Stem rust along with foliar diseases is a harmful pathogen causing strong yield reduction worldwide. Resistant cultivars provide efficient way for wheat growers to avoid yield losses. In our study, 200 wheat cultivars registered in Hungary in the past twenty five years, were investigated using molecular markers. A significant part of the cultivars carried the 1BL.1RS translocation, the source o...

Race-specific resistance of wheat to Puccinia graminis f. sp. tritici is primarily posthaustorial and often involves the induction of a hypersensitive response (HR). The aim of this study was to investigate host defense responses induced in interactions between P. graminis f. sp. tritici races and wheat lines carrying different race-specific stem rust resistance (Sr) genes. In incompatible inte...

Abstract The effect of rapid rewetting dry soil to a water content optimal for microbial activity on respiration and nutrient cycling has been extensively studied. However, with smaller rainfall events, may also rewet more slowly an interval between partial events. In this experiment, unamended or amended faba bean residue (C/N 9) was incubated at 50% water-holding capacity (WHC) 2 weeks, then ...

Stem rust has become a renewed threat to global wheat production after the emergence and spread of race TTKSK (also known as Ug99) and related races from Africa. To elucidate U.S. winter wheat resistance genes to stem rust, association mapping was conducted using a panel of 137 lines from cooperative U.S. winter wheat nurseries from 2008 and simple sequence repeat (SSR) and sequence tagged site...

The Volga region is one of the main grain-producing regions Russia. Wheat stem rust caused by Puccinia graminis f. sp. tritici among most destructive fungal diseases wheat. Recently, its harmfulness has increased in region. In this regard, an analysis resistance and diversity Sr genes Russian wheat cultivars necessary. work, 126 (including 23 durum 103 bread cultivars) approved for use were eva...

Following the emergence of the Ug99 lineage of Puccinia graminis f. sp. tritici (Pgt) a collective international effort has been undertaken to identify new sources of wheat stem rust resistance effective against these races. Analyses were undertaken in a collection of wheat genotypes gathered from across Africa to identify stem rust resistance effective against the Pgt races found in Eastern an...