Aromatic plant Melissa officinalis extracts selectivity in various biomass crop and legume species
Laen...
Kuupäev
2020
Kättesaadavus
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian Academic Agricultural Society
Abstrakt
Allelopathic effects of various plants can be exploited for
use against weeds; however, the selectivity in different crops is also
important. In the current study, the effects of lemon balm (Melissa
officinalis) allelochemicals on seed germination and seedling emergence
of three biomass crops and three legume species were evaluated. Seed
germination of rapeseed was reduced by 19, 30, 56, and 80% in the
concentrations of 1, 2, 5 and 10%, respectively, as compared to the control
group, whereas sweet sorghum seeds showed a more intermediate
response and sunflower germination was affected only by the highest
concentration. Seed germination of common bean was by 25, 34 and 60%
lower at 1, 2 and 5% extract concentrations, respectively, in comparison
to the control whereas up to 85% reduction of seed germination was
recorded in 10% concentration. Peanut seed germination percentage
ranged between 72 and 47% of control in 5 and 10% concentrations,
respectively, while soybean germination was least affected from
M. officinalis leaf extracts since it was reduced by only 25 and 41% in 5
and 10% concentrations, respectively, as compared to the control.
Seedling emergence of rapeseed was reduced by 14, 25, 46, and 79% in
the concentrations of 1, 2, 5 and 10%, respectively, as compared to the
control whereas lemon balm extracts showed increased selectivity on the
sunflower. Soybean emergence was reduced by only 27 and 46% in 5 and
10% concentrations, respectively, in comparison to the control whereas
common bean’s seedling emergence was reduced up to 35% even in 2%
concentration. Allelopathic response index values confirmed that
sunflower and rapeseed were the least and most sensitive biomass crops to
lemon balm allelochemicals, respectively, whereas sweet sorghum
showed an intermediate response. Increased was the selectivity of the
aqueous leaf extracts on soybean, whereas seed germination and seedling
emergence of peanut were more affected and common bean was the most
sensitive crop. Further research is needed to investigate the selectivity of
M. officinalis and other aromatic plants’ allelochemicals on various crops
and under different soil and climatic conditions to optimize their efficacy
as tools of more eco-friendly weed management strategies.
Kirjeldus
Saabunud / Received 17.06.2020 ; Aktsepteeritud / Accepted 10.07.2020 ; Avaldatud veebis / Published online 10.07.2020 ; Vastutav autor / Corresponding author: Panagiotis Kanatas e-mail: pakanatas@gmail.com
Märksõnad
Melissa officinalis, allelopathy, selectivity, biomass crops, legume, articles