Morphology and biomass variations in root system of young tomato plants (Solanum sp.)

Main Article Content

Marta A. Álvarez Gil

Abstract

The scarce exploitation of genotypic variability
present in plant roots is an attractive breeding choice with
regard to abiotic stresses and supports the objective of this
work, which is to identify genotypic variation in root system
traits of tomato genotypes (Solanum sp.). Thus, five tomato
genotypes were studied: the commercial hybrid cultivar
Jaguar (S. lycopersicum), Pera, Volgogradiskij and PE-47
entry (S. pennellii), which were collected in Peru, and the
interspecific hybrid PeraxPE-47. Plants were grown in
hydroponics for 26 days since germination; their roots were
extracted and images were digitalized on scanner to evaluate
total length, average diameter, the projected area and root
length, following the categories per diameter of the whole
root system through software Win Rhizo Pro 2003. The dry
mass of roots and aerial parts was also recorded. Results
indicated that genotypes differed in morphology, length
according to diameter, root system spatial configuration and
biomass, mainly with respect to the wild salinity resistant
species PE-47. The interspecific hybrid PxPE-47 could be
used as a rootstock to increase salt tolerance of susceptible
cultivars.

Article Details

How to Cite
Álvarez Gil, M. A. (2016). Morphology and biomass variations in root system of young tomato plants (Solanum sp.). Cultivos Tropicales, 37(2), 96–101. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/1235
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Original Article