PJB-2010-196
BIOLOGICAL SCREENING OF IMPATIENS BICOLOR ROYLE
MUHAMMAD NISAR1*, MUGHAL QAYUM2*, MUHAMMAD RAZA SHAH3, HAMID LATIF SIDDIQUI4, WAQAR AHMAD KALEEM2 AND M. ZIA-UL-HAQ5
Abstract
Crude methanolic extracts of Impatiens bicolor Royle as well as its different fraction namely n-hexane (A), dichloromethane (B), ethyl acetate (C), n-butanol (D) and aqueous (E) were tested In vitro for their insecticidal, cytotoxic and phytotoxic activities. Only n-hexane (A) fraction showed moderate insecticidal activity while ethyl acetate (C), n-butanol (D) and aqueous (E) fractions indicated low insecticidal activity. All fractions except n-butanol (D) indicated significant phytotoxicity. Cytotoxic results observed were also very low as compared to standard used and only dichloromethane (B) fraction showed cytotoxicity at higher dose while all other fractions as well as crude extract exhibited moderate to low activity in killing the tested brine shrimps.
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