Resistance Of Durum Wheat Samples Different In Yield Elements To The Aging Factor

The purpose of this study was to give a comparative assessment of resistance to the stress factor of accelerated aging in terms of seed viability using the accessions of durum wheat collection (totally 54 genotypes) differing in yield indicators. The object of the study was accessions from collection of durum winter wheat revealing the yield indicators that were higher (v.leucurum Al., v.hordeiforme Host., v.melanopus Al., v.erythromelan Korn.) and lower (v.niloticum Korn., v.murciense, v.boeufii Flaksb., v.leu�omelan Al.) of the standard variety Bereketli-95. Sowing of seeds was carried out at the experimental site of the Absheron Experimental Base in the Institute of Genetic Resources of ANAS. Individual analysis of plants was carried out according to the following traits: productive tillering, number and weight of grains of the main spike, weight of grains per plant, and weight of 1000 grains. After harvesting and analysis, 100 seeds from each accession were stressed. To identify more resistant varieties of wheat to stress factors, accessions of durum wheat were taken with different yield indicators compared to the standard variety Bereketli-95. Accelerated aging of seeds makes it possible to simulate the effect of unfavorable factors and predict their effect on the resistance of seeds from various varieties and plant samples. A comparative assessment of the seed resistance from the studied durum wheat accessions to aging allowed us to conclude based on germination after accelerated aging, that those of them with high productivity elements - v.leucurum Al., v.hordeiforme Korn., v.melanopus Al., v.erythromelan Korn. showed greater resistance. Among the studied genotypes, the accession belonged to the botanical variety v. niloticum Korn. appeared to be the least resistant, the loss of germination of which under stress was 29,0%. Based on the results of study, it can be concluded that seed samples from genotypes with high indices of productivity elements turned out to be more resistant to the stress factor of accelerated aging.