Germination seeds by different temperature conditions

This thesis deals with the biology, occurrence, harmfulness and control selected weed. The thesis aims to process the selected weeds in stands of cultivated crops overview of the biology, extension and suggest regulatory measures for especially dangerous weeds on arable land as for example Redroot pigweed (Amaranthus retroflexus L.), Cleavers (Galium aparine L.), Field pennycress (Thlaspi arvense L.), Shepherd's purse (Capsella bursa-pastoris L.) and Gallant soldier (Galinsoga parviflora Cav.).For selected species was determined germination seeds by different temperature conditions and by different seed depth