10.5061/DRYAD.NZS7H44P0
Bürger, Jana
0000-0003-3898-6664
University of Rostock
Colbach, Nathalie
0000-0002-3791-037X
National Research Institute for Agriculture, Food and Environment
Populations of arable weed species show intra-specific variability in
germination base temperature but not in early growth rate
Dryad
dataset
2020
weed biology
agricultural weeds
Agroecology
germination trait
early growth
Deutsche Forschungsgemeinschaft
https://ror.org/018mejw64
BU 3097/1-1
INRAE*
INRAE
2020-12-03T00:00:00Z
2020-12-03T00:00:00Z
en
https://doi.org/10.1371/journal.pone.0240538
591184 bytes
6
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Key plant traits affecting growth performance can differ among and within
species, influencing competitive plant community dynamics. We determined
the intra-specific variability of germination base temperature among 13
arable weed species and the seedlings’ early post-emergence relative
growth rate among 21 species in climate chamber and green house
experiments. Intra-specific variability was quantified with two seed
populations (originating from contrasting climate in Germany &
France) for the germination base temperature of 6 species and for the
early growth rate of 16 species. Inter-specific variability for both
traits was always higher than intra-specific variability. Within a given
species, we found that germination base temperatures were higher in seeds
stemming from colder climate populations. Seedling relative growth rates
did not differ between seed populations. Models simulating weed growth
should reflect these differences in germination traits among populations,
especially when they are used for weed community assembly studies in a
local to regional extent.
Please see the published article for materials and methods of the experiments.
The file contains the raw data used in the analyses and for producing the
figures in manuscript and supplementary material.
"Fig1_temperatures" contains daily measurements of air and soil
temperatures from Dijon-Epoisses (France) and Rostock-Warnemünde(Germany).
"Table3_Basetemperature_counts" contains all counts of
germinated seeds during germination experiments, together with timing of
the observations (given as time since start of the experiment).
"RelativeGrowth_perPot" contains all information on the
regressions fitted on leaf area measurements vs. thermal time since
emergence for each plant in the experiment. The two tables relating to
"Fig5" contain the typical date ranges of crop management
measures as well as typical emergence periods of important weeds in the
regions of Rostock and Dijon. For more detailed information see the
published article.