Notulae Scientia Biologicae, Volume (7), No (2), Year (2015-6) , Pages (239-243)

Title : ( Herbicidal activity of coumarin when applied as a pre-plant incorporated into soil )

Authors: amir hossine nazemi , Ghorban Ali Asadi , Reza Ghorbani ,

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Due to having a short half-life and novel site of action, the herbicidal potential of natural compound are lionized.Coumarin is a secondary metabolitefrom Lavandula sp., family Lamiacae. Theimpact of eight concentrations of coumarin (0, 100, 200,400, 800, 1600, 3200 and 6400 ppm) were separately used as a pre-plant incorporated into soil on six plant species under greenhouse conditions. Generally, coumarin had phytotoxic effect against all plant species. The phytotoxic effect was concentration-dependent. The high concentrations could inhibit the emergence of seedlings (probably germination of seeds). Based on ED50 parameter, the ranking of plant species for tolerance to coumarin wasS. halepnse>Z. mays>C. album>A. retroflexus>E. cruss-gali>P. oleracea.Based on selectivity index, coumarin at a concentration of 365.69 ppm can control P. oleraceawithout damaging to Z. mays, whereas it at any concentration con not control other weeds without damaging to Z. mays.

Keywords

, Allelopathy, maize, selectivity index,
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@article{paperid:1059122,
author = {Nazemi, Amir Hossine and Asadi, Ghorban Ali and Ghorbani, Reza},
title = {Herbicidal activity of coumarin when applied as a pre-plant incorporated into soil},
journal = {Notulae Scientia Biologicae},
year = {2015},
volume = {7},
number = {2},
month = {June},
issn = {2067-3205},
pages = {239--243},
numpages = {4},
keywords = {Allelopathy; maize; selectivity index; weed.},
}

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%0 Journal Article
%T Herbicidal activity of coumarin when applied as a pre-plant incorporated into soil
%A Nazemi, Amir Hossine
%A Asadi, Ghorban Ali
%A Ghorbani, Reza
%J Notulae Scientia Biologicae
%@ 2067-3205
%D 2015

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