Abstract Detail



Crops and Wild Relatives

Ilyas, Noshin [1], Anwar, Tauseef [2].

Bio-herbicidal potential of Lantana camara l. on the growth and physiological parameters of Triticum aestivum l.  and associated weeds.

     Weed infestation is accounting for 50% lowering the yield of Wheat (staple food) in Pakistan. The present study was conducted to screen Lantana camara for its allelopathic activity against major weeds (Phalaris minor, Avena fatua, Chenopodium album, Euphorbia helioscopia, Rumex dentatus) of wheat crop. Preliminary screening of selected species was carried out in laboratory on filter paper and soil by extraction method (aqueous, hexane and methanolic). Plant sandwich method was carried out on agar, soil and filter paper. L. camara leaf methanol extract was shown to be most inhibitory to test weeds while wheat crop was unaffected. Activity guided isolation of three fractions from L. camara leaf extract obtained by combiflash showed fraction 2 most active.  Assessment of physiological effects on weed species by fraction 2 indicated suppressed chlorophyll, superoxide dismutase and peroxidase and protein contents in all weeds as compared to control. The GC-MS and NMR (Proton and Carbon) analysis of combiflash fraction 2 of L. camara showed four active compounds (Methyl linoleate, Methyl palmitate, Methyl stearate and Methyl oleate). Allelopathic effect of these four active compounds is being reported for the first time.


1 - PMAS Arid Agriculture University Rawalpinidi, Department of Botany, Rawalpinidi, Punjab, 46300, PAK
2 - PMAS Arid Agriculture University Rawalpinidi, Department of Botany, Rawalpinidi, Punjab, 46300

Keywords:
allelopathy
bioherbicides.

Presentation Type: Oral Paper
Number:
Abstract ID:80
Candidate for Awards:None


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