title: Biological activity of seed aqueous extract of Nigella sativa (L.) on germination and seedling growth of Vigna radiata (L.).
abstract: Seeds aqueous extract of Nigella sativa were evaluated for their effect on germination and seedling growth of Vigna radiata. Two different methods were used to prepare the seed aqueous extract. The aqueous extracts prepared were found to affect germination percentage and seedling growth of V. radiata. The germination percentage and seedling growth of V. radiata decreased as the concentration of the seeds aqueous extracts of N. sativa increased. Severe toxicity was observed at high concentrations and moderate toxicity at low concentrations in comparison with water control. Seeds aqueous extract significantly inhibited root length more than shoot. The aqueous dried powdered extract soaked for 4 days with or without boiling had inhibitory effect on germination and seedling growth of V. radiata, but method 2 (with boiling) was the most effective one specially on root length.
authors.affiliation: Department of Applied Sciences, Higher College of Technology, P.O. Box 74, Postal Code 133, Al-Khuwair, Oman.
authors.lastname: Fawzia
authors.forename: M R
authors.initials: MR
authors.lastname: Al-Charchafchi
authors.forename: Hkoula
authors.initials: H
authors.lastname: Al-Shuhumi
authors.forename: Shamsa
authors.initials: S
authors.lastname: Al-Meselhy
authors.forename: Maya
authors.initials: M
authors.lastname: Al-Busadi
authors.forename: Haleema
authors.initials: H
authors.lastname: Al-Shuhumi
mesh_terms: D018525:Germination; D031881:Nigella sativa / Q000737:chemistry* / Q000196:embryology / Q000254:growth & development / Q000502:physiology; D010936:Plant Extracts / Q000494:pharmacology*; D014867:Water
chemical_list: D010936:Plant Extracts; D014867:Water