Publication: Cadmium affects the regeneration of the leafy vegetable Talinum portulacifolium stem cuttings in nutrient solution
Authors
Muthukumar, Thangavelu ; Dinesh-Babu, Selvam
item.page.secondaryauthor
item.page.director
Publisher
Universidad de Murcia. Servicio de publicaciones
publication.page.editor
publication.page.department
Description
Abstract
Investigamos el efecto de varias concentraciones (0,0-5,0 ppm) de
cadmio (Cd) en la capacidad de regeneración; las características
morfológicas y la acumulación de Cd en los esquejes de tallo de la
verdura de hoja Talinum portulacifolium cultivada en cultivo hidropónico. El Cd retrasó la brotación de los esquejes en un 7%, la callosidad en un 8% y el enraizamiento en un 38%. Las diferentes
concentraciones de Cd afectaron significativamente a los pesos
fresco y seco de las partes de la planta, excepto las raíces. La
acumulación de Cd fue mayor en los tallos que en las hojas (2,22
vs 0,57 ppm). El índice de tolerancia calculado osciló entre el 59%
y el 88%. Basándose en las observaciones, se concluyó que el Cd
interfiere con la regeneración de los esquejes de tallo de T. portulacifolium e implica preocupación sobre el consumo y el uso terapéutico de esta hortaliza de hoja que crece en suelos contaminados.
We investigated the effect of various concentrations (0.0-5.0 ppm) of cadmium (Cd) on the regeneration ability; morphological characteristics and Cd accumulation in the leafy vegetable Talinum portulacifolium stem cuttings grown in hydroponic culture. Cd delayed sprouting of stem cuttings by 7%, callusing by 8% and rooting by 38%. Different Cd concentrations significantly affected fresh and dry weight of plant parts except roots. Accumulation of Cd was more in the stems than in leaves (2.22 vs 0.57 ppm). The calculated tolerance index ranged from 59% to 88%. Based on the observations it was concluded that Cd interferes with the regeneration of T. portulacifolium stem cuttings and imply concerns on the consumption and therapeutic use of this leafy vegetable growing on polluted soils.
We investigated the effect of various concentrations (0.0-5.0 ppm) of cadmium (Cd) on the regeneration ability; morphological characteristics and Cd accumulation in the leafy vegetable Talinum portulacifolium stem cuttings grown in hydroponic culture. Cd delayed sprouting of stem cuttings by 7%, callusing by 8% and rooting by 38%. Different Cd concentrations significantly affected fresh and dry weight of plant parts except roots. Accumulation of Cd was more in the stems than in leaves (2.22 vs 0.57 ppm). The calculated tolerance index ranged from 59% to 88%. Based on the observations it was concluded that Cd interferes with the regeneration of T. portulacifolium stem cuttings and imply concerns on the consumption and therapeutic use of this leafy vegetable growing on polluted soils.
publication.page.subject
Callo , Crecimiento , Metales pesados , Hidropónico , Enraizamineto , Índice de tolerancia , Callus , Growth , Heavy Metals , Hydroponics , Rooting , Tolerance index
Citation
item.page.embargo
Collections
Ir a Estadísticas
Este ítem está sujeto a una licencia Creative Commons. Licencia Creative Commons