eprintid: 6253 rev_number: 8 eprint_status: archive userid: 19 dir: disk0/00/00/62/53 datestamp: 2012-12-03 10:18:42 lastmod: 2014-02-07 05:32:00 status_changed: 2012-12-03 10:18:42 type: article metadata_visibility: show contact_email: Library-ICRISAT@CGIAR.ORG creators_name: Girijashankar, V creators_name: Thayumanavan, B icrisatcreators_name: Girijashankar, V affiliation: ICRISAT(Patancheru) affiliation: Tamil Nadu Agricultural University(Coimhatore) country: India title: Evaluation of lawsonia inermis leaf extracts for their in vitro fungitoxicity against certain soilborne pathogens ispublished: pub subjects: s2.11 full_text_status: restricted keywords: Lawsonia inermis, Rhizoctonia solani, Pythium aphanidermatum, Macrophomina phaseolina, fungitoxicitye abstract: Screening of Lawsonia inermis leaf extracts for their fungitoxicity was carried out in vitro against some selected soil-borne phytopathogens, Rhizoctonia solani. Pythium aphanidermatum and Macrophomina phaseolina. Of the three solvent extracts studied, cold-water extract at 10% concentration showed a maximum of 70% inhibition of the mycelial growth of R. solani. Methanol extract at 2.5% concentration completely inhibited P. aphanidermatum while the same at 10% proved effective against M. phaseolina by 60% when compared to cold water and petroleum ether extracts. Petroleum ether extract was ineffective against R. solani and M. phaseolina. The amount of total phenols was 4.5 mg/g of fresh leaf tissue. Reverse phase high performance liquid chromatographic analysis of the cold-water extracts revealed the presence of four different absorption peaks of which only two compounds could be identified i.e. tannic acid and catechol date: 2005 date_type: published publication: Indian Journal of Plant Protection volume: 33 number: 1 publisher: Plant Protection Association of India pagerange: 111-114 refereed: TRUE issn: 0253-4355 official_url: http://indianjournals.com/ijor.aspx?target=ijor:IJPP1&volume=33&issue=1&article=025 related_url_url: http://scholar.google.co.in/scholar?as_q=Evaluation+of+lawsonia+inermis+leaf+extracts+for+their+in+vitro+fungitoxicity+against+certain+soilborne+pathogens&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&btnG=&hl=en&as_sdt= citation: Girijashankar, V and Thayumanavan, B (2005) Evaluation of lawsonia inermis leaf extracts for their in vitro fungitoxicity against certain soilborne pathogens. Indian Journal of Plant Protection, 33 (1). pp. 111-114. ISSN 0253-4355 document_url: http://oar.icrisat.org/6253/1/IndianJournalofPlantProtection_33_1_111-114_2005.pdf