Ruth Feti Rahayuniati

• Doctor of Philosophy
• Lecturer at Jenderal Soedirman University

Prihatiningsih N, Rahayuniati RF, Djatmiko HA, Lestari P, Wulansari NK, Widnyana IK, Sutanto KD. 2024. Endophytic bacterial isolate diversity in suboptimal field rice and their potential in sheath blight control. Biodiversitas 25: 3359-3367. Rice root endophytic bacteria from suboptimal fields rice are beneficial for controlling plant pathogens. Th...

Potato (Solanum tuberosum L.) seed production using the aeroponic system has been widely implemented in Indonesia. However, aeroponic systems in tropical areas such as Indonesia faced obstacles in the form of high wilt attacks caused by the bacteria Ralstonia solanacearum. This research aimed to control R. solanacearum wilt disease in an aeroponic...

The research aimed to determine the effect of single and combined applications of Bio P60 and Bio T10 in suppressing stem base rot and its effect on the growth and production of hydroponic melon. This research was conducted at Flos Hydroponic Organic at Bansari Village, Bansari District, Temanggung Regency from February to June 2023. Randomized Blo...

The research aimed to determine the effect of single and combined applications of Bio P60 and Bio T10 in suppressing stem base rot and its effect on the growth and production of hydroponic melon. This research was conducted at Flos Hydroponic Organic at Bansari Village, Bansari District, Temanggung Regency from February to June 2023. Randomized Blo...

Candlenut seed quality is an important aspect of plantation commodities used to export from Indonesia. But, this commodities have many problems with export processing, such as infection and destruction by pest microorganisms, especially caused by quarantined pest microorganisms. To enhance germination, beneficial microbes that produce secondary met...

Background: Shallot cultivation in the rainy season faces the constraints of more severe plant disease problems. Utilization of mixed biopestisda Trichoderma harzianum, Bacillus sp. B8 and Pseudomonas flourescens P8 as well as proper cultivation techniques have not been adopted by farmers. It is necessary to assist farmers in implementing the techn...

Bunchy top is one of the major diseases on bananas that caused economic losses. This study aimed to determine changes in protein content, the concentration of phenolic compounds, the amount of chlorophyll, and sugar content in several Banana bunchy top virus (BBTV)-infected banana cultivars. The research involved the artificial inoculation, extract...

Desa Baseh, Kecamatan Kedungbanteng, Kabupaten Banyumas terletak di lereng Gunung Slamet di Jawa Tengah memiliki komoditas unggulan yaitu kopi. Dengan ketinggian sekitar 700 mdpl, masyarakat Desa Baseh mayoritas membudidayakan kopi robusta. Kopi robusta (Coffea canephora) memiliki rasa yang lebih kuat, lebih pahit, dan memiliki kandungan kafein yan...

Bacterial wilt is one of the important diseases of tomatoes caused by Ralstonia solanacearum (Smith 1896) Yabuuchi et al. 1996. Its control can be achieved by applying secondary metabolites of Pseudomonas fluorescens Migula 1895 P60 in granular form. The study aimed to determine the shelf life of the secondary metabolites P. fluorescens P60' in gra...

The banana bunchy top is one of the important diseases on bananas, presumably coupled with the influence of soil properties, despite no fixed information regarding their relationship. Therefore, this study aims to map the soil nutrient contents at some banana plantation center and determine the effect of nutrient availability on the incidence of ba...

This study was aimed to confirms the Banana Bunchy Top Virus (BBTV) infection of ten banana accessions from Indonesia through PCR assay using primer of BBTV coat protein (CP) gene, also the sequences characteristics and phylogeny. Preliminary morphological results showed five acessions were positively infected with slight to severe intensity sympto...

Abstract Importance of the work: Bunchy top is a damaging disease of bananas. Considering the scarcity of resistant plants, it is vital to conduct screening for the resistant cultivars Objectives: To determine symptom expression and screen some banana cultivars for resistance. Materials and Methods: A survey was undertaken to collect some banana c...

Entrepreneurship is an important mechanism that facilitates the transfer of knowledge and skills that ultimately results in economic growth. Entrepreneurship is needed by strawberry farmers in Serang Village to face future challenges. This research aims to; 1) identify the internal and external entrepreneurial characteristics of strawberry farmers,...

ABSTRAKPeningkatan kualitas kecambah dapat dibantu dengan seed priming, seperti perendaman dalam larutan pupuk organik cair. Penelitian bertujuan untuk mengetahui: pengaruh berbagai bahan dan konsentrasi seed priming terhadap perkecambahan biji aren (Arenga pinnata (Wurmb.) Merr.), pengaruh waktu perendaman terhadap perkecambahan biji aren, dan int...

Banana bunchy top is one of the most damaging diseases in banana cultivation. However, the distribution and molecular diversity of banana bunchy top virus (BBTV) as well as its alternative hosts in Indonesia have not been reported since 1998. A total of 257 banana leaf samples were collected from the islands of Sumatra, Java, Kalimantan, Sulawesi,...

Penelitian bertujuan mengetahui kemampuan empat isolat Trichoderma harzianum dalam mengomposkan limbah sayur, isolat T. harzianum terbaik pada pengomposan limbah sayur, dan isolat T. harzianum terhadap pertumbuhan tanaman mentimun in planta. Penelitian dilaksanakan di rumah kaca dan Laboratorium Perlindungan Tanaman, Fakultas Pertanian, Universitas...

Rahayuniati RF, Hartono S, Somowiyarjo S, Subandiyah S, Thomas JE. 2021. Characterization of banana bunchy top virus on Sumatra (Indonesia) wild banana. Biodiversitas 22: 1243-1249. Banana bunchy top virus (BBTV) has been a major constrain on banana production worldwide. This virus infection is mostly found in banana cultivation. The study aimed to...

Penelitian bertujuan untuk: 1) mengetahui konsentrasi tepung jagung yang tepat untuk medium cair Trichoderma harzianum T10, 2) mengetahui pengaruh aplikasi T. harzianum T10 dalam berbagai konsentrasi medium cair tepung jagung terhadap penekanan penyakit rebah semai dan pertumbuhan bibit mentimun. Penelitian dilaksanakan di Laboratorium Perlindungan...

Anthracnose on red chili pepper is one of the highly damaging diseases that difficult to control by pesticides. This study aimed to determine the effect of raw secondary metabolites isolated from two isolates of Trichoderma harzianum towards anthracnose as well as the growth and yield of red chili pepper plants in the field. The research used a ran...

Fusarium oxysporum merupakan penyebab penyakit layu fusarium yang dapat menurunkan produksi tomat. Pengendalian hayati dengan menggunakan bakteri antagonis seperti Bacillus sp. merupakan alternatif pengendalian yang potensial dan ramah lingkungan. Penelitian bertujuan untuk mengetahui kemampuan Bacillus sp. dalam mengendalikan penyakit layu fusariu...

Banana bunchy top disease (BBT) is one of the most economically serious viral diseases of banana caused by banana bunchy top virus (BBTV: Nanoviridae: Babuvirus). BBTV is a circular, ssDNA virus which is suitable in the phloem tissue and currently only being transmitted by the banana aphid (Pentalonia nigronervosa) in a persistent, non-propagative,...

This research aimed to study the compatibility of some Trichoderma spp. isolates on some synthetic chemical pesticides carried out at the Laboratory of Plant Protection, Faculty of Agriculture, Jenderal Soedirman University from April up to July 2014. Trichoderma isolates were derived from rhizosphere exploration on ginger, banana, pineapple and sh...

Increment of upland rice production in Indonesia faces many problems mainly from kresek caused by Xanthomonas oryzae pv. oryzae and blast caused by Pyricularia grisea. The use of Liquid Organic Fertilizer (LOF) and liquid smoke provides an alternative method to control the pathogen. This research aimed at knowing the potency of the leaf fertilizer...

Sari Viral diseases of chilli pepper are difficult to control, therefore the use of Pseudomonas fluorescens P60 should be evaluated. The aims of this research were to determine the influence of liquid formula of P. fluorescens P60 on virod disease and on growth and yield of chili pepper. Randomized block design (RBD) experiment was composed of 7 t...

Compatibility test of four Trichoderma spp. Isolates and in vitro inhibition ability on several plant pathogens. In vitro descriptive compatibility research was carried out to know the compatibility among Trichoderma spp. isolates and their inhibition ability toward several plant pathogens. Four Trichoderma spp. isolates used were ginger, shallot,...

A research aiming at knowing the potency of several animal broths as organic liquid formula of Pseudomonas fluorescens P60, soaking period of Sclerotium rolfsii sclerotia, and its application method on cucumber stem-end rot was done. Completely randomized design and randomized block design both arranged by factorial were used for in vitro and in pl...

A research conducted at the Laboratory of Microbiology, Faculty of Agriculture, Jenderal Soedirman University Purwokerto aimed at determining morphological and physiological features of Pseudomonas fluorescens P60. The morphology is characterized visually and microscopically by colony growth such as colony form, color, edge, and grams. The physiolo...

Banana wilt is one of the most destructive diseases on banana production worldwide, caused by Fusarium oxysporum f. sp. cubense (Foc). No effective control measure for Fusarium wilt has been found other than the use of resistant cultivars We report here studies on induced resisance of banana seedlings CV. Raja to Fusarium wilt with antagonistic bac...

The aim of this research was to know biochemical characteristic of Pseudomonas fluorescens P60 isolate. Descriptive method was used with analysis of IAA production, gelatin hydrolysis, starch hydrolysis, lypolysis activity, DNAse activity, chitinase, cellulose, protease activity, siderophore, and antibiotic. Result of the research indicated that bi...

The objective of this research was to studi ability of P. fluorescens P60 liquid formula on develoment of bacterial wilt and yield of potato. The in vivo experiment was carried out at potato land area located at Sirampog Subdistrict, Brebes Regency. Completely Randomized Block Design was used with four replicates. The treatment tested was control (...

The aims of this research were to know the best animal broth as carrier material for Pseudomonas fluorescens P60 formulation and the effect of the formulas on Ralstonia solanacearum of tomato. Completely randomized design arranged by factorial was used for in vitro test and randomized block design arranged by factorial was used for in planta one. T...

The aim of this research was to know the exact morphological characteristics of some antagonistic microbes. The research was carried out at the Laboratory of Microbiology, Faculty of Agriculture, Jenderal Soedirman University, Purwokerto. The morphological characteristic was done by observation of fungal colony growth on PDA and MEA media, on sever...

Soil-borne plant pathogens in potato land are one of important factors influencing plant growth, production and yield quality. This research was conducted using purposive sampling method to determine kinds and virulence of soil-borne pathogens at potato land in Purbalingga Regency consisted of Guning Malang location at Serang Village and Bambangan...

atogen tular-tanah di lahan kentang merupakan salah satu faktor penting yang berpengaruh terhadap pertumbuhan, produksi, dan kualitas hasil tanaman. Inventarisasi dan identifikasi patogen tular-tanah di lahan kentang dengan metode purposive sampling telah dilakukan di Kabupaten Purbalingga, yang meliputi Dusun Gunung Malang di Desa Serang dan Dusun...

Antagonistic mechanisms study of Pseudomonas fluorescens P60 on Fusarium oxysporum f.sp. lycopersici of tomato in vivo. This research aimed at knowing the effect of P. fluorescens P60 in controlling Fusarium wilt on tomato and its inhibition mechanisms. Randomized Block Design was used with four replicates and each consisted of 12 crops. The treatm...

A research aimed at 1) knowing kinds of the best organic liquid and 2) deciding the exact application method in controlling bacterial wilt on tomato. Result of the research showed that 1) Molasses + yeast ekstrak was the best formula for P. fluorescens P60 in controlling the disease with decreasing disease incidence and late pathogenic density and...

This research aimed at knowing the effect of antagonistic bacteria extract on Raja cultivar banana seedling, Fusarium wilt development, and banana growth. Completely Randomized Block Design was used with five treatments repeated six times. The treatments were without the extract and without Fusarium oxysporum f.sp. cubense, without the extract and...

A research aiming at knowing antagonistic microorganism biological diversity in potato lands at Purbalingga Regency was carrired out by descriptive method and stratified random sampling as sampling method. Soil sample was isolated and the main antagonistics were identified then in vitro test was done to know inhibition ability and its mechanisms. R...

This research aimed at studying potency of Pseudomonas fluorescens P60 in manures formula for controlling seedling tomato bacterial wilt caused by R. solanacearum. The in planta research was carried out at the screen house, Faculty of Agriculture, Jenderal Soedirman University. Tolerant tomato seedling was grown at medium treated with biopesticide...