Amonio y sulfato en el crecimiento, actividad fisiológica y estado nutrimental de las plantas de lisianthus cv. ABC 1-2 rosado oscuro

• Hernández Pérez, Armando ^[1] ; Luis Alonso Valdez Aguilar ^[1] ; Juana Cruz García Santiago ^[1] ; Alonso Méndez López ^[1] ; José Antonio González Fuentes ^[1] ; Vicente Torres Olivar ^[2] ; Daniela Alvarado Camarillo ^[1] ; Fabiola Aureoles Rodríguez ^[1] ; Perpetuo Álvarez Vázquez ^[1]
  1. [1] Universidad Autónoma Agraria Antonio Narro

     Universidad Autónoma Agraria Antonio Narro

     México

     
  2. [2] Centro de Investigación en Química Aplicada
• Localización: Nova scientia, ISSN-e 2007-0705, Vol. 14, Nº. 29, 2022 (Ejemplar dedicado a: November 2022 - May 2023)
• Idioma: español
• Títulos paralelos:
  • Ammonium and Sulfate on growth, physiological activity and nutrimental status of lisianthus plants cv. ABC 1-2 deep rose
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• Resumen

  • Nitrogen (N) and Sulfur (S) are nutrients that have a strong uptake interaction. Therefore, the addition of these nutrients in the right ratio has a positive influence in plant development. This work is aiming to assess the effects of the interaction between NH4+ and SO42- at different concentrations, on the growth, physiology and macronutrient concentration in Lisianthus (Eustoma grandiflorum (Raf.) Shinn.) cv. Dark Pink ABC 1-2. The trial treatments included three concentrations of NH4+ (0, 2.5 and 5 meq L-1) and two concentrations of SO42- (7 y 10 meq L-1). The different concentrations of SO42- y NH4+ were based on Steiner’s nutrient solution modifications. We used 10-liter black polyethylene containers and perlite substrate with particles size of 0.2-0.5mm in diameter. The results showed that the stem diameter and dry biomass production of roots, stems, flowers and total biomass were higher with 5 meq L-1 of NH4+ and 7 meq L-1 of SO42-. On the other hand, total leaf dry weight and plant height were higher with 2.5 meq L-1 of NH4+ and 7 meq L-1 of SO42-. The plants showed the same behavior in terms of photosynthesis, transpiration and stomatal conductance. We obtained the highest concentration of N and P by applying 2.5 meq L-1 of NH4+ with 10 meq L-1 of SO42. Furthermore, Mg, and S concentrations were higher when we supplied 2.5 meq L-1 of NH4+ with the two concentrations of SO42; while K and Ca were higher when we increased the concentration of NH4+ with 7 meq L-1 of SO42-. We obtained the best growth rate, biomass production and nutrient concentration (K and Ca) in Lisianthus plants with 5 meq L-1 of NH4+/ 7 meq L-1 of SO42-; while physiological activity improved with 2.5 meq L-1 of NH4+ / 7 meq L-1 of SO42- ratio.