@Article{phyton.2018.87.183,
AUTHOR = {Zepeda-Guzmán S, M Gómez-Romero, C Sosa-Aguirre, J Villegas},
TITLE = {Effects of Rhizoglomus intraradices, Azospirillum brasilense and plant growth regulators application on root architecture in barley (Hordeum vulgare L.)},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {87},
YEAR = {2018},
NUMBER = {all},
PAGES = {183--190},
URL = {http://www.techscience.com/phyton/v87nall/33944},
ISSN = {1851-5657},
ABSTRACT = {Changes in root architecture are a strategy used by
plants to explore the soil for available resources. The presence of beneficial
microorganisms in the rhizosphere as well as plant growth
regulators can cause changes in root development and promote the
availability of water and nutrients. The effect of microorganisms or
growth regulators on plant growth has been tested, but little is known
about the effect they have on the architecture of the root of Hordeum
vulgare L. Therefore the objective of this study was to evaluate the
effect of the application of Rhizoglomus intraradices, Azospirillum
brasilense, quercetin and epibrassinolide, alone or in combination,
on the root architecture and plant (shoot + root) biomass of barley.
The experiment was conducted in a growth chamber and a rhizotron
system was used as a case study to assess the root architecture. Each
of the barley seeds that germinated in the rhizotrons was inoculated
with 70 spores of R. intraradices or 2.5 x 107 CFU/mL of A. brasilense in a 1 mL suspension. Quercetin and/or epibrassinolide were
applied in 5 mL of solution at a concentration of 10 μM, at 0, 5 and
8 days. The results showed that the growth promoter epibrassinolide
affected barley root architecture by increasing the number, but
decreasing the length, of seminal roots. It also promoted the early
onset of lateral roots. Quercitin, applied alone or combined, had a
significant effect to increase the number of lateral roots. Although
changes were observed in the architecture of the root, barley biomass
did not show significant differences in this evaluation period. The
application of microorganisms did not produce significant changes
in the variables evaluated.},
DOI = {10.32604/phyton.2018.87.183}
}