Physiological response of Cratylia argentea (Desvaux) O. Kuntze seeds to storage and cryoconservation conditions
On the cryoconservation cool rooms of the Nacional University of Colombia, Palmira, and the International Center for Tropical Agriculture (CIAT), the effects on germination of Cratylia argentea seeds (cv. Veranera ) of three moisture levels (10, 8 and 6%), the liquid N (LN) cryoperservation and two storage conditions were evaluated. The results showed high initial physiological quality of seeds and lack of any type of physical or physiological dormancy which drastically reduce germination on non controlled storage conditions. Germination decreased drastically when moisture content was reduced to 6% which mean the possible non ortodoxus behavior of the Cratylia seeds. For seed cryoperservation by LN inmersion during one month, the adecuate moisture content is 8%. Non differences on seed germination respect to the three moisture levels were observed when cryoperservation period had one hour of duration on liquid nitrogen.
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Universidad Nacional de Colombia - Sede Palmira
2009
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oai:www.revistas.unal.edu.co:article-115112014-07-12T01:46:48Z Physiological response of Cratylia argentea (Desvaux) O. Kuntze seeds to storage and cryoconservation conditions Respuesta fisiológica de semillas de Cratylia argentea (Desvaux) O. Kuntze a condiciones de almacenamiento y crioconservación Montoya Bárcenas, Diana María Bonilla Correa, Carmen Rosa Sánchez Orozco, Manuel Salvador Cardozo Conde, Carlos Iván Escobar, Roosevelt Cratylia argentea leguminosae leguminosas forrajeras semillas almacenamiento de semillas calidad fisiológica crioconservación germinación legume seeds physiological quality cryoperservation germination. Cratylia argentea legume seeds physiological quality cryoperservation germination. On the cryoconservation cool rooms of the Nacional University of Colombia, Palmira, and the International Center for Tropical Agriculture (CIAT), the effects on germination of Cratylia argentea seeds (cv. Veranera ) of three moisture levels (10, 8 and 6%), the liquid N (LN) cryoperservation and two storage conditions were evaluated. The results showed high initial physiological quality of seeds and lack of any type of physical or physiological dormancy which drastically reduce germination on non controlled storage conditions. Germination decreased drastically when moisture content was reduced to 6% which mean the possible non ortodoxus behavior of the Cratylia seeds. For seed cryoperservation by LN inmersion during one month, the adecuate moisture content is 8%. Non differences on seed germination respect to the three moisture levels were observed when cryoperservation period had one hour of duration on liquid nitrogen. En la Universidad Nacional de Colombia y en los cuartos de crioconservación del Instituto Humboldt del Centro Internacional de Agricultura Tropical (CIAT) (Palmira, Colombia) en un diseño completamente al azar, con cuatro repeticiones, se evaluaron los efectos de tres contenidos de humedad (10%, 8% y 6 %), el congelamiento ultrarrápido a través de inmersión en nitrógeno líquido (NL) y dos condiciones de almacenamiento en la germinación de las semillas de Cratylia argentea (Desvaux) O. Kuntze cultivar Veranera. Los resultados mostraron la alta calidad fisiológica inicial de las semillas de esta leguminosa forrajera y la ausencia de latencia física o fisiológica, aunque la germinación se reduce drásticamente en condiciones no controladas de almacenamiento. La germinación disminuyó significativamente cuando el contenido de humedad se redujo a 6%, indicando el posible comportamiento recalcitrante, o sea semillas que pierden su viabilidad por deshidratación producida por el medio donde se encuentren, sea éste de almacenamiento o natural (Vieira et al., 1994). Para la crioconservación por inmersión en nitrógeno líquido durante un mes, el contenido adecuado de humedad fue de 8%, aunque no se detectaron diferencias en la germinación cuando las semillas en los tres niveles de humedad se crioconservaron durante una hora en nitrógeno líquido. Universidad Nacional de Colombia - Sede Palmira 2009-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/msword application/pdf text/html application/pdf https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/11511 Acta Agronómica; Vol. 58 No. 3 (2009); 167-173 Acta Agronómica; Vol. 58 Núm. 3 (2009); 167-173 Acta Agronómica; v. 58 n. 3 (2009); 167-173 2323-0118 0120-2812 spa eng https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/11511/12160 https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/11511/12161 https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/11511/12162 https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/11511/18962 Derechos de autor 2009 Acta Agronómica https://creativecommons.org/licenses/by-nc-nd/4.0 |
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Montoya Bárcenas, Diana María Bonilla Correa, Carmen Rosa Sánchez Orozco, Manuel Salvador Cardozo Conde, Carlos Iván Escobar, Roosevelt |
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Montoya Bárcenas, Diana María Bonilla Correa, Carmen Rosa Sánchez Orozco, Manuel Salvador Cardozo Conde, Carlos Iván Escobar, Roosevelt Physiological response of Cratylia argentea (Desvaux) O. Kuntze seeds to storage and cryoconservation conditions |
author_facet |
Montoya Bárcenas, Diana María Bonilla Correa, Carmen Rosa Sánchez Orozco, Manuel Salvador Cardozo Conde, Carlos Iván Escobar, Roosevelt |
author_sort |
Montoya Bárcenas, Diana María |
title |
Physiological response of Cratylia argentea (Desvaux) O. Kuntze seeds to storage and cryoconservation conditions |
title_short |
Physiological response of Cratylia argentea (Desvaux) O. Kuntze seeds to storage and cryoconservation conditions |
title_full |
Physiological response of Cratylia argentea (Desvaux) O. Kuntze seeds to storage and cryoconservation conditions |
title_fullStr |
Physiological response of Cratylia argentea (Desvaux) O. Kuntze seeds to storage and cryoconservation conditions |
title_full_unstemmed |
Physiological response of Cratylia argentea (Desvaux) O. Kuntze seeds to storage and cryoconservation conditions |
title_sort |
physiological response of cratylia argentea (desvaux) o. kuntze seeds to storage and cryoconservation conditions |
description |
On the cryoconservation cool rooms of the Nacional University of Colombia, Palmira, and the International Center for Tropical Agriculture (CIAT), the effects on germination of Cratylia argentea seeds (cv. Veranera ) of three moisture levels (10, 8 and 6%), the liquid N (LN) cryoperservation and two storage conditions were evaluated. The results showed high initial physiological quality of seeds and lack of any type of physical or physiological dormancy which drastically reduce germination on non controlled storage conditions. Germination decreased drastically when moisture content was reduced to 6% which mean the possible non ortodoxus behavior of the Cratylia seeds. For seed cryoperservation by LN inmersion during one month, the adecuate moisture content is 8%. Non differences on seed germination respect to the three moisture levels were observed when cryoperservation period had one hour of duration on liquid nitrogen. |
publisher |
Universidad Nacional de Colombia - Sede Palmira |
publishDate |
2009 |
url |
https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/11511 |
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