Efficiency of allelopathy of sunflower (Helianthus annuus L.) on physiology of wheat (Triticum aestivum L.)

Abstract

Pot-grown seedlings of wheat cvs. Margalla 99 and Chakwall 97 were treated with water mixed with extracts of sunflower leaves, stems and roots at 20 days after the seedlings emerged. Data on physiology of wheat seedlings including protein, proline, sugars, DNA, peroxidase, superoxide dismutase and chlorophyll contents were recorded; all increased with allelochemicals treatments when compared with controls.