Abstract
Medicinal plants are best sources to treat various illnesses with them. So they might prove be a good source of developing novel herbicides. The aim of the present study was to investigate the potential inhibition effects of Cucumis sativus, Portulaca oleracea, Malus baccata, Saxifraga flagillaris, Geranium wallichianum and Monotheca buxifolia powdered material on germination of Lactuca sativa seeds. Sandwich method was used for determining phytotoxicity of these plants in terms of radicle and plumule length of Lactuca sativa seeds with different amounts of 10, 20, and 40mg of powdered plant material. Cucumis sativus and Monotheca buxifolia were found the most phytotoxic among the selected medicinal plants at all concentration. The results can be sum off as Monotheca buxifolia > Cucumis sativus > Malus baccata > Saxifraga flagillaris > Geranium wallichianum > Portulaca oleraceae. From the results it can be assumed that the phyto-toxic effects of the aforementioned plants could be helpful in searching and development of new pharmaceuticals that can be used as positive sources for the development of new weedicides. Keywords: Allelopathy; Lactuca sativa; Medicinal Plants; Phyto-toxic Potential http://dx.doi.org/10.19045/bspab.2019.80103
Highlights
Plants of toxic nature can be used as natural allelopathy which is the effects of donor herbicides or these phyto toxic components plant, on recipient plant by the discharge of of interest can be extracted from the plants for chemicals in the environment
Such chemical are present in different plant parts in high amounts at specific environmental conditions [2]
Fujii et al [7] reported the allelopathic effect from leaf mess leachates on lettuce seed germination and found inhibitory action determined by the sandwich method
Summary
Plants of toxic nature can be used as natural allelopathy which is the effects of donor herbicides or these phyto toxic components plant, on recipient plant by the discharge of of interest can be extracted from the plants for chemicals in the environment. A variety of influences the growth and development of plant’s metabolites used to inhibit or other plants either by inhibiting or stimulate the growth and development of stimulating the bio-physiologic processes of other plants Mentha longifolia and M. piperrita reduces germination of Sorghum helapence and Rumex crispus [10]
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