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Relationship of leaf parameters with genetic ozone insensitivity in selected Phaseolus vulgaris cultivars

By: Contributor(s): Material type: ArticleArticleLanguage: English Description: 60(11):2187-2191Subject(s): LOC classification:
  • 17754
 In: Canadian Journal of BotanySummary: Se evaluo la relacion del dano foliar inducido por el O3 (sensibilidad al O3) con varias caracteristicas foliares que incluian frecuencia estomatica, cierre estomatico en presencia de O3 y densidades de tricoma (abaxial y adaxial) para un grupo diverso de 12 cv. de Phaseolus vulgaris. Se observaron diferencias entre cv. en cuanto a la sensibilidad al O3 y los parametros foliares que incluian frecuencia estomatica, densidad de tricoma y cierre estomatico en presencia de O3. Aunque existian diferencias significativas (P 0.05) entre los cv. en cuanto a frecuencia estomatica y densidades de tricoma, no se observo un modelo consistente entre los cv. sensibles e insensibles. Los genotipos sensibles al O3 respondieron a 40 ppcm de O3 con un cierre estomatico similar o mayor que los genotipos mas insensibles, indicando que el cierre estomatico no era un mecanismo primordial para la insensibilidad al O3 entre los cv. evaluados. (RA-CIAT)Summary: The relationship of O3-induced foliar injury (O3 sensitivity) with several leaf characteristics including stomatal frequency, stomatal closure in the presence of O3, and trichome densities (abaxial and adaxial) was evaluated for a diverse group of 12 Phaseolus vulgaris cv. Differences were observed among cv. for O3 sensitivity and leaf parameters including stomatal frequency, trichome density, and stomatal closure in the presence of O3. Although significant (P less than 0.05) differences among the cv. for stomatal frequency and trichome densities existed, no consistent pattern between insensitive and sensitive cv. was observed. O3-sensitive genotypes responded to 40 pphm O3 with similar or greater stomatal closure than the more insensitive genotypes, indicating that stomatal closure was not a primary mechanism for O3 insensitivity among the cv. evaluated. (AS)
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Journal Article Journal Article CIAT Library Document collection CINFOS Document Collection CINFOS 17754 (Browse shelf(Opens below)) c.1 Short Loan 100065677
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Se evaluo la relacion del dano foliar inducido por el O3 (sensibilidad al O3) con varias caracteristicas foliares que incluian frecuencia estomatica, cierre estomatico en presencia de O3 y densidades de tricoma (abaxial y adaxial) para un grupo diverso de 12 cv. de Phaseolus vulgaris. Se observaron diferencias entre cv. en cuanto a la sensibilidad al O3 y los parametros foliares que incluian frecuencia estomatica, densidad de tricoma y cierre estomatico en presencia de O3. Aunque existian diferencias significativas (P 0.05) entre los cv. en cuanto a frecuencia estomatica y densidades de tricoma, no se observo un modelo consistente entre los cv. sensibles e insensibles. Los genotipos sensibles al O3 respondieron a 40 ppcm de O3 con un cierre estomatico similar o mayor que los genotipos mas insensibles, indicando que el cierre estomatico no era un mecanismo primordial para la insensibilidad al O3 entre los cv. evaluados. (RA-CIAT) spa

The relationship of O3-induced foliar injury (O3 sensitivity) with several leaf characteristics including stomatal frequency, stomatal closure in the presence of O3, and trichome densities (abaxial and adaxial) was evaluated for a diverse group of 12 Phaseolus vulgaris cv. Differences were observed among cv. for O3 sensitivity and leaf parameters including stomatal frequency, trichome density, and stomatal closure in the presence of O3. Although significant (P less than 0.05) differences among the cv. for stomatal frequency and trichome densities existed, no consistent pattern between insensitive and sensitive cv. was observed. O3-sensitive genotypes responded to 40 pphm O3 with similar or greater stomatal closure than the more insensitive genotypes, indicating that stomatal closure was not a primary mechanism for O3 insensitivity among the cv. evaluated. (AS) eng

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