Field performance of a liquid formulation of Azospirillum brasilense on dryland wheat productivity

By M. Diaz-Zorita, M. V. Fernández-Canigia. 2009

217 citations recorded by the source corpus.

Abstract The beneficial effects of inoculating with Azospirillum brasilense on crop productivity have been widely described, but extensive use in typical agricultural field environments is scarcely documented. The objective of this study was to quantify the productivity of wheat ( Triticum aestivum L.) whose seed was inoculated with a liquid formulation containing Azospirillum brasilense INTA Az-39 strain under typical dryland farming conditions. The study was performed in the 2002–2006 growing seasons, evaluating inoculated and non-inoculated seed at 297 experimental locations in the Pampas region of Argentina. The inoculated crops exhibited more vigorous vegetative growth, with both greater shoot and root dry matter accumulation (12.9 and 22.0%, respectively). The inoculation increased the number of harvested grains by 6.1%, and grain yield by 260 kg ha −1 (8.0%). Positive responses were determined in about 70% of the sites, depending mostly on the attainable yield and independently of fertilization and other crop and soil management practices. In general, more response to inoculation was observed in the absence of major crop growth limitations, suggesting the complementary contribution of the Azospirillum brasilense treatment to more efficiently developing higher yielding wheat.

Subfields: Agronomy and Crop Science, Plant Science, Soil Science

View Paper: https://www.semanticscholar.org/paper/b225f5b505d3769ff9a676d35a5241ed9355c72e

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Citations in the corpus

Chapter Two – How the Plant Growth-Promoting Bacterium Azospirillum Promotes Plant Growth—A Critical Assessment (2010, unknown): “There are three facts that are beyond dispute, each with a reservation: (1) Most Azospirillum strains can fix nitrogen but only a fraction of it, if any at all, is transferred to the plant; (2) Many strains, but not all, produce several phytohormones in vitro and also a few in association with plant”
Advances in plant growth-promoting bacterial inoculant technology: formulations and practical perspectives (1998–2013) (2014, background): “In practice, inoculant quality can be under governmental regulations as happens in The Netherlands, Thailand, Russia, Canada, France, and Australia (voluntarily) or leave product quality and rate of application to the discretion of the manufacturer, as happens in the United States, Mexico, Argentina”
The potential contribution of plant growth-promoting bacteria to reduce environmental degradation – A comprehensive evaluation (2012, background): “brasilense has proved to be an outstanding PGPB in hundreds of agricultural studies and was recently commercialized to use as an inoculant in crop cultivation (Díaz-Zorita and Fernández-Canigia, 2009).”
Everything you must know about Azospirillum and its impact on agriculture and beyond (2020, background): “…during the early growth stages of plants with greater and more consistent responses seen in the root and shoot dry matter production and a minimal contribution to the grain yield components during the seed filling period (Díaz-Zorita and Fernández-Canigia 2009; Veresoglou and Menexes 2010).”