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Revista Chapingo Serie Horticultura
Article . 2008 . Peer-reviewed
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Revista Chapingo Serie Horticultura
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DENSIDAD ESTOMATAL Y POTENCIAL HÍDRICO EN PLANTAS DE TOMATE (Physalis ixocarpa Brot.), PROPAGADAS POR CULTIVO DE MERISTEMOS

Authors: C. Bazaldúa-Muñoz; E. Ventura-Zapata; G. Salcedo-Morales; U. Maldonado Amaya; A. López García;

DENSIDAD ESTOMATAL Y POTENCIAL HÍDRICO EN PLANTAS DE TOMATE (Physalis ixocarpa Brot.), PROPAGADAS POR CULTIVO DE MERISTEMOS

Abstract

El tomate de cáscara es una Solanácea de origen mexicano, que se desarrolla en forma silvestre o cultivada. La propagación in vitro por cultivo de meristemos apicales es una alternativa para producir plantas en forma masiva y libres de patógenos, pero en muchas ocasiones la aclimatación ha sido el factor limitante para lograr este objetivo. Existen pocos reportes sobre micropropagación de esta especie y este es el primero en el que se evalúan los cambios en la densidad estomatal y el potencial hídrico durante la aclimatación de plantas de tomate, obtenidas por cultivo de meristemos. Plantas de 30 días de edad y de tamaño uniforme se colocaron en sistemas hidropónicos individuales, con cubiertas plásticas, durante siete semanas. Las cubiertas se abrieron gradualmente cada siete días y se registró la temperatura y la humedad relativa para calcular el potencial hídrico en la cámara de crecimiento y el sistema de aclimatización, en la sexta semana los valores de este parámetro fueron muy cercanos (-107.8 y -102.2 ± 4.91, respectivamente). Por otro lado, se evaluó la densidad estomatal a los 15, 30 y 45 días de aclimatación, se observaron diferencias significativas entre el haz y el envés de las hojas y entre edades de las plantas. Al relacionar los datos de potencial hídrico y densidad estomatal se observó una correlación elevada. Después del periodo de aclimatación la sobrevivencia de plantas fue del 100 %.

Keywords

micropropagación, potencial hídrico, Physalis ixocarpa Brot, Agriculture (General), Plant culture, Agrociencias, Aclimatación, densidad estomatal, S1-972, SB1-1110

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
gold