Open AccessRozmieszczenie i ekologia rozsiewania się chiuastów w zespołach polnych w Gorcach [Distribution and dispersal ecology of weeds in segetal plant communities in the Gorce Mts. (Polish Western Carpathians)]
Author(s) -
Jan Kornaś
Publication year - 2015
Publication title -
acta agrobotanica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 9
eISSN - 2300-357X
pISSN - 0065-0951
DOI - 10.5586/aa.1972.001
Subject(s) - biological dispersal , weed , ecology , limiting , crop , seed dispersal , flora (microbiology) , biology , plant community , altitude (triangle) , taxon , species richness , population , mechanical engineering , genetics , demography , geometry , mathematics , sociology , bacteria , engineering
Dispersal ecology of 113 taxa of weeds studied. The weight of their diaspores was determined and their morphological adaptations to natural dispersal agents were examined. The role of man in weed dispersal was established by analysing 25 crop seed samples of local origin. Dispersal spectra of cereal crop culture community Geranio-Silenetum vicietosum, root-crop culture community G.-S. veronicetosum, and flax culture community Spergulo-Lolietum remoti were compiled. The reasons of decline of the segetal flora with altitude was explained by the limiting action of climatic factors upon weeds