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UJI PENDAHULUAN PENGARUH EKSTRAK AIR DARI TUMBUHAN TERHADAP KETERJADIAN KARAT PADA CAKRAM DAUN KOPI DI LABORATORIUM

JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA · Vol. 4 No. 1 (2014) · pp. 47–51

DOI
10.23960/j.hptt.1447-51
ISSN
2461-0399, 1411-7525
Published
2014-08-15
Publisher
Universitas Lampung
Language
eng
License
creativecommons.org/licenses/by-nc/4.0

Abstract

Preliminary test on the effect of water extract from plants on rust incidence on coffee leaf disks at the latroratory. The objective of this study was to determine the influence of several water extract from plants on rust incidence on coffee leaf disk a laboratory condition. The study was done from March to June 2003. Treatments were arranged in a randomized complete block design with four replications, One experimental unit consisted of eight leaf disks with 2 cm in diameter. To prepare water extract, 1 00 g of plant or its part was homogenized with 100 ml sterilized distilled water.  After being passed through four layers of sterilized cheesecloth, the mixture was defined as the aliquot. Ten percent of the aliquot was sparyed on leaf disks before inoculation. As inoculum, uredospores developed on leaves under field condition were taken with sterilized scalpel and placed in sterilized distilled water and counted with hemacyometer to get suspension (4x105 uredospores per ml) spores per ml). Data on disease incidence were analyzed with ANOVA and Duncan test. The results showed that disease incidence was significantly reduced by water extract processed from the leaves of Piper betle, Azadirachta indica, and Eugeni aromatica, the rhizomes of Zingiber afficinale and Curcumq longa, stem of Cymbopogon citratus, Allium ascalonium, A.sativa, and copper fungicide. Disease was not significantly reduced in leaf disks sprayed with extract prepares from the leaves of Piper retrofractum, P. nigrum,  the rhizomes of Imperata cylindrica and Alpina galanga, A. cepa,Ageratum comysoides, and Elephantopus scaber.

Keywords

Collaboration network of the authors

28 authors · 84 co-authorship links

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • Institut Teknologi Sepuluh Nopember
  • Universitas Gadjah Mada
  • Universitas Halu Oleo
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Tri MaryonoAffiliation unknown6
Joko PrasetyoInstitut Teknologi Sepuluh Nopember3
Nur Baitullah JuniarAffiliation unknown2
Sherin Angeli HarlimAffiliation unknown1
Sudi PramonoAffiliation unknown1
Setyo WidagdoAffiliation unknown1
Jaka WidadaUniversitas Gadjah Mada1
Irfan Dwidya PrijambadaAffiliation unknown1
Donny WidiantoAffiliation unknown1
Siti KabirunAffiliation unknown1
Sri WedhastriAffiliation unknown1
Dinar Mindrati FardhaniAffiliation unknown1
Aris NurhidayatAffiliation unknown1
Yusnita YusnitaUniversitas Halu Oleo1
Suskandini Ratih DirmawatiAffiliation unknown1
Ivayani IvayaniAffiliation unknown1
Lestari WibowoAffiliation unknown1
, SugiatnoAffiliation unknown1
, IvayaniAffiliation unknown1
Hidayat PujisiswantoAffiliation unknown1
Fembriarti Erry PrasmatiwiAffiliation unknown1
Herry SusantoAffiliation unknown1
Hasriadi Mat AkinAffiliation unknown1
Hamim SudarsonoAffiliation unknown1
Elisa Amelia PramestiAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) http://jhpttropika.fp.unila.ac.id/index.php/jhpttropika/oai, first harvested 8 Nov 2026, last seen 8 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">UJI PENDAHULUAN PENGARUH EKSTRAK AIR DARI TUMBUHAN TERHADAP KETERJADIAN KARAT PADA CAKRAM DAUN KOPI DI LABORATORIUM</dc:title>
	<dc:creator xml:lang="en">Ginting, Cipta</dc:creator>
	<dc:creator xml:lang="en">Mujim, Subdi</dc:creator>
	<dc:creator xml:lang="en">Evizal, Rusdi</dc:creator>
	<dc:subject xml:lang="en">Kopi</dc:subject>
	<dc:subject xml:lang="en">penyakit karat daun</dc:subject>
	<dc:subject xml:lang="en">Hemileia vastatrix</dc:subject>
	<dc:subject xml:lang="en">fungisida nabati</dc:subject>
	<dc:description xml:lang="en">Preliminary test on the effect of water extract from plants on rust incidence on coffee leaf disks at the latroratory. The objective of this study was to determine the influence of several water extract from plants on rust incidence on coffee leaf disk a laboratory condition. The study was done from March to June 2003. Treatments were arranged in a randomized complete block design with four replications, One experimental unit consisted of eight leaf disks with 2 cm in diameter. To prepare water extract, 1 00 g of plant or its part was homogenized with 100 ml sterilized distilled water.  After being passed through four layers of sterilized cheesecloth, the mixture was defined as the aliquot. Ten percent of the aliquot was sparyed on leaf disks before inoculation. As inoculum, uredospores developed on leaves under field condition were taken with sterilized scalpel and placed in sterilized distilled water and counted with hemacyometer to get suspension (4x105 uredospores per ml) spores per ml). Data on disease incidence were analyzed with ANOVA and Duncan test. The results showed that disease incidence was significantly reduced by water extract processed from the leaves of Piper betle, Azadirachta indica, and Eugeni aromatica, the rhizomes of Zingiber afficinale and Curcumq longa, stem of Cymbopogon citratus, Allium ascalonium, A.sativa, and copper fungicide. Disease was not significantly reduced in leaf disks sprayed with extract prepares from the leaves of Piper retrofractum, P. nigrum,  the rhizomes of Imperata cylindrica and Alpina galanga, A. cepa,Ageratum comysoides, and Elephantopus scaber.</dc:description>
	<dc:publisher xml:lang="en">Universitas Lampung</dc:publisher>
	<dc:date>2014-08-15</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://jhpttropika.fp.unila.ac.id/index.php/jhpttropika/article/view/382</dc:identifier>
	<dc:identifier>10.23960/j.hptt.1447-51</dc:identifier>
	<dc:source xml:lang="en">Jurnal Hama dan Penyakit Tumbuhan Tropika; Vol. 4 No. 1 (2004): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA; 47-51</dc:source>
	<dc:source>2461-0399</dc:source>
	<dc:source>1411-7525</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://jhpttropika.fp.unila.ac.id/index.php/jhpttropika/article/view/382/393</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2012 Jurnal Hama dan Penyakit Tumbuhan Tropika</dc:rights>
	<dc:rights xml:lang="en">https://creativecommons.org/licenses/by-nc/4.0</dc:rights>
</oai_dc:dc>