<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Susceptibility to ergot in Zimbabwe of sorghums tbat remained uninfected in their native climates in Ethiopia and Rwanda"^^ . "Forty-four local Ethiopian and Rwandan sorghums (Sorghum bicolor) were observed to remain free of\r\nergot, or had only low incidence, in their natural equatorial latitudes and were potentially of interest, in\r\nthe design of male-sterile lines for F| hybrid breeding, if they possessed a physiologically based resistance\r\nmechanism. These sorghums were therefore also investigated under natural and artificial disease\r\npressures in Zimbabwe where unadapted development and inappropriate long daylengtb prevented\r\nflowering in 18 accessions. Of the remaining 16 Ethiopian and 10 Rwandan accessions which flowered,\r\nonly one from each country remained free of ergot. The susceptibility expressed was ascribed to observed\r\nasynchrony of stigma exsertion with anthesis. In the Rwandan accession that persistently remained free\r\nof ergot in Zimbabwe, histology of ovules showed pollination before floret gaping, so that a general\r\nprinciple of disease escape due to efficient pollination is proposed for the Ethiopian and Rwandan\r\nsorghums in their native climates. The findings emphasize that cleistogamy is a desirable character for\r\navoiding ergot infection in self-fertile sorghums and suggest that the Ethiopian and Rwandan sorghutns\r\nmay not generally be useful for breeding ergot-resistant male-sterile female lines. However, a few\r\naccessions deserve more detailed study as a potential genetic resource, before a firm conclusion that all\r\napparent resistance is disease escape owing to efficient pollination."^^ . "1994" . . "43" . "1" . . "Plant Pathology"^^ . . . . . . . . . . . . . . "D E"^^ . "Frederickson"^^ . "D E Frederickson"^^ . . "P G"^^ . "Mantle"^^ . "P G Mantle"^^ . . "W A J De"^^ . "Milliano"^^ . "W A J De Milliano"^^ . . . . . . "Susceptibility to ergot in Zimbabwe of sorghums tbat remained uninfected in their native climates in Ethiopia and Rwanda (PDF)"^^ . . . . . . . . . "Susceptibility to ergot in Zimbabwe of sorghums tbat remained uninfected in their native climates in Ethiopia and Rwanda (Image (JPEG))"^^ . . . . . . "Susceptibility to ergot in Zimbabwe of sorghums tbat remained uninfected in their native climates in Ethiopia and Rwanda (Indexer Terms)"^^ . . . . . "HTML Summary of #1486 \n\nSusceptibility to ergot in Zimbabwe of sorghums tbat remained uninfected in their native climates in Ethiopia and Rwanda\n\n" . "text/html" . . . "Sorghum"@en . .