Bio-inherent attributes of water hyacinth procured from contaminated water body–effect of its compost on seed germination and radicle growth. (1st March 2020)

• Record Type: Journal Article
• Authors: Mazumder, Payal; Khwairakpam, Meena; Kalamdhad, Ajay S.
• Is Part Of: Journal of environmental management. Volume 257(2020)
• Publication Date: 2020-03-01
• Subjects: Seed germination -- Phytotoxicity -- Water hyacinth -- Lycopersicon esculentum -- Brassica oleracea; Environmental policy -- Periodicals; Environmental management -- Periodicals; Environment -- Periodicals; Ecology -- Periodicals; 363.705
• DOI: 10.1016/j.jenvman.2019.109990
• Languages: English
• ISSNs: 0301-4797

Abstract

Abstract: Compost is generally used for soil conditioning, growing plants and remediation of pollution. It is imperative to evaluate compost standard and toxicity test is a salient parameter for determining compost quality. Seed germination test is an essential method to discern the phytotoxicity of compost. Ecotoxicity of water hyacinth compost was inspected for the denouement of the compost quintessence and its concentration on seed germination indices. The aim of this paper was to assess seed emergence rate index, germination velocity coefficient and rate of germination of L. esculentum and B. oleracea at discrete concentrations of water hyacinth compost. The highest germination percentage achieved was 95% ( L. esculentum ) at 100 g/L and 100% ( B. oleracea ) at 32 g/L of the compost extract. The probability of inadvertent ceasing of germination was found to be < 0.0001 for either of the test species. Consequently, the water hyacinth compost aid plant growth and is recommended for substantially ameliorating languishing ecological idiosyncrasy. Graphical abstract: Image 101401 Highlights: Eichhornia crassipes (water hyacinth) was procured from contaminated lake for composting. Seed germination bioassay with L. esculentum and B. oleracea was conducted for agrarian implementation. The highest germination was found at a concentration of 100 g/L (95%) and 32 g/L (100%) for L. esculentum and B. oleracea, respectively. Germination index was found to be >65% for all the concentrations of water hyacinth compost, except for 4 g/L for L. esculentum and 1 g/L for B. oleracea. Phytotoxicity test revealed the suitability of the compost for plant growth.