Allelopathic Influence of Neem (<I>Azadirachta indica</I> A. Juss) on Wheat and Barley

Abstract

Bioassay study was done to characterise the allelopathic effect of different concentrations (5,10,15%) of Neem leafleachate and extract on germination and early seedling growth ofrabi crops namely wheat and barley. The germination and early seedling growth of both test crops were reduced significantly over control at all the concentrations of leachate and extract. The inhibitory effect of leachate and extract was found more on barley in comparison of wheat and concentration dependent on both test crops.