Germination Parameters of Selected Summer Weeds: Transferring of the AlertInf Model to Other Geographical Regions

Effective weed management depends on correct control timing, which seedling emergence dynamics. Since soil temperature and moisture are the two main factors that determine germination, hydrothermal time model can be used to predict their emergence. The aim of this study was estimate base (Tb) water potential (?b) for germination Chenopodium album, Amaranthus retroflexus, Setaria pumila, Panicum capillare collected from fields in continental Croatia then compare these values with those Italian populations embedded AlertInf model. Germination tests were performed at seven constant temperatures (ranging 4 27 °C) eight potentials (0.00–1.00 MPa). estimated Tb ?b 3.4 °C ?1.38 MPa C. 13.9 ?0.36 A. 6.6 ?0.71 S. 11.0 ?0.87 P. capillare, respectively. According criterion overlap 95% confidence intervals, only album retroflexus Croatian similar. Further field experiments should conducted monitor patterns calibrate AlerInf equation parameters.