Özet:

Starting breeding studies with genotypes known salt tolerance levels provides important advantages. In the study, it was aimed to determine the tolerance levels (0, 50, 100, 150 mM NaCl) of 30 promising pepper genotypes selected from the pepper genotypes selected, which were collected from the province of Karzai as a result of surveys. In order to determine the responses of pepper genotypes to different salt levels; plants were graded according to 0-5 scale evaluation for the symptomatic appearance of the genotypes, 50% flowering time, plant height, stem diameter, number of leaves, stem and root fresh-dry weights, leaf relative water content, relative growth rate, the leaf membrane damage, chlorophyll and carotenoid contents. In addition, the analyzed parameters were evaluated in general and according to the degree of genotypes affected by simple stress; then, it was classified as tolerant, medium tolerant and sensitive. At the end of the experiment, it was determined that the growth and development of pepper genotypes were prevented by the increased salt doses, but the reactions to salt stress showed a wide variation in parameters. When the effects of applied salt doses on all parameters is evaluated in general; genotypes K86, D47, 2015-10, K80, D20, S67 and S65 were more tolerant to salt stress than others. These genotypes can be suggested for pepper growing and further pepper breeding studies in salty soil conditions.

Anahtar Kelimeler: