Determinacao da epoca adequada de colheita do feijao (Phaseolus vulgaris L.) com base na qualidade fisiologica das sementes

By:

SILVA, C.M. DA

Contributor(s):

Material type: Article

ArticleLanguage: Portuguese Description: 22(122):272-281Subject(s): LOC classification:

7970

In: Revista Ceres (Brasil)Summary: Se realizaron experimentos en Vicosa (Brasil) para determinar la epoca optima de cosecha de la variedad de frijol Rico 23. Como base para esta determinacion se utilizo la calidad fisiologica de la semilla. Las semillas se cosecharon 72 dias despues de la emergencia a intervalos de 48 horas. La calidad fisiologica se determino mediante las siguientes pruebas: velocidad de crecimiento, conteo inicial de la germinacion y germinacion. El comportamiento de la semilla tambien se estudio bajo condiciones de campo. Los resultados de laboratorio y de campo mostraron que el mejor periodo para la cosecha de la semilla oscila entre los 82 y 98 dias despues de la emergencia. En este periodo las semillas presentaron la maxima calidad fisiologica, que posteriormente disminuyo considerablemente. El conteo inicial de la germinacion, aplicado de acuerdo a las Regulaciones Internacionales de Analisis de Semilla, no sirvio para determinar eficientemente el vigor de la semilla. (RA-CIAT)Summary: Experiments were carried out in Vicosa (Brazil) to determine optimal harvest time for the bean variety Rico 23. Physiological quality of the seeds was used as the basis for this determination. Seventy-two days after plant emergence, seeds were harvested at 48- h intervals. Physiological quality was determined by the following tests: accelerated aging, initial germination count and germination. Seed performance was also studied under field conditions. Laboratory and field results showed that the period between 82-98 days postemergence is best for seed harvest. In this period seeds had maximun physiological quality, which declined considerably afterwards. The initial germination count, applied according to the International Rules of Seed Analysis, was not efficient in determining seed vigor. (AS)

Tags from this library: No tags from this library for this title.

Average rating: 0.0 (0 votes)

Holdings ( 1 )
Title notes ( 2 )

Holdings
Item type	Current library	Collection	Call number	Copy number	Status	Date due	Barcode	Item holds
Journal Article	CIAT Library Document collection CINFOS	Document Collection CINFOS	7970 (Browse shelf(Opens below))	c.1	Short Loan		100066558

Total holds: 0

Browsing CIAT Library shelves, Shelving location: Document collection CINFOS, Collection: Document Collection CINFOS Close shelf browser (Hides shelf browser)

Previous	No cover image available No cover image available	No cover image available No cover image available	No cover image available No cover image available	No cover image available No cover image available	No cover image available No cover image available	No cover image available No cover image available	No cover image available No cover image available	Next
Previous	7967 Ensaios preliminares de competicao entre variedades de feijao (Phaseolus vulgaris L.) na Zona Metalurgica de Minas Gerais	7968 Efeito da adubacao nitrogenada, fosfatada e potassica na producao da soja (Glycine max (L) Merril) e do feijao (Phaveolus vulgaris L.) em latossolo vermelho escuro textura media, nos municipios de Goiania e Anapolis, Goias	7969 Efeitos de intervalos de plantio e de niveis de adubacao sobre o rendimento e seus componentes, em algumas variedades de feijao (Phaseolus vulgaris L.)	7970 Determinacao da epoca adequada de colheita do feijao (Phaseolus vulgaris L.) com base na qualidade fisiologica das sementes	7971 Qualidade fisiologica das sementes de feijao (Phaseolus vulgaris L.) colhidas em diferentes periodos apos a fecundacao do ovulo	7972 In vitro simulation of cytoplasmic membrane senescence in cotyledons	7973 Subunit studies of coupling factor 1 of bean chloroplasts	Next

Se realizaron experimentos en Vicosa (Brasil) para determinar la epoca optima de cosecha de la variedad de frijol Rico 23. Como base para esta determinacion se utilizo la calidad fisiologica de la semilla. Las semillas se cosecharon 72 dias despues de la emergencia a intervalos de 48 horas. La calidad fisiologica se determino mediante las siguientes pruebas: velocidad de crecimiento, conteo inicial de la germinacion y germinacion. El comportamiento de la semilla tambien se estudio bajo condiciones de campo. Los resultados de laboratorio y de campo mostraron que el mejor periodo para la cosecha de la semilla oscila entre los 82 y 98 dias despues de la emergencia. En este periodo las semillas presentaron la maxima calidad fisiologica, que posteriormente disminuyo considerablemente. El conteo inicial de la germinacion, aplicado de acuerdo a las Regulaciones Internacionales de Analisis de Semilla, no sirvio para determinar eficientemente el vigor de la semilla. (RA-CIAT) spa

Experiments were carried out in Vicosa (Brazil) to determine optimal harvest time for the bean variety Rico 23. Physiological quality of the seeds was used as the basis for this determination. Seventy-two days after plant emergence, seeds were harvested at 48- h intervals. Physiological quality was determined by the following tests: accelerated aging, initial germination count and germination. Seed performance was also studied under field conditions. Laboratory and field results showed that the period between 82-98 days postemergence is best for seed harvest. In this period seeds had maximun physiological quality, which declined considerably afterwards. The initial germination count, applied according to the International Rules of Seed Analysis, was not efficient in determining seed vigor. (AS) eng