A STUDY ON THE DETERMINATION OF COLD RESISTANCE OF BARLEY GENOTYPES WITH DIFFERENT COLD ACCLIMATIZATION DIFFERENT TIMES AND GROWING NATURE

Abstract

Barley is the second most cultivated plant spe cies after wheat in the world. One of the most im portant stress factors limiting barley cultivation areas is cold damage. It is known that cold damage nega tively affects the yield of barley cultivation areas every year. This study was carried out to determine the cold-resistant barley genotypes and to determine how the acclimation times change the cold re sistance. According to the results of the study; It has been determined that the cold resistance of barley genotypes according to the acclimatization period depending on the growing nature of the plant. Also, It was concluded; winter genotypes need longer ac climatization to the cold, and spring and alternative barley genotypes need less cold acclimation time than winter genotypes. As a result, to avoid cold-in duced yield losses in barley cultivation areas, barley genotypes with high winter characteristics should be selected in snow-dominated regions at high-alti tudes. In more temperate and low altitude regions, alternative and spring characteristics barley geno types can be selected.