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Llinell Amser Newidiadau
Mae’r llinell amser yma yn dangos y fersiynau gwahanol a gymerwyd o EUR-Lex yn ogystal ag unrhyw fersiynau dilynol a grëwyd ar ôl y diwrnod ymadael o ganlyniad i newidiadau a wnaed gan ddeddfwriaeth y Deyrnas Unedig.
Cymerir dyddiadau fersiynau’r UE o ddyddiadau’r dogfennau ar EUR-Lex ac efallai na fyddant yn cyfateb â’r adeg pan ddaeth y newidiadau i rym ar gyfer y ddogfen.
Ar gyfer unrhyw fersiynau a grëwyd ar ôl y diwrnod ymadael o ganlyniad i newidiadau a wnaed gan ddeddfwriaeth y Deyrnas Unedig, bydd y dyddiad yn cyd-fynd â’r dyddiad cynharaf y daeth y newid (e.e. ychwanegiad, diddymiad neu gyfnewidiad) a weithredwyd i rym. Am ragor o wybodaeth gweler ein canllaw i ddeddfwriaeth ddiwygiedig ar Ddeall Deddfwriaeth.
Status:
Cyhoeddir Cyfarwyddebau’r UE ar y wefan hon i gynorthwyo croesgyfeirio o ddeddfwriaeth y DU. Ers diwrnod cwblhau’r cyfnod gweithredu (31 Rhagfyr 2020 11.00 p.m.) nid oes unrhyw ddiwygiadau wedi'u cymhwyso i'r fersiwn hon.
[1. FLOW CHART DIAGRAM PRESENTATION U.K.
1.1. Detection scheme for the diagnosis of Ring Rot in potato tubers and potato plants with symptoms of ring rot U.K.
The testing procedure is intended for potato tubers and plants with symptoms typical or suspect of ring rot. It involves a rapid screening test, isolation of the pathogen from infected vascular tissue on diagnostic media and, in case of a positive result, identification of the culture as C. m. subsp. sepedonicus .
1.2. Scheme for detection and identification of Clavibacter michiganensis ssp. sepedonicus in samples of asymptomatic potato tubers U.K.
Principle U.K.
The testing procedure is intended for detection of latent infections in potato tubers. A positive result from at least two screening tests, based on different biological principles, must be complemented by the isolation of the pathogen; followed by, in case of isolation of typical colonies, confirmation of a pure culture as C. m. subsp. sepedonicus . A positive result from only one of the screening tests is not sufficient to consider the sample suspect.
Screening tests and isolation tests must permit a detection threshold of 10 3 to 10 4 cells/ml resuspended pellet, included as positive controls in each series of tests.
1.3. Scheme for detection and identification of Clavibacter michiganensis ssp. sepedonicus in samples of asymptomatic potato plants] U.K.
Yn ôl i’r brig