Institute of Botany
of the Czech Academy of Sciences
Institute of Botany of the Czech Academy of Sciences
o arable weeds evolve in response to crop cultivation?
||o arable weeds evolve in response to crop cultivation?
Malíková Lenka (researcher)
||Short-lived weeds are known for their capacity to produce large numbers of seeds and employ avoidance
strategy in conditions of recurrent disturbance on arable land, i.e. they finish their life cycle between two
severe disturbances. However, there are also annual and biennial weeds able to tolerate disturbance and
resprout from adventitious buds located on roots and/or hypocotyl. Do those resprouting weeds evolved
in response to speciec disturbance regime connected with crop cultivation? To test this hypothesis we will
(1) examine resprouting ability of weeds occurring over gradient of disturbance regimes in different crops;
(2) using seeds from field populations, we will establish an experiment, where disturbance and nutrient
availability will be manipulated to evaluate whether response of plants is in accord with disturbance regime
in home locality, and (3) how transgenerational plasticity is involved in observed pattern. This study aim
to contribute to knowledge on short-term evolution of weeds as response to disturbance regime.
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