Ispanakta Sel Baskını Stresine Karşı Tolerant Genotiplerin Belirlenmesi

Abstract

Abiotic stress factors generate negative effects on agricultural production daily. With the effect of global warming, the floods that have increased recently not only affected human life negatively but also caused great losses in plant development. For this reason, developing tolerant plants against flooding stress is the most critical approach reducing yield and quality losses. The present study aimed to determine the genotypes that are tolerant of flooding stress by using the agro-morphological and physiological characteristics of the commercial varieties and S5-level spinach breeding materials. In the study, 13-day flood stress was applied to 48 hybrid cultivars and 23 spinach genotypes at the S5 stage during the seedling period. As a result, in addition to the adverse effects of flood stress on plant growth, it was determined that the tolerance was different between genotypes. In the light of the results obtained, SWA0760 F1 among commercial varieties was found to be the most tolerant variety to flood stress. At the same time, genotypes 14, 9, 21, 15, 4 and 10 from breeding lines were promising genotypes that were tolerant to flooding stress. As a result, it is predicted that the inclusion of the genotypes used in the study as parents in hybrid cultivar breeding will make significant contributions to the development of tolerant cultivars against flood stress.