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  1. Kerala Agricultural University Digital Library
  2. 1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)
  3. PG Thesis
a
Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/8076
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dc.contributor.advisorChandrasekharan Nair, M-
dc.contributor.authorKrishnakumaran Nair, B-
dc.date.accessioned2020-07-23T05:01:57Z-
dc.date.available2020-07-23T05:01:57Z-
dc.date.issued1986-
dc.identifier.citationCoAV TH-384en_US
dc.identifier.siciCoAV TH-384en_US
dc.identifier.urihttp://hdl.handle.net/123456789/8076-
dc.description.abstractStudies on symptomatology, epidemiology and control aspects of sheath rot disease of rice caused by Serocladium oryzae Cams & Hawksworth (= Acrocylindrium oryzae Saw.) were done in detail. The disease initiated as purplish-brown oblong lesions on the sheath of the flag leaf. At maturity lesions enlarged in size with grey -white centres and often covered the entire flag leaf sheath. Panicle often did not emerge but choked inside the affected sheaf itself. Artificial inoculation studies showed that under sufficient humid conditions the pathogen took an average five to eight days for initiation and 15 to 20 days for the complete development of the disease in rice plants. The pathogen was isolated from four naturally infected rice varieties, collected from three different culture (isolates viz., S1, S2, S3, S4, S5, S6 & S7) were selected based mainly on symptomatological variations and their comperative morphological characters were studied in detail. No appreciable differences were noticed in the morphological characters between isolates.en_US
dc.language.isoenen_US
dc.publisherDepartment of Plant Pathology, College of Agriculture, Vellayanien_US
dc.subjectPathogenicityen_US
dc.subjectPest infectional changesen_US
dc.subjectSheath rot incidenceen_US
dc.subjectSeed-borne natureen_US
dc.subjectRice-
dc.titleEpidemiology and control of sheath rot disease of riceen_US
dc.typeThesisen_US
Appears in Collections:PG Thesis

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