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Susceptibility of Nigerian local cassava cultivars to cassava bacterial blight and cassava mosaic disease

By: Material type: TextTextLanguage: English Publication details: Umudike, NG National Root Crops Research Institute (NRCRI) 1977Description: 27 pSubject(s): LOC classification:
  • 28168
Summary: En un estudio, coleccion y seleccion sistematica de germoplasma de yuca atraves de Nigeria, se recolectaron 766 cv. en el National Root Crops Research Institute en Umudike entre 1973-75. La evaluacion de estos cv. por resistencia al CBB y CAMD ha demostrado que casi el 14.3 por ciento de las colecciones de FDAR/Imo/Anambara presentan resistencia al CBB y el 42.5 por ciento a CAMD; cerca DEL 33 por ciento presenta resistencia al CBB y 40 por ciento a CAMD en las colecciones de Bendel. Sin embargo, debido a las consideraciones de otros parametros de mejoramiento, se han seleccionado solamente 197 cv. como fuente de introducciones para las pruebas multilocalizadas que se llevan a cabo en 9 regiones del pais. (RA-CIAT)Summary: In a systematic survey, collection, and screening of cassava germplasm throughout Nigeria, 766 cv. were assembled at the National Root Crops Research Institute in Umudike between 1973-75. Evaluation of these cv. for resistance to CBB and CAMD has shown that about 14.3 percent of FDAR/Imo/Anambara collections show resistance to CBB and 42.5 percent to CAMD; about 33 percent show resistance to CBB and 40 percent to CAMD in Bendel collections. However, due to considerations of other breeding parameters, only 197 cv. have been selected as source of entries for the multilocational trials being conducted in 9 regions of the country. (AS)
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Item type Current library Collection Call number Copy number Status Date due Barcode Item holds
Books Books CIAT Library Document collection CINFOS Document Collection CINFOS 28168 (Browse shelf(Opens below)) c.1 Short Loan 100062234
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En un estudio, coleccion y seleccion sistematica de germoplasma de yuca atraves de Nigeria, se recolectaron 766 cv. en el National Root Crops Research Institute en Umudike entre 1973-75. La evaluacion de estos cv. por resistencia al CBB y CAMD ha demostrado que casi el 14.3 por ciento de las colecciones de FDAR/Imo/Anambara presentan resistencia al CBB y el 42.5 por ciento a CAMD; cerca DEL 33 por ciento presenta resistencia al CBB y 40 por ciento a CAMD en las colecciones de Bendel. Sin embargo, debido a las consideraciones de otros parametros de mejoramiento, se han seleccionado solamente 197 cv. como fuente de introducciones para las pruebas multilocalizadas que se llevan a cabo en 9 regiones del pais. (RA-CIAT) spa

Trabajo presentado en el 13th Annual conference of the Agricultural Society of Nigeria, 25th-30th July, 1977 at Ahmadu Bella University, Zaria

In a systematic survey, collection, and screening of cassava germplasm throughout Nigeria, 766 cv. were assembled at the National Root Crops Research Institute in Umudike between 1973-75. Evaluation of these cv. for resistance to CBB and CAMD has shown that about 14.3 percent of FDAR/Imo/Anambara collections show resistance to CBB and 42.5 percent to CAMD; about 33 percent show resistance to CBB and 40 percent to CAMD in Bendel collections. However, due to considerations of other breeding parameters, only 197 cv. have been selected as source of entries for the multilocational trials being conducted in 9 regions of the country. (AS) eng

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