Influence of environmental factors on dormansy and germination of weed species Uticaj spoljašnjih faktora na mirovanje i klijanje semena korovskih biljaka

Abstract

This work present two basic biological processes of seed dormancy and germination. Seed dormancy can be characterized as a basic for survival maintenance and expansion in agroecosystem, while, germination is the initial stage of plant development. Based on the research results of a large number of researchers, the work especially shows the behavior of weed seeds in the influence of the most important enviromental factors (water, temperature, light, soil), as well as the laws that govern these processes. Knowing reserves of weed seeds in the soil and their biological and ecological characteristics it is possible to predict when and how many seeds will germinate under certain climatic and soil conditions. A model for the evaluation of the appearance of weed plants and their effective in suppression of a given crop can be made, as well as an assessment on the potential invasiveness of cerain weed species.