Evaluation of sunflower genotypes for Alternaria disease resistance to identify the resistant genotypes

Field screening of safflower genotypes for resistance to charcoal rot disease

Nineteen safflower genotypes (Carthamus tinctorius L.) that originated from different geographical regions were screening for their response to infection with Macrophomina phaseolina, the charcoal rot pathogen at the research farm of Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran, in 2005. The plants were evaluated for length and width of necrotic lesion at the e...

Introduction of new indices to identify relative drought tolerance and resistance in wheat genotypes

Evaluation of the Resistance of Some Indigenous Wheat Genotypes to Cereal Cyst Nematode, Heterodera Filipjevi

     Cereal cyst nematode (CCN) is one of the most deleterious pathogens of cereal crops worldwide including Iran. The species Heterodera filipjevi is widely distributed in the fields of wheat. Growing the resistant cultivars is a suitable environmental friendly and cost-saving procedure for nematode control. In current research, the resistance of 13 indigenous wheat genotypes and seven common ...

evaluation of resistance six potato genotypes to early blight disease caused by the pathogenic fungus alternaria tenuissima and alternaria allternata under in vitro and greenhouse conditions

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...

Evaluation of Resistance to Zymoseptoria tritici Blotch andFusarium Head Blight in Some Genotypes of Bread Wheat

Using resistant cultivars is an effective method in management Zymoseptoria tritici Blotch and Fusarium Head Blight of wheat. This study was conducted to identify new sources of resistance to these diseases among a large number of Iranian cultivars and new wheat genotypes. The genotypes were cultivated in an augment design in the research farm of Aliabad Katoul Agricultural School. Artificial c...