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Various pH Media Influence Production of Pseudomonas fluorescens P20 Raw Secondary Metabolites for Controlling Damping-off (Pythium sp.) in Cucumber Seedlings

AGRIVITA, Journal of Agricultural Science · Vol. 44 No. 1 (2022) · hlm. 178–186

DOI
10.17503/agrivita.v44i1.2730
ISSN
2477-8516, 0126-0537
Terbit
2022-01-31
Penerbit
Faculty of Agriculture University of Brawijaya in collaboration with PERAGI
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc/4.0

Abstrak

This research aims to determine the best pH media for the production of Pseudomonas fluorescens P20 raw secondary metabolites, its effect on controlling damping-off, and on cucumber seedling growth. In vitro test uses completely randomized design with four replicates and seven treatments consisted of pH 5.0; 5.5; 6.0; 6.5; 7.0; 7.5; and 8.0. In planta test uses a randomized block design with three replicates and ten treatments consisting of control, mancozeb 80%, and raw secondary metabolites with pH 7.0 and 7.5, and 4 concentration levels, i.e., 5, 10, 15, and 20%. Variables observe population density, inhibition ability, protease and chitinase qualitatively, germination ability, incubation period, disease incidence, the area under disease progress curve (AUDPC), crop height, number of leaves, root length, and crop fresh weight. The result shows that the best pH for the production of raw secondary metabolites is 7.0, indicated by population density as 5.68 × 1024 cfu/ml, inhibition ability as 50.8%, and the best protease and chitinase qualitatively. Application of the secondary metabolites on pH 7.0 could suppress disease intensity, incubation period, and AUDPC as 66.67, 77%, and 0%-day, respectively, and increase crop height, the number of leaves, root length, and crop fresh weight as 57.65, 37.19, 63, and 74%, respectively.

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  • Jenderal Soedirman University
  • Politeknik Pembangunan Pertanian Malang
  • Indonesian Institute of Sciences
  • Universitas Swadaya Gunung Jati
  • Diponegoro University
  • Afiliasi tidak diketahui
  • Organisasi berbeda
  • Organisasi sama
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Rekan penulisOrganisasiArtikel bersama
Ruth Feti RahayuniatiJenderal Soedirman University12
Murti Wisnu Ragil SastyawanJenderal Soedirman University11
Nur PrihatiningsihJenderal Soedirman University5
Ni Wayan Anik LeanaJenderal Soedirman University5
Ratna Stia DewiJenderal Soedirman University5
Dini SundariJenderal Soedirman University4
Deviana PrimayuriJenderal Soedirman University3
Lintang Yunita SariJenderal Soedirman University3
Etik Wukir TiniAfiliasi tidak diketahui2
Hening KurniasihJenderal Soedirman University2
Suprayogi SuprayogiJenderal Soedirman University2
Dede Herdiyana IkbalJenderal Soedirman University2
Tamad TamadJenderal Soedirman University2
Khoeruriza KhoerurizaAfiliasi tidak diketahui2
WitjaksonoAfiliasi tidak diketahui2
Fajarudin AhmadIndonesian Institute of Sciences2
Agus SuyantoJenderal Soedirman University2
Noviana PrastyaniJenderal Soedirman University2
Darini Sri UtamiJenderal Soedirman University2
Nina NurlianaDiponegoro University2
Roy AndreasJenderal Soedirman University1
Ernasiwi Astri OktaviliaAfiliasi tidak diketahui1
Amelia Putri HeryawatiJenderal Soedirman University1
Reksa Satria AdijanaJenderal Soedirman University1
Difa Sri MuthiaJenderal Soedirman University1
Daffa Naufal FaiqJenderal Soedirman University1
Eka OktavianiJenderal Soedirman University1
Purwanto PurwantoJenderal Soedirman University1
Fenty Chakimatul IsnaeniJenderal Soedirman University1
Dina IstiqomahJenderal Soedirman University1
Alya Nur AmilaJenderal Soedirman University1
Ahadiyat Yugi RahayuJenderal Soedirman University1
Lisa NavitasariPoliteknik Pembangunan Pertanian Malang1
Rokhlani RokhlaniJenderal Soedirman University1
Subandi NurUniversitas Swadaya Gunung Jati1

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Sumber metadata: OAI-PMH (metadata jurnal) https://agrivita.ub.ac.id/index.php/agrivita/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Various pH Media Influence Production of Pseudomonas fluorescens P20 Raw Secondary Metabolites for Controlling Damping-off (Pythium sp.) in Cucumber Seedlings</dc:title>
	<dc:creator>Soesanto, Loekas</dc:creator>
	<dc:creator>Latifah, Siti</dc:creator>
	<dc:creator>Manan, Abdul</dc:creator>
	<dc:creator>Mugiastuti, Endang</dc:creator>
	<dc:creator>Suharti, Woro Sri</dc:creator>
	<dc:subject xml:lang="en-US"></dc:subject>
	<dc:subject xml:lang="en-US">Cucumber seedlings; Damping-off; pH media; Pseudomonas fluorescens; Raw secondary metabolites</dc:subject>
	<dc:description xml:lang="en-US"> This research aims to determine the best pH media for the production of Pseudomonas fluorescens P20 raw secondary metabolites, its effect on controlling damping-off, and on cucumber seedling growth. In vitro test uses completely randomized design with four replicates and seven treatments consisted of pH 5.0; 5.5; 6.0; 6.5; 7.0; 7.5; and 8.0. In planta test uses a randomized block design with three replicates and ten treatments consisting of control, mancozeb 80%, and raw secondary metabolites with pH 7.0 and 7.5, and 4 concentration levels, i.e., 5, 10, 15, and 20%. Variables observe population density, inhibition ability, protease and chitinase qualitatively, germination ability, incubation period, disease incidence, the area under disease progress curve (AUDPC), crop height, number of leaves, root length, and crop fresh weight. The result shows that the best pH for the production of raw secondary metabolites is 7.0, indicated by population density as 5.68 × 1024 cfu/ml, inhibition ability as 50.8%, and the best protease and chitinase qualitatively. Application of the secondary metabolites on pH 7.0 could suppress disease intensity, incubation period, and AUDPC as 66.67, 77%, and 0%-day, respectively, and increase crop height, the number of leaves, root length, and crop fresh weight as 57.65, 37.19, 63, and 74%, respectively.</dc:description>
	<dc:publisher xml:lang="en-US">Faculty of Agriculture University of Brawijaya in collaboration with PERAGI</dc:publisher>
	<dc:contributor xml:lang="en-US"></dc:contributor>
	<dc:date>2022-01-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://agrivita.ub.ac.id/index.php/agrivita/article/view/2730</dc:identifier>
	<dc:identifier>10.17503/agrivita.v44i1.2730</dc:identifier>
	<dc:source xml:lang="en-US">AGRIVITA Journal of Agricultural Science; Vol 44, No 1 (2022); 178-186</dc:source>
	<dc:source>2477-8516</dc:source>
	<dc:source>0126-0537</dc:source>
	<dc:source>10.17503/agrivita.v44i1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://agrivita.ub.ac.id/index.php/agrivita/article/view/2730/1470</dc:relation>
	<dc:relation>https://agrivita.ub.ac.id/index.php/agrivita/article/downloadSuppFile/2730/1917</dc:relation>
	<dc:relation>https://agrivita.ub.ac.id/index.php/agrivita/article/downloadSuppFile/2730/1919</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2022 The Authors (s)</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc/4.0</dc:rights>
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