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All Journal Jurnal Fitopatologi Indonesia Agrikultura Cropsaver : Journal of Plant Protection Jurnal Perlindungan Tanaman Indonesia Jurnal Mikologi Indonesia Jurnal Entomologi Indonesia Soil REns 3BIO: Journal of Biological Science, Technology and Management
Sri Hartati
Fakultas Pertanian, Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Environmental Science Immunology & microbiology Medicine & Pharmacology Neuroscience

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Journal : Cropsaver : Journal of Plant Protection

 1 
Potency of Rhodotorula minuta as Plant Growth Promoter on Red Chili Plant Infected by Colletotrichum acutatum Sri Hartati; Linda Tarina; Endah Yulia; Luciana Djaya
CROPSAVER Vol 2, No 2 (2019)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (465.413 KB) | DOI: 10.24198/cropsaver.v2i2.22542

Abstract

Some yeast species were reported to have the ability to promote plant growth. Rhodotorula minuta is a yeast species that has the potency as biocontrol agent. This research was objected to evaluate the potency of R. minuta in promoting the growth of red chilli infected by Colletotrichum acutatum. The experiment was carried out at the Laboratory of Plant Protection Biotechnology and Green House of Ciparanje Experiment Station, Faculty of Agriculture, Universitas Padjadjaran. The experiment was arranged in the randomized completely block design with 9 treatments and 5 replications. The treatments were infestation of R. minuta and inoculation of C. acutatum on 5, 7, and 10 days after replanting, and a positive control with no R. minuta infestation but inoculated with the pathogen and a negative control without R. minuta infestation nor pathogen inoculation. Results of the experiment showed that the effectiveness of the treatments with R. minuta on the increase of the chilli plant height was 3.78-17.90%, leaf number was 4.09-15.19%, and dry weight of the biomass was 0.14-0.58%. This results indicated that treatments with R. minuta were able to promote the growth of chilli plants.
The Abilities of Bacteria and Yeast Isolated from Vermicompost Water Extract to Inhibit Alternaria solani in vitro and Early Blight Disease on Tomato Noor Istifadah; Retno Anjani Putri; Sri Hartati
CROPSAVER Vol 4, No 2 (2021)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v4i2.37374

Abstract

Early blight disease (Alternaria solani Sor) is one of limiting factors in tomato production. Bacteria and yeast are potential for biocontrol of plant diseases.  Sources to obtain biocontrol agens is water extract of organic matters. The objective of this study was to examine the abilities of bacteria and yeast isolated from vermicompost water extract in inhibiting the growth of A. solani in vitro and suppressing the pathogen infection in tomato fruits and leaves. Two types of vermicompost used in this study were cattle manure vermicompost and goat manure vermicompost. The isolation of bacteria and yeast from the vermicompost water extract resulted in 14 isolates, which were 10 isolates from cattle manure vermicompost and four isolates from goat manure vermicompost. Among the isolates, six isolates (three yeast and three bacterial isolates) inhibited the growth of A. solani in vitro by 42.8% – 79.1%. In tomato fruits, five isolates inhibited A. solani infection by 70.6% - 100.0%.  In tomato plants, four isolates suppressed early blight disease in tomato leaves by 56.2% - 83.5%. The isolate that showed consistent effects in vitro as well as in vivo was bacterial isolate KB 3. This isolate was potential as biocontrol agent of tomato diseases caused by A. solani.
Potency of Yeasts Isolated from Shallot Rhizosphere to Control Basal Rot (Fusarium oxysporum f.sp. cepae) Disease on Shallot Sri Hartati; Risma Yuniah Nur’haqi; Wahyu Daradjat Natawigena; Tarkus Suganda
CROPSAVER Vol 5, No 1 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i1.38099

Abstract

One of the major diseases of shallots is basal rot disease caused by Fusarium oxysporum f.sp. cepae (FOC). Biocontrol agents can be used as an environmentally friendly control method. Some yeasts isolated from the rhizosphere may have the potencies to control soilborne plant pathogen such as FOC. This study was objected to obtain yeast isolates from the rhizosphere of shallots that have the potencies to control basal rot. The first step was isolation of yeasts from the rhizosphere of shallots and isolation of FOC. The yeast isolates were then tested for their potencies in suppressing FOC in vitro and decreasing the basal rot disease on the shallot plants. There were ten yeast isolates obtained from the rhizosphere of shallot, in which seven isolates were non pathogenic to shallot plant. These seven isolates were further tested  for their potencies in controlling FOC and basal rot disease. The results showed that those isolates were able to inhibit the colony growth of FOC by 16,11% - 38,33% in the in vitro dual culture test, and 21,11% - 38,89% in the production of volatile compound test. The isolates also suppressed the basal rot disease incidences by 8,30% - 24,98%. Isolates Cm2 and Cm3 caused the highest disease suppression (24,98%).
Co-Authors Agus Dana Permana Agus Susanto Agus Susanto Bari, Ichsan Nurul Benito Heru Purwanto Ceppy Nasahi Desy Natalia Br. Saragih Dian Nurul Izzati Dwi Harya Yudistira Endah Yulia Fitri Widiantini Lilian Rizkie Linda Tarina Linda Tarina Linda Tarina Lindung Tri Puspasari Luciana Djaya Luciana Djaya M S Sinaga Martua Suhunan Sianipar Meity Suradji Sinaga Meity Suradji Sinaga Mustika Dewi Noor Istifadah Nugroho Susetya Putra Nurul Falah Khomaedy Octaviani . Putu Ghita Novilaressa Ramadhan Kamal Putra Retno Anjani Putri Reynaldi Yunior Rika Meliansyah Risma Yuniah Nur’haqi Rizky Fauzi Rizky Fauzi S H Hidayat S Wiyono Santa Monica Santika Sari Santika Sari Siska Rasiska SRI HENDRASTUTI HIDAYAT Sri Rosmala Dewi Suryo Wiyono Syifa Nabilah Subakti Putri Tarkus Suganda Tiara Febricyanti Putri Senjaya Timotius A. Sumbari Tohidin Tohidin Ummu Salamah Rustiani Vira Kusuma Dewi Wahyu Daradjat Natawigena Wahyu Daradjat Natawigena Wawan Kurniawan Yani Maharani Yongki Umam Sandi Yongki Umam Sandi Yudi Rismayadi Yulia, Endah Yulia