Published Paper Details:

Celosia argentia L. is dominant weed reported in crop fields of Islampur of Sangli district of Maharashtra, India. It has been scrutinized for its allelopathic potentiality against guar (Cyamopsis tetragonoloba L. Taub.). The laboratory experiments were conducted to assess activity of ?-amylase during seed germination of guar after treating different concentrations (5, 20, 40, 60 and 80%) of stem, leaves and inflorescence (flower) aqueous extracts separately. There is positively correlation between the aqueous leachate and activity of ?-amylase. The activity increased in germinating seeds of guar after treatment of aqueous leachates of all plant parts. The treatment of 40 to 80% inflorescence, leaf and root aqueous extract recorded doubled ?-amylase activity as compared to control in germinating seeds. The activity of ?-amylase was more pronounced in leaf leachate treated seedlings as compared to other leachate treatments. It indicated that allelochemicals are more in leaf than other plant parts. This study indicates that some allelochemicals are present in aqueous extract of C. argentea and regulated the activity of enzyme ?-amylase.