PGPR as a bioactivator in making straw compost.

Induction of Resistance to Larvae Crocidolomia pavonana F. (Lepidoptera: Crambidae) using Rhizobacteria to the Cabbage Indri Yanil Vajri; Trizelia; Haliatur Rahma
Andalasian International Journal of Entomology Vol. 2 No. 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.2.1.15-23.2024

Crocidolomia pavonana is a significant pest on cabbage that reduces the quality and quantity of cabbage. Utilizing microorganisms such as rhizobacteria is an alternative environmentally friendly control that can potentially suppress the development of this pest. The study aimed to obtain rhizobacteria isolates capable of colonizing cabbage tissue and inducing plant resistance to C. pavonana larvae. The research was conducted at the Biological Control Laboratory and Greenhouse, Faculty of Agriculture, Universitas Andalas, Padang. The study used a Completely Randomized Design (CRD) with ten treatments and five replications. The treatment consisted of rhizobacteria isolates, including Bacillus thuringiensis, Bacillus subtilis, Serratia marcescens, Stenotrophomonas maltophilia, as well as a negative control (aquadest sterile) and a positive control (Cypermethrin insecticide). The test was carried out by soaking the seeds in a suspension containing rhizobacteria with a population density of 10⁸ cells/ml. The variables observed were larval mortality, pupa and imago formation percentage, and increased salicylic acid production. The data were analyzed using variance and continued with the LSD further test at the 5% level. The results showed that all rhizobacteria isolates colonized into cabbage plant tissue could kill C. pavonana larvae and inhibit these insects' biological development. B. thuringiensis KJKB7.3 showed better results with the highest mortality value (62.67%). Soaking cabbage seeds with rhizobacteria can increase the content of salicylic acid. Based on this research, the rhizobacteria used in the research have the potential to be developed as biological agents to control C. pavonana.

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