Impact of Alien Genes on Disease Resistance, Drought Tolerance, and Agronomic Traits in Winter Wheat Commercial Varieties

Background: Global climate change facilitates the spread of diseases winter bread wheat ( Triticum aestivum L.) and increases yield losses caused by a combination these drought. Prevention depends on identification resistance genes introduction into commercial cultivars. Objective: The objective study was to evaluate widespread diseases, drought other agricultural traits amongst members diversity panel consisting introgression lines derived from complex interspecies crosses. Materials Methods: field trials were conducted during 2018-2019 2019-2020 seasons. consists seventy-eight two check cultivars developed for arid zone southern Ukraine. data nine agronomic (quantitative scores) five-pathogen response (point collected subjected both variance correlation analysis determine contribution individual genetic backgrounds towards plant resiliency. Results: Most found resistant rust species. distribution responses in analyzed bimodal rusts unimodal powdery mildew or septoria. showed no with heading date, height, protein content. did not correlate except stem R sp = 0.34**) Septoria blight −0.23*). A negative observed between quality grain yield, but correlated positively each other. Conclusion: High trait correlates low reduced content small grain. frequency combining pathogen as measured total is low. provide source improving disease wheat.