Shirzad, H. (2014) Identification of arbuscular mycorrhizal fungi associated with rhizosphere in North Khorasan cotton and effect of Glomus fasciculatumon cotton Verticillium wilt. Masters thesis, University of Zabol.
|
Text
Identification of arbuscular mycorrhizal.pdf Download (50kB) | Preview |
Abstract
The present study was designed to identify Arbuscular mycorrhizal fungi of cotton rhizoshere in North Khorasan and the effect of Glomusfasciculatum fungus on Verticillium wilt of cotton was studied. Soil sampling in the September and October of 2012-2013 crop year was taken. After isolation of spores, identification was done based on valid keys were provided by the researchers. Totally 19 species were identified, including Glomus deserticola, G. claroideum, G. badium, G. aggregatum, G. pansihalos,G. corymbiforme,G. versiforme, G. walkeri,G. caesaris, G. coronatum, G. aurantium, G. minutum, G. gibbosum, G. mosseae, G. xanthium, G. eburneum, G. drummondii, G. geosporum, G. verroculosum. The results showed that the most abundant species was G. aggregatum, with 19% and the lowest abundance belonged to G. geosporum with 1%. All identified fungi are new for cotton rhizosphere in Iran. G. badium ، G.pansihalos, G. walker, G. minutum, G. xanthium, G. drummondii, G. verruculosum species are reported for the first time from Iran. To study the effect of G.fasciculatumon Verticillium wilt disease, an experiment in a completely randomized design with four treatments and four replications was conducted in greenhouse conditions. For statistical analysis of data, SAS software and for the mean comparison Duncan test at 5% probability level was used .The results showed that G. fasciculatum increases some growth parameters of cotton plants significantly. Also disease index of Verticillium wilt was reduced 26% by this fungus.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Biological control, Glomus, interaction, Symbiosis, Verticillium wilt |
| Subjects: | Q Science > QK Botany |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 25 Oct 2016 08:46 |
| Last Modified: | 25 Oct 2016 08:46 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/908 |
Actions (login required)
 |
View Item |
