Resumen

GERVASIO, Gedson; JEREZ-MOMPIE, Eduardo; MORALES, Belquis  y  CARIDAD-NAPOLES, María. Selection of a promoting rhizobacteria of growth in papa (Solanum tuberosum L.). cultrop [online]. 2019, vol.40, n.2  Epub 01-Jun-2019. ISSN 1819-4087.

The use of plant growth promoting rhizobacteria has beneficial effects on crops, so the objective of this work was to select a strain of Rhizobium genus able to stimulate growth in potatoes. To this end, work was carried out under semicontrolled conditions and the use of two strains (C1: Rhizobium etli CE-3 and C2: Bradyrhizobium elkani ICA 8001) as well as two doses of each (D1: 3 μL and D2: 6 μL) applied in the niche in which the tuber was placed at the time of planting. Through a completely randomized design, five treatments were distributed, including the control not inoculated and the use of strains and doses, with ten repetitions for each one. In any case no chemical fertilization was applied. Containers of six-liter capacity filled with red Ferralitic Eutric soil were used. The evaluations were made at 40 days after plantation and consisted in determining the height of the plants, the number of stems, the number of stolons emitted by tubers, the average number of leaves per stem, the leaf surface and the SPAD units determined in two moments. In all the evaluated variables, the strain Bradyrhizobium elkani ICA 8001, was the one that favored the best result with significant differences respect to the control.

Palabras clave : Rhizobium; height of the plant; number of stems; leaf area; stolons.

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