Non-differential interaction between isolates of Rhizoctonia solani and flax cultivarsAly A. Aly Ezzat M. Hussein Amal A. Asran Ola G.H. El-Hawary Ahmed A. Mosa Mohamed H. Mostafa
AbstractThe pathogenicity of 24 isolates of Rhizoctonia solani (7 isolates from anastomosis group AG-2 and 17 from AG-4) was evaluated on 10 flax cultivars under greenhouse conditions. Survival, plant height, and dry weight were used as criteria to evaluate pathogenicity. Analysis of variance (ANOVA) showed that the cultivar was a highly significant source of variation in all the tested parameters (P< 0.0002). Isolate was always a highly significant source of variation in all the tested parameters (P= 0.0000). Cultivar x isolate interaction was always a nonsignificant source of variation. The results of the ANOVA in the present study suggest that physiologic specialization did not occur within R. solani isolates pathogenic on flax. They also imply that resistance of the tested cultivars was only horizontal, and there were significant differences among cultivars in this type of resistance. Similarly …
|Keywords||Rhizoctonia solani ; flax cultivars||Issue Date||2013||Publisher||Um Skemmuna||Journal||Icelandic Journal of Agricultural Science 26, 37-44||URI||http://research.asu.edu.eg/123456789/645||DOI||http://hdl.handle.net/1946/19711|
Recommend this item
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.