The rusts of wheat are important fungal plant pathogens that can be disseminated thousands of kilometers across continents and oceans by wind. Rusts are obligate parasites that interact with resistance genes in wheat in a gene-for-gene manner. New races of rust develop by mutation and selection for virulence against rust resistance genes in wheat. In recent years, new races of wheat leaf rust, ...

The wheat diseases, including yellow rust, brown powdery mildew and karnal bunt, continue to be the major impediments successful cultivation of crops in sub-mountainous region Ropar (Punjab). During survey, it was observed that rust disease is a pre-dominant this has always appeared first foci infection district for last several years Punjab. caused maximum on cultivar Barbat, HD 2967, Shriram ...

The biotrophic rust fungi Puccinia hordei and Puccinia striiformis are important barley pathogens with the potential to cause high yield losses through an epidemic spread. The identification of QTL conferring resistance to these pathogens is the basis for targeted breeding approaches aiming to improve stripe rust and leaf rust resistance of modern cultivars. Exploiting the allelic richness of w...

Abstract Stripe rust, caused by Puccinia striiformis f. sp. tritici ( Pst ) is one of the most destructive diseases wheat Triticum aestivum L.) worldwide causing huge yield losses every year. Development and deployment resistant varieties economical environment friendly approach for controlling this disease. However, because continuous evolution pathogen, genes are easily overcome new virulent ...

Recent advances in the field of sequencing technologies and bioinformatics allow a more rapid access to genomes of non-model organisms at sinking costs. Accordingly, draft genomes of several economically important cereal rust fungi have been released in the last 3 years. Aside from the very recent flax rust and poplar rust draft assemblies there are no genomic data available for other dicot-inf...

Soybean rust, caused by Phakopsora pachyrhizi, is one of the most destructive diseases for soybean production. It often causes significant yield loss and may rapidly spread from field to field through airborne urediniospores. In order to implement timely fungicide treatments for the most effective control of the disease, it is essential to detect the infection and severity of soybean rust. This...

Spectral Vegetation Indices (SVIs) have been widely used to indirectly detect plant diseases. The aim of this research is to evaluate the effect of different disease symptoms on SVIs and introduce suitable SVIs to detect rust disease. Wheat leaf rust is one of the prevalent diseases and has different symptoms including yellow, orange, dark brown, and dry areas. The reflectance spectrum data for...

Phytopathological examination of orchards various forms ownership reveal that every year the rust pip fruit trees has become widespread and reached its epiphytosis. In 2008, we detected symptoms on in form single yellow spots pear leaves different ages ownership. The identifcation found fungus Gymnosporangium sabinae G. Winter, (1882) (syn. fuscum DC. (1805)) was causative agent rust. prevalenc...

Green rust (Fe(4)(II)Fe(2)(III)(OH)(12)SO(4).3H(2)O) is an intermediate phase in the formation of iron (oxyhydr)oxides such as goethite, lepidocrocite, and magnetite. It is widely considered that green rust occurs in many soil and sediment systems. Green rust has been shown to reduce sorbed Se(VI), Cr(VI), and U(VI). In addition, it is also reported that green rust does not reduce As(V) to As(I...

Abstract Breeding of multi-resistant varieties to reduce yield loss due disease damage and lodging, reduction input intensity are high importance for a more sustainable cereal production. The aim this study was evaluate (i) caused by diseases lodging (ii) impact soil fertility in variety trials grown under two intensities. Intensity 2 treated with 1 without fungicides growth regulators. We appl...