Comparison of Bread Wheat Genotypes for Leaf Rust Resistance Genes

Abstract

Leaf rust caused by Pucinia recondita tritici is one of the most important diseases of bread wheat worldwide. It is considered that the most environmentally sound; low cost method of controlling leaf rust is to breed and grow genetically resistant wheat varieties. In the research, twentyfour bread wheat varieties grown intensively were used as genetic material in Trakya Region where the NorthWest Part of Turkey. To create artificial leaf rust epidemic in field conditions, two sensitive varieties (Morrocco and Cumhuriyet 75) was sown after each ten genotypes, and the reactions of the varieties to leaf rust were investigated in field conditions. Isogenic lines carrying the genes Lr9, Lr14, Lr19, Lr24 and Lr47 from CIMMYT were used as control genotypes in molecular analysis.

Effects of Season and Phenology-based Changes on Soil Erodibility and Other Dynamic RUSLE Factors for Semi-arid Winter Wheat Fields

“…Due to climatic constraints, mostly preferred bread wheat varieties in the region were Bezostaia-1 (Spineless, white glume, hard grain, medium height), Tosunbey (Spined, white glume, white, hard grain, medium height), Esperiya (Spined, spike color white, grain color red, hard grain), Gerek-79 (Spined, glume and spike color brown, soft white grain, medium height) and Sonmez-2001 (Spineless, spike color white, grain color red, hard grain) according to the interviewed expert and farmers in the region. These types of bread are generally of very high quality and are known to be resistant to cold, drougth and bedding (Aktaş & Ünver İkincikarakaya 2010;Karabak et al 2010;Gebremariam et al 2020;Korkut et al 2019;Baser 2020;Cevher et al 2020;TGB 2020).…”

Effect of Parental Genotypes and Their Reciprocal Crosses on Haploid Plant Production by Anther Culture and Confirmation of Double Haploids by Flow Cytometry in Bread Wheat

“…Bread wheat genetic structure is highly affected under adverse agro-ecological conditions in the term of its yield potential. Therefore, there is always a need for wheat varieties that adapt well to regional ecologies, resistant to diseases and pests, tolerant to stress factors such as drought, cold and salinity (Mahmood & Baenziger 2008;Chauhan & Khurana 2011;Gebremariam et al 2020;Başer et al 2020;Liu et al 2020). In conventional wheat breeding programs, many factors affect the development of homozygous lines (variety) after hybridization i.e.…”