Diameter of inhibition zones (mm) around paper disc loaded with crude methanolic extract and fractions of Eichhornia crassipes against tested microalgae after 72–168h.

Abbreviation: Dictyo. = Dictyochloropsis splendid; Nos. = Nostoc piscinale; Chl. = Chlorella vulgaris; Spir. = Spirulina platensis.*Each value is presented as mean of triplicate treatments, LSD: Least different significantly at p≤0.01 according to Duncan's multiple range test. Data are expressed as mean ± S.D.