Response of the Mexican clone of potato 99-39 to potassium in hydroponics and greenhouse

Authors

  • Francisco Xavier Flores Gutiérrez Programa en Ciencias Agropecuarias y Recursos Naturales-Universidad Autónoma del Estado de México-Campus Universitario Centro Universitario Tenancingo. Carretera Tenancingo-Villa Guerrero km 1.5, Santa Ana Ixtlahuatzingo, Tenancingo, Estado de México. CP. 52400. Tel. 01(714) 1407724
  • Román Flores López Sitio Experimental Metepec-INIFAP. Carretera Toluca-Zitácuaro km. 4.5, Vialidad Adolfo López Mateos, Col. San José Barbabosa, Zinacantepec, Estado de México. CP. 51350. Tel 01(55) 38718700, ext. 85638
  • Martha Elena Mora Herrera Programa en Ciencias Agropecuarias y Recursos Naturales-Universidad Autónoma del Estado de México-Campus Universitario Centro Universitario Tenancingo. Carretera Tenancingo-Villa Guerrero km 1.5, Santa Ana Ixtlahuatzingo, Tenancingo, Estado de México. CP. 52400. Tel. 01(714) 1407724
  • Omar Franco Mora Centro de Investigación y Estudios Avanzados en Fitomejoramiento-Facultad de Ciencias Agrícolas-Universidad Autónoma del Estado de México. Campus Universitario ‘El Cerrillo’. El Cerrillo Piedras Blancas, Toluca, Estado de México. CP. 50200. Tel. 01(722) 2965529

DOI:

https://doi.org/10.29312/remexca.v9i6.1578

Keywords:

Solanum tuberosum, nutritive solution, prebasic seed

Abstract

In order to determine the effect and optimum dose of potassium in the production of minitubers of the Mexican clone of potato 99-39, experiments were established in July and September 2015, where concentrations of 0 (absolute control), 150, were tested. 250 (commercial control), 350, 450 and 550 mg L-1 in nutrient solution in hydroponic system. The results indicated that the highest plant height and leaf area index were found in the treatments with the highest concentration of K. The dose of 350 mg L-1 of K produced 19% more tubers with a diameter equal to or greater than 15 mm per plant. Than the commercial witness and 194% more than the absolute witness. The second order equation (R2= 0.94) allowed us to estimate that the optimal dose for potato clone 99-39 was 400 mg L-1 potassium, which can produce up to 20.67 minitubers per plant. There was statistical significance in the interaction date x dose for tuber production per plant and for the harvest index, with higher production in july planting than in autumn winter season; conversely, it was found that the harvest index was higher in the autumn-winter season. High concentrations of potassium during the whole crop cycle promoted the production of a greater number of tubers.

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Published

2018-09-24

How to Cite

Flores Gutiérrez, Francisco Xavier, Román Flores López, Martha Elena Mora Herrera, and Omar Franco Mora. 2018. “Response of the Mexican Clone of Potato 99-39 to Potassium in Hydroponics and Greenhouse”. Revista Mexicana De Ciencias Agrícolas 9 (6). México, ME:1123-35. https://doi.org/10.29312/remexca.v9i6.1578.

Issue

Vol. 9 No. 6 (2018)

Section

Articles

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