Powdery mildew disease of oilseed mustard caused by Erysiphe cruciferarum is a primary reason yield reduction not only in India but also throughout the world. Identification and cultivation resistant genotypes against powdery way to overcome this challenge. In present investigation, we targeted screen 75 Brassica based on indexing under field conditions gene-specific molecular markers. Disease ...

infection process including spore germination, penetration and intercellular development of cercospora beticola in the mesophyll of immature and mature leaves of two resistant  (fd0018 and hm1836) and a susceptible genotypes (236) of sugar beet were studied, in order to determine the relative importance of defense phenomena in pre and post-penetration stage of infection to the pathogen in sugar...

resistance of 11 genotypes of sugar beet to cyst nematode was evaluated in two separate greenhouse experiments in completely randomized design. in each experiment, 50 seedlings of each genotype were inoculated with 1000 nematode larves in several times. after 9 weeks, the number of cysts on each plant was counted. data were analyzed with sas program. the results showed that the genotypes differ...

in order to determine the resistance levels and the most suitable potato genotypes to the early blight, an experiment was conducted in a completely randomized factorial design with three replications, in national plant gene bank of iran during 2007-2008. factors included pathogenic fungus, a. tenuissima and a. alternata and six potato genotypes, picasso, marfona, delta, agria, cosmos and armida...

methods and materials: hepatitis b virus dna was detected by conventional pcr in some of the serum samples obtained from hbsag-positive chronic hepatitis b (chb) patients who were referred to health centers of shahrekord for routine monitoring of the disease. subsequently, using real-time pcr, the dna samples were used for genotyping and analysis of resistance to lamivudine. results: the dna wa...

Ascochyta blight caused by Ascochyta rabiei (Pass.) Labrousse is a major biotic constraint in production of chickpea. In the present investigation, all chickpea genotypes [E100Y (m), Gaurav, Pb-7 and L550] induced 100% callus on standard medium with greenish colour and fragile structure. These calli were used for in vitro screening against pathogen, A. rabiei culture filtrate at 0, 5, 10, 15 an...

Drought stress in plants, the change (increase or decrease) in the production of plant proteins. Proteomics in recent years one of the most powerful tools that help us to study the changes in protein In order to investigate the proteome of wheat leaves in response to terminal drought, two genotypes susceptible and resistant wheat genotypes were evaluated under irrigated (non-stress) and rain-fe...

During winter 2004 and 2005, two field and glasshouse experiments were conducted to evaluate the response of 471 chickpea genotypes to Ascochyta rabiei, as Ascochyta blight (AB) disease in Chickpea (Cicer aurietimum). Frequent rainfall at flowering and pod formation stages made favorite conditions conducive for the infection and symptoms expression. So, the genotypes with high level of toleranc...