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Estado actual del mejoramiento por arquitectura en el frijol arbustivo

By: Material type: TextTextLanguage: Spanish Series: Serie SE-2-80Publication details: Cali, CO Centro Internacional de Agricultura Tropical (CIAT) 1980Description: 5 pSubject(s): LOC classification:
  • 12375
Online resources: Summary: A fines de 1977 se inicio en el CIAT el mejoramiento de la arquitectura del frijol arbustivo con los siguientes objetivos: 1) disminuir la diferencia en el rendimiento entre los tipos de semilla pequena y grande; 2) aumentar la capacidad del rendimiento y 3) hacer el cultivo mas atractivo y competitivo para los diferentes sistemas de produccion. Se estan utilizando los metodos de pedigree y de rapido entrecruzamiento y seleccion (REST). Para la recombinacion de caracteres se emplearon generaciones tempranas (F4); de estos se seleccionaron 36 lineas de tipo III que tenian tallos y ramas reclinados y, por lo tanto, sus vainas tenian poco contacto con el suelo, mientras que las del tipo II tenian tallo fuerte y senescencia retardada. Se produjeron 18 lineas del habito II con tallo fuerte y erecto. En 1978 se utilizaron padres mas especificos por sus componentes de arquitectura. Es necesario intensificar el mejoramiento para los tipos II y III. (CIAT)Summary: Towards the end of 1977, the Bush Bean Architectural Improvement Project at CIAT was started with the following objectives: (1) to reduce yield differences between small- and large-seeded types; (2) increase yield capacity and (3) make the crop more attractive and competitive for the different production systems. The pedigree and the fast, intermating and selection (FIS) methods are being used. Early generations (F4) are used for character recombinations. From previous crossings, 36 lines were selected; those of type III had reclining stems and branches and, therefore, their pods had little contact with the soil; and those of type 11, a strong stem and retarded senescence. Eighteen lines of habit 11 were produced with a strong, erect stem. In 1978, parents were used for more specific architectural components. It is necessary to intensify the improvement of types II and III. (CIAT)
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Item type Current library Collection Call number Status Date due Barcode Item holds
Online Document Online Document CIAT Library Web Electronic Document 12375 (Browse shelf(Opens below)) Not For Loan (Restricted Access)
Books Books CIAT Library CIAT Publications CIAT Publications 12375 (Browse shelf(Opens below)) Available
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A fines de 1977 se inicio en el CIAT el mejoramiento de la arquitectura del frijol arbustivo con los siguientes objetivos: 1) disminuir la diferencia en el rendimiento entre los tipos de semilla pequena y grande; 2) aumentar la capacidad del rendimiento y 3) hacer el cultivo mas atractivo y competitivo para los diferentes sistemas de produccion. Se estan utilizando los metodos de pedigree y de rapido entrecruzamiento y seleccion (REST). Para la recombinacion de caracteres se emplearon generaciones tempranas (F4); de estos se seleccionaron 36 lineas de tipo III que tenian tallos y ramas reclinados y, por lo tanto, sus vainas tenian poco contacto con el suelo, mientras que las del tipo II tenian tallo fuerte y senescencia retardada. Se produjeron 18 lineas del habito II con tallo fuerte y erecto. En 1978 se utilizaron padres mas especificos por sus componentes de arquitectura. Es necesario intensificar el mejoramiento para los tipos II y III. (CIAT)

Towards the end of 1977, the Bush Bean Architectural Improvement Project at CIAT was started with the following objectives: (1) to reduce yield differences between small- and large-seeded types; (2) increase yield capacity and (3) make the crop more attractive and competitive for the different production systems. The pedigree and the fast, intermating and selection (FIS) methods are being used. Early generations (F4) are used for character recombinations. From previous crossings, 36 lines were selected; those of type III had reclining stems and branches and, therefore, their pods had little contact with the soil; and those of type 11, a strong stem and retarded senescence. Eighteen lines of habit 11 were produced with a strong, erect stem. In 1978, parents were used for more specific architectural components. It is necessary to intensify the improvement of types II and III. (CIAT)

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