Non-differential interaction between isolates of Rhizoctonia solani and flax cultivars
Aly A. Aly Ezzat M. Hussein Amal A. Asran Ola G.H. El-Hawary Ahmed A. Mosa Mohamed H. Mostafa;
Abstract
The 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 …
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 …
Other data
| Title | Non-differential interaction between isolates of Rhizoctonia solani and flax cultivars | Authors | Aly A. Aly Ezzat M. Hussein Amal A. Asran Ola G.H. El-Hawary Ahmed A. Mosa Mohamed H. Mostafa | Keywords | Rhizoctonia solani ; flax cultivars | Issue Date | 2013 | Publisher | Um Skemmuna | Journal | Icelandic Journal of Agricultural Science 26, 37-44 | DOI | http://hdl.handle.net/1946/19711 |
Attached Files
| File | Description | Size | Format | |
|---|---|---|---|---|
| Aly et al 2013.pdf | Title: Non-differential interaction between isolates of Rhizoctonia solani and flax cultivars | 292.06 kB | Adobe PDF | View/Open |
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