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All Journal Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian Jurnal Ilmiah Ilmu Terapan Universitas Jambi

Husda Marwan

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Author-ID : 316781

Agriculture, Biological Sciences & Forestry Education Engineering Environmental Science Industrial & Manufacturing Engineering

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Articles

POTENSI Bacillus spp. DARI RIZOSFER TANAMAN KEDELAI UNTUK MENGENDALIKAN PENYAKIT REBAH KECAMBAH (Sclerotium rolfsii Sacc.) Poppy Oktania; husda marwan; Asniwita Asniwita
Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian Vol. 1 No. 1 (2018): Jurnal Agroecotania: Publikasi Nasional Ilmu Budidaya Pertanian
Publisher : Jambi University, Fakultas Pertanian, Program Studi Agroekoteknologi

Bacillus merupakan rizobakteri yang dapat menghambat patogen tanaman dengan mekanisme antagonis berupa antibiosis. Bacillus spp. dapat mengendaliakan penyakit rebah kecambah yang disebabkan oleh Sclerotium rolfsii pada tanaman kedelai. Penelitian ini bertujuan untuk mendapatkan isolat bakteri Bacillus spp. dari rizosfer tanaman kedelai untuk mengendalikan penyakit rebah kecambah pada tanaman kedelai. Pelaksanaan pengujian bakteri dilakukan secara in vitro dan in planta. Pengujian secara in planta menggunakan Rancangan Acak Lengkap dengan 14 perlakuan terdiri atas 2 perlakuan kontrol (sehat dan sakit), 1 perlakuan menggunakan fungisida, dan 11 perakuan menggunakan isolat bakteri Bacillus spp. Hasil pengujian menunjukan bahwa perlakuan bakteri Bacillus spp. berpengaruh nyata terhadap persentase rebah kecambah. Terdapat beberapa isolat mampu menekan penyakit rebah kecambah sebelum muncul kepermukaan tanah dan semua bakteri Bacillus spp. mampu menekan penyakit rebah kecambah setelah muncul kepermukaan tanah pada tanaman kedelai. Kata kunci : rizobakteri, Bacillus spp., penyakit rebah kecambah, Sclerotium rolfsii

EKSPLORASI Bacillus spp. DARI RIZOSFER TANAMAN KARET (Hevea brasilliensis) DAN POTENSINYA SEBAGAI AGENS HAYATI JAMUR AKAR PUTIH (Rigidoporus sp.) Riris Butarbutar; Husda Marwan; Sri Mulyati
Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian Vol. 1 No. 2 (2018): Jurnal Agroecotania: Publikasi Nasional Ilmu Budidaya Pertanian
Publisher : Jambi University, Fakultas Pertanian, Program Studi Agroekoteknologi

Bacillus merupakan rizobakteri yang dapat menghambat patogen tanaman dengan mekanisme antagonis berupa antibiosis. Bacillus spp. dapat mengendaliakan penyakit jamur akar putih yang disebabkan oleh Rigidoporus sp. pada tanaman karet. Penelitian ini bertujuan untuk mendapatkan isolat bakteri Bacillus spp. dari rizosfer tanaman karet dan potensinya sebagai agens hayati dalam mengendalikan penyakit jamur akar putih pada tanaman karet. Isolasi bakteri dilakukan dari rizosfer pertanaman karet sehat dan selanjutnya untuk mengetahui kemampuan agens hayati dilakukan uji antagonis terhadap Rigidoporus sp.. Pelaksanaan pengujian bakteri dilakukan secara in vitro dan dilakukan juga uji karakterisasi bakteri. Hasil isolasi dari rizosfer pertanaman karet diperoleh 108 isolat bakteri, 106 isolat bakteri negatif hipersensitif, dan 71 isolat bakteri yang memiliki kemampuan menghambat koloni jamur akar putih secara in vitro. Isolat bakteri rizosfer mampu menekan pertumbuhan Rigidoporus sp. sebesar 21,86 % sampai 46,05 %. Hasil pengamatan menunjukkan Bacillus sp. yang diperoleh mampu menghasilkan enzim kitinase, menambat nitrogen, dan melarutkan fosfat, sehingga bakteri ini mampu berkompetisi mendapatkan nutrisi yang akhirnya mengimbas tanaman sehingga tahan terhadap jamur akar putih.

Uji Viabilitas Cendawan Peronospora Manshurica Pada Biji Kedelai Impor Penyebab Penyakit Bulai (Downy Mildew) Hayati, Islah; Susanti, Ani Ardiana; Marwan, Husda; Mapegau, Mapegau
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 6 No. 1 (2022): Volume 6, Nomor 1, Juni 2022
Publisher : LPPM Universitas Jambi

Downy mildew disease in soybeans is caused by the obligate fungus Peronospora manshurica. The existence of this fungus is still limited in Indonesia. This study aimed to determine the viability of the fungus oospore P. manshurica on seeds carried on imported soybeans from Malaysia. Detection of oospores in soybean seeds was carried out by two methods: 1) Detection of soybean seeds without scale symptoms was carried out by washing or washing test techniques, and 2) Detection of soybean seeds with crust symptoms was carried out by direct examination. Oospora of P. manshurica obtained was tested for viability at the Mycology Laboratory of the Class I Agricultural Quarantine Center Jambi. Morphology observations included Oospora size, Oospora color, Oospora shape, and hyphae shape using a multi-media compound microscope (Olympus BX 51 and Olympus DP 20 camera). Oospores were observed in 10 drops of 10 l each of the precipitate suspension of each test sample. The results showed that the fungus P. manshurica on imported soybeans from Malaysia still had potential as an inoculum causing Downy mildew in soybean plants with a viability level of 3.35 - 9.93%. Morphology of Oospora P. manshurica were, diameter of 24 - 38Âµm, smooth and spherical shape with an irregular surface, hyaline to light brown in color. Hyphae were thick and thin-walled with varying densities. Viable oospores were marked with a reddish-orange color.

Effect of Application of Endophytic Bacteria on the Development of Bacterial Leaf Blight Disease, Growth, and Production of Rice Plants Marwan, Husda; Hayati, Islah; Defitri, Yuza
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol. 8 No. 1 (2023): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v8i1.10832

Bacterial leaf blight can be found in various stages of rice plant growth, so this disease can affect the growth and production of rice plants. This research aims to determine the effect of applying an endophytic bacterial formula to rice seedlings on the development of HDB disease, growth, and production of rice plants. This study used 4 isolates of endophytic bacteria (isolates BE-KH1, BE-M2, BE-M3, and BE-S5) which were formulated in coconut water waste + peptone. The results of the study showed that the application of the endophytic bacterial formula to rice seedlings was able to reduce the severity of bacterial leaf blight by 54,5 – 63,2% and had an effect on growth, full grain weight, and rice grain weight in rice plants inoculated with Xanthomonas oryzae pv. oryzae bacteria.

Kemampuan Bakteri Endofit dalam Mengendalikan Penyakit Rebah Kecambah dan Layu Sclerotium (Sclerotium rolfsii) pada Kedelai: Bahasa Inggris Marwan, Husda; Mulyati, Sri; Wilia, Weni
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 1 No. 2 (2017): Desember 2017
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.52-61.2017

Endophytic bacteria have potency as candidates of biological control agents to plant disease, because the bacteria as reported to be associated with plant resistance to pathogens. The study aimed to determine the ability of endophytic bacteria to inhibit the growth of Sclerotium rolfsii in vitro, and suppress damping off disease incedence and Sclerotium wilt disease severity on soybean. The ability of endophytic bacteria to inhibit S. rolfsii was carried out on 44 isolates that isolated from soybean, rice and banana. The ability of endophytic bacteria to control damping off disease was carried out on 13 isolates were selected in vitro (BE-CW1, BE-M1, BE-M2, BE-M3, BE-M4, BE-S1, BE-S6, BE-S13, BE-S14, BE -BRRG2, BE-KH1), and also fungicides and two controls (healthy plant and diseased plant). The ability of endophytic bacteria to control Sclerotium wilt was carried out on 6 isolates which showed pressure on damping off disease (BE-M1, BE-M2, BE-M3, BE-M4, BE-CW1, BE-KH2) and 2 controls (healthy plants and diseased plants).The results showed that the thirteen isolates of endophytic bacteria could inhibit mycelial growth and germination S. rolfsii. Soybean seed treatment revealed that dipping the seed in endophytic bacterial isolates suppressed damping off disease incedence with a range of 37.4 to 49.9% and Sclerotium wilt disease severity of 20.1 to 85 % , as well as reduced the mortality of soybean by 26.3 to 84.4 % . BE-KH2 isolate was able to suppress Sclerotium wilt in soybean by 85% and reduce the mortality by 67.5%.

Pengaruh Aplikasi Agensia Hayati pada Bibit Padi terhadap Perkembangan Penyakit Hawar Daun Bakteri dan Blas serta Pertumbuhan Tanaman Padi: English Marwan, Husda; Mapegau, Mapegau; Mulyanti, Sri
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 2 (2018): December 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.2.97-103.2018

Bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae (Xoo), and the blast caused by Pyricularia oryzae can decrease rice production about 60% and 70%. The study aimed to determine the effect of rhizobacterial and endophytic bacterial isolates on BLB, blast, and the growth of rice plants, and also the characteristics of those biological agents. The isolates used were BR-IP3 dan BR-BC1 (bacterial isolates), BE-KR3 dan BE-KT2 (endophytic bacterial isolates). The rice varieties used Indragiri, Ciherang, and Inpara 3. The results showed that the application of various biological agents on rice seed of Indragiri, Ciherang, and Inpara 3 varieties were able to reduce the HDB of 80-100% and the blast of 31.8-88.6%. The isolates of BR-IP3 and BE-KR3 could dissolve phosphate and fix nitrogen, whereas the isolates of BR-BC1 and BE-KT2 were only able to dissolve phosphate.

POTENSI Bacillus spp. DARI RIZOSFER TANAMAN AKASIA SEBAGAI AGENS HAYATI Fusarium sp. DAN PEMACU PERTUMBUHAN TANAMAN Anderson, Radika Sabrina; Marwan, Husda; Mulyati, Sri
Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian Vol. 8 No. 2 (2025): Jurnal Agroecotania : Publikasi Nasional Ilmu Budidaya Pertanian
Publisher : Jambi University, Fakultas Pertanian, Program Studi Agroekoteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/agroecotania.v8i2.50980

ABSTRACT Acacia crassicarpa is a promising species for the wood processing industry, with productivity reaching 110.2 m³/ha at four years of age. However, seedling production in nurseries often faces disease problems, particularly infections by Fusarium sp., which can lead to significant economic losses. Biological control using antagonistic microbes, such as Bacillus spp., offers an effective and environmentally friendly alternative. This study aimed to explore the potential of Bacillus spp. isolated from the rhizosphere of A. crassicarpa as a biocontrol agent against Fusarium sp. and as a plant growth promoter. A total of 32 Bacillus spp. isolates were obtained, with 21 isolates exhibiting antagonistic activity against Fusarium sp. in vitro. The BAM-18 isolate showed the highest inhibition rate at 43.00%. Several isolates, including BAM-18 and BAM-21, also demonstrated chitinolytic activity, nitrogen fixation, phosphate solubilization, and potassium solubilization, indicating their potential to support plant growth. Keywords : Acacia crassicarpa, Bacillus spp., Rhizosphere, Biological control.

Co-Authors Anderson, Radika Sabrina Asniwita Asniwita Islah Hayati Mapegau Mapegau Mapegau Mapegau, Mapegau Poppy Oktania Riris Butarbutar Sri Mulyanti Sri Mulyati Sri Mulyati Susanti, Ani Ardiana Weni Wilia Yuza Defitri, Yuza

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