eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-05-05 8 1 265 270 9343 article Nupur 1 M. P. Trivedi 1 Department of Botany, Patna Science College, Patna University, Patna - 800 005 (India). Allelopathic effects of roots, stems and leaves extract of Parthenium hysterophorus on the seed germination of Cassia tora and Croton bonplandianum and vice-versa have been worked out. The extracts of Cassia and Croton significantly suppressed the germination of P. hysterophorus. Increase in extract concentration promoted the inhibitory potential. https://www.biotech-asia.org/vol8no1/allelopathic-interaction-among-parthenium-hysterophorus-linn-cassia-tora-linn-and-croton-bonplandianum-baill/ Allelopathy; Interaction; Parthenium hysterophorus; Cassia tora; Croton bonplandianum