TITLE:
Screening of Potato Lines Including Department Genetic & National Plant Gene Bank of Iran for Resistance to Early Blight (Alternaria. solani) Using Culture Filtrate Produced by the Fungus
AUTHORS:
Hamid Reza Mirkarimi, Ahmad Abasi Moghadam, Javad Mozafari
KEYWORDS:
Screen; Culture Filtrate; Early Blight; Severity
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.4 No.10,
October
25,
2013
ABSTRACT: Potato is a plant that can be influenced by early blight
disease. Early blight is one of the most destructive plant diseases, especially
in the members of solanaceae family. This disease can reduce yield.
Experiment design was a factorial randomized complete design to evaluate the isolate pathogenic Alternaria
solani in National Plant Gene Bank of Iran, during 2008-2009. This experiment
was conducted with three replications, and the factors include test
methods and three lines 9506, 10908-05 and
10908-18 with genotypes of Agria, Casmos and Desiree (susceptible) and Delta
(resistant control). Analysis of
variance table was based on the area under the disease progress
curve, indicating the effects of the experimental methods;
genotype and their interactions are significant at the 1% level. In greenhouse
evaluation, the symptoms appeared on, the first day. In this method the area under
the curve progression was noted in 10 times, but in vitro method, the symptoms of this
evaluation appeared on the first or second day. The Evaluation was carried out
after inoculation, and was noted 6 times. The results indicate that genotypes
and lines are located in four different groups. In this case, line 9506 and Cosmos were quite sensitive to the surface, and
Desiree, is located in a sensitive area. Line 10908-18 and Agria, located approximately at the level of resistance, and line
10908-05 and Delta, have been resistant surface.