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Idesia (Arica)

versión On-line ISSN 0718-3429

Resumen

GRODZKI OLIVEIRA, Figueiredo Guilherme et al. Sugarcane clones inoculated with five species of promoting growth plant bacteria. Idesia [online]. 2017, vol.35, n.2, pp.71-77.  Epub 13-Mayo-2017. ISSN 0718-3429.  http://dx.doi.org/10.4067/S0718-34292017005000021.

The utilization of Plant Growth Promoting Bacteria (PGPB) in non-leguminous plants as sugarcane have been intensified along the last years targeting mainly the increase in productivity and the appeal for more sustainable agriculture. The genotypes selection that have closer affinity with PGPB strains may be the way to optimize sugarcane production and to boost sustainable agriculture in agroenergetics sector. In this way, the aim of the work was to test the response of five sugarcane clones and RB867515 cultivar with mix PGPB inoculation. The experiment was conducted in greenhouse for 45 days long in completely randomized design factorial 6x2, with six sugarcane genotypes, which five of them derived from previous PGPB works and the treatments were control and inoculated, being first one without PGPB application and the second one with 1-bud sett immersed in bacterial solution, evaluating shoot and roots of plants. The only significant variable was height of plants for all applying treatments, and genotypes were statistically different among them in all estimated parameters. There was treatment x genotype interaction, except the root morphologic analysis, of which only showed difference within genotypes. However, there was not standard response of inoculation among the genotypes, where clones 7 and 8 showed potential in PGPB studies, and the RB867515 was non-responsive to the in-oculation. Posterior tests are necessary with these genotypes evaluating bacteria population and late response of inoculated plants.

Palabras clave : Saccharum spp; PGPB; root morphology; genotypes.

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