Allelochemicals are secondary metabolites products which emerge during various metabolic activities. However, these products are used to perform an important role in interactions of producers with receivers. The current study was conducted on the allelopathy of almond (Prunus amygdaloides) on wheat (Triticum aestivum) with respect of seed germination, seedling length and weight of seedling. The seed germination was stimulation in almond bark > almond fruit in respect to cold, hot conditions. The weight of seedling was also decrease in both conditions. The length of seedling were enhanced in fruit with compare to almond bark. The presence of allelochemicals such as terpenoid, tannin, flavonoid and saponin is present in bark and fruits while reducing sugar is present absent in fruit. The allopathic results showed that maximum inhibition was found in bark as compare to fruit. In the light of allelopathy phenomena the suppression of wheat plant growth due to the presence of allelochemicals.
 

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