Allelopathic Effect of Aqueous Extracts of Grass Genotypes on Eruca Sativa L.
Masoud Motalebnejad,
Hassan Karimmojeni,
Mohammad Mahdi Majidi
et al.
Abstract:The aim of the current research is to evaluate the allelopathic activity of fifty grass genotypes from different species and to identify phenolic compounds in the genotypes that have the highest allelopathic activity and inhibitory effect on Eruca sativa L. (Rocket). Aqueous extract was prepared from the leaves of grass genotypes in different concentrations and its effect on germination and growth of E. sativa L. was measured. According to the results, the type of genotype and the concentration of the extract … Show more
“…A similar allopathic inhibition effect of sesame extracts on seed germination of Phyllostachys edulis (Carri-ere) J. Houz was found 65 . It was established that phenolic compounds from Festulolium genotypes have the greatest allelopathic effect on the growth processes of Eruca sativa L. (Rocket) 66 . The duration of treatment with VA extracts significantly affects the growth and development of plants, which may be due to the different effects of water-soluble and non-water-soluble metabolites of extracts, including water-soluble phenolic compounds (WSPC).…”
Viscum album L. (VA) is a unique plant with regard to its biological content. It is rich in many different metabolites with high potential in various spheres of human activity. We conducted a pilot study with 5 VA aqueous extracts of different host-tree species for pre-sowing treatment of Cucurbita maxima ‘Hokkaido orange’ seeds. We set the following objectives consisting of hypotheses (1) H01 is based on different effects of tested VA extracts depending on host trees and time of pre-treatment; (2) H02 focuses on the allopathic properties of the tested extracts affecting the plant growth and development by dose–response relationship; (3) A01 considers highly biologically active compounds of VA extracts also containing allelochemicals that can be used to regulate plant growth processes and create eco-friendly and resilient cities. The analysis of the stimulatory allelopathy index for 7 parameters demonstrates the direct effect of VA extracts in 62.3% of cases. The variability of the broad spectrum of effects of VA extracts of different host trees on the ontogenesis of C. maxima plants shows the presence of potential allelochemicals, resulting from the vital products of the host-parasite relationship. These effects are not fully explained by total polyphenol content and antioxidant activity as in previous studies of other mistletoe species. The authors consider this work a pilot study that expands the areas of application of VA extracts and knowledge about potential sources of allelochemicals.
“…A similar allopathic inhibition effect of sesame extracts on seed germination of Phyllostachys edulis (Carri-ere) J. Houz was found 65 . It was established that phenolic compounds from Festulolium genotypes have the greatest allelopathic effect on the growth processes of Eruca sativa L. (Rocket) 66 . The duration of treatment with VA extracts significantly affects the growth and development of plants, which may be due to the different effects of water-soluble and non-water-soluble metabolites of extracts, including water-soluble phenolic compounds (WSPC).…”
Viscum album L. (VA) is a unique plant with regard to its biological content. It is rich in many different metabolites with high potential in various spheres of human activity. We conducted a pilot study with 5 VA aqueous extracts of different host-tree species for pre-sowing treatment of Cucurbita maxima ‘Hokkaido orange’ seeds. We set the following objectives consisting of hypotheses (1) H01 is based on different effects of tested VA extracts depending on host trees and time of pre-treatment; (2) H02 focuses on the allopathic properties of the tested extracts affecting the plant growth and development by dose–response relationship; (3) A01 considers highly biologically active compounds of VA extracts also containing allelochemicals that can be used to regulate plant growth processes and create eco-friendly and resilient cities. The analysis of the stimulatory allelopathy index for 7 parameters demonstrates the direct effect of VA extracts in 62.3% of cases. The variability of the broad spectrum of effects of VA extracts of different host trees on the ontogenesis of C. maxima plants shows the presence of potential allelochemicals, resulting from the vital products of the host-parasite relationship. These effects are not fully explained by total polyphenol content and antioxidant activity as in previous studies of other mistletoe species. The authors consider this work a pilot study that expands the areas of application of VA extracts and knowledge about potential sources of allelochemicals.
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