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ARTICLE
Microbial inoculation of Parkinsonia praecox (Ruiz & Pav. ex Hook.) Hawkins for ecological restoration
Álvarez AS1, DR Pérez2
1 Environmental Microbiology Research and Services Laboratory, School of Health and Environmental Sciences, National University of Comahue, Buenos Aires 1400, 8300
Neuquén, Neuquén, Argentina.
2 Laboratory of Rehabilitation and Ecological Restoration of Arid and Semiarid Ecosystems, School of Health and Environmental Sciences, National University of Comahue,
Buenos Aires 1400, 8300 Neuquén, Neuquén, Argentina.
* Corresponding Author:Addresses correspondence to: Anahí Soledad Álvarez. Batistesa 2692 (8332) General Roca, Rio Negro, Argentina, e-mail:
Phyton-International Journal of Experimental Botany 2018, 87(all), 274-279. https://doi.org/10.32604/phyton.2018.87.274
Abstract
The use of microbial inocula for the restoration of severely
degraded arid environments is of great interest. This is because
there is a presumption that growth-favoring microorganisms can
facilitate the establishment of seedlings by increasing their ability
to withstand both the stress of transplantation in the case of nursery
seedlings, and the extreme conditions for natural establishment
imposed by the scarce, random and variable rainfall. In this work
we analyze the “slenderness index”- the height of the plant divided
by its diameter at the height cotyledon node- to analyze the effect
of treatments with microorganisms in the nursery. This variable is
a very feasible criterion for the selection of seedlings for ecological
restoration because it is based on information that is easily obtainable
in local nurseries. We evaluated this index in nursery seedlings
of
Parkinsonia praecox (Ruiz & Pav. ex Hook.) Hawkins, applying
the following treatments: inoculation with the nitrogen-fixing, symbiotic
bacterium
Bradyrhizobium japonicum (TB), inoculation with
the arbuscular mycorrhizal fungus
Glomus intraradices (TM), inoculation
with a mixture of B. japonicum and
G. intraradices (TBM),
and a control with no inoculation (C). We used top soil of mounds
from the Monte ecosystem as a base substrate. It is concluded that
the microbial inoculation of native soils of mounds does not provide
significant results applicable to the selection of nursery seedlings for
ecological restoration in this species. The possible importance of the
native soil and the inoculation of the microorganisms in the survival
and growth of the species are discussed.
Keywords
Cite This Article
AS, ., Pérez, D. (2018). Microbial inoculation of
Parkinsonia praecox (Ruiz & Pav. ex Hook.) Hawkins for ecological restoration.
Phyton-International Journal of Experimental Botany, 87(all), 274–279. https://doi.org/10.32604/phyton.2018.87.274