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Paper Information

Journal:   IRANIAN JOURNAL OF RANGELANDS AND FORESTS PLANT BREEDING AND GENETIC RESEARCH   SPRING 2007 , Volume 15 , Number 1 (27); Page(s) 63 To 74.
 
Paper: 

EVALUATION OF POWDERY MILDEW (SPHAEROTECAPANNOSA) INFECTION RATE ON DIFFERENT GENOTYPES OF ROSA DAMASCENE MILL

 
 
Author(s):  JAMI F.*, SADEGHI SEYED EBRAHIM, TABAEI OGHDAEI S.R., ASAREH M.H.
 
* RESEARCH INSTITUTE OF FORESTS AND RANGELANDS, TEHRAN, IRAN
 
Abstract: 

Regarding the importance of control actions specially reduction of sever damage to plant from powdery mildew, natural infection rate of different Rosa damascena genotypes was studied during 2004 and 2005. This research was conducted on 40 R. damascena accessions cultivated at experimental field of Research Institute of Forest and Rangelands using a factorial experiment based on complete block design with three replications. Each sample unit consisted of 10 compound leaves collected randomly from north, south, east, west directions and center of bushes. Leaf infection percentage was calculated and registered for every accession and direction. Accessions showed significant differences (a=1 %) for infection to powdery mildew. The highest infection was recorded on Isfehan 9 accession with 67.39%, while the lowest infection was registered in Golestanl and Mazandaranl accessions with 1.63 and 1.16%, respectively. However, more investigation is necessary in order to detect higher resistant gonotypes for cultivation in areas under severe disease infection.

 
Keyword(s): ROSA DAMASCENA MILL., SPHAEROTECA PANNOSA (POWDERY MILDEW), VARIATION AND FUNGAL INFECTION
 
References: 
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