Allelopathy Effect of Aqueous Extract of Clerodendrum Viscosum, Ageratum Conyzoides and Parthenium Hysterophorus on the Seed Germination and Seedling Vigour of Chickpea Seeds (Cicer Arietinum L.) in Vitro. JANS 2013, 5 (1), 37-40. https://doi.org/10.31018/jans.v5i1.278.