Identification and comparison of chemical profiling of some crops and weeds at seedlings stage in the fields of Balurghat block, Dakshin Dinajpur, West Bengal

Seedlings of eight weeds and seven crops are described and quantitatively analyzed with six chemical parameters viz. leaf extract pH, ascorbic acid contents, total chlorophyll content, protein content, total phenolic content and peroxidase activity. Morphological traits of seedlings of both crops and weeds are used for the preparation of artificial keys separately for their proper identification. Of many chemical parameters, only these six parameters may address towards better adaptation of weeds and crops to the stressful environment. However, very little differences have been resulted in the above chemical parameters under numerical analysis through ANOVA and Principal component analysis.