Strain variation in Rhizoctonia solani Kuhn [Thanatephorus cucumeris (Frank) Donk] causing sheath blight of rice
| dc.contributor.advisor | Chandrasekharan Nair, N | |
| dc.contributor.author | Vijayan, M | |
| dc.contributor.author | KAU | |
| dc.date.accessioned | 2020-06-18T05:12:03Z | |
| dc.date.available | 2020-06-18T05:12:03Z | |
| dc.date.issued | 1986 | |
| dc.description | PhD | en_US |
| dc.description.abstract | Symptoms of sheath blight disease usually develop towards the tillering stage of the rice crop. Discolouration initially appearing on the sheath at or above the water level develop into ellipsoidal lesions. The lesions are light greenish gray in colour with dark brown margin. As the disease progress the lesions coalesce and become oblong to irregular in shape. In severe condition the lesions encircle the culm and cause rotting of the sheath. The disease then spreads to the leaves and such plants are killed. Sclerotia and silvery threads of the fungal mycelium appear on the affected regions under high humid conition. The casual organism was Isolated and identified as Rhizoctonia solani Kuhn. The hyphae branched near the distal septus with a costriction at the branch base. Hyphae were multinucleate and in culture showed brown pigmentation. Nature sclerotia were subglobose with rough regular surface. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810147711 | |
| dc.keywords | Fungus, Anastomosis groups, Rhizoctonia solani, Fungicides | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 135p. | en_US |
| dc.publisher | Department of Plant Pathology, College of Agriculture, Vellayani | en_US |
| dc.sub | Plant Pathology | en_US |
| dc.subject | null | en_US |
| dc.theme | Strain variation in Rhizoctonia solani Kuhn | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Strain variation in Rhizoctonia solani Kuhn [Thanatephorus cucumeris (Frank) Donk] causing sheath blight of rice | en_US |
| dc.type | Thesis | en_US |