Improving Morphological and Physiological Parameters of Rose Flowers by Biofertilizer Application in a Hydroponic System

Document Type : Research paper

Authors

Department of Horticultural Sciences, Faculty of Agriculture and Environment Science, Arak University, Arak, Iran

Abstract

Yield quality and quantity in hydroponic greenhouses usually rely on optimum crop root health and effective nutrient mobility. This study evaluated the effects of applying arbuscular mycorrhizal fungi and biochar on different growth characteristics of commercial rose cultivars in a hydroponic cultivation system. In this experiment, Rosa hybrida cultivars were ‘Angelina’ and ‘Dolce Vita’. Treatments included concentrations of 0, 1.5, 3 and 6 g L-1 biochar, and 0 and 7 g L-1 of arbuscular mycorrhizal fungi as organic biofertilizers for the growth of rose plants. Biofertilizer application at 3 g L-1 biochar and 7 g L-1 arbuscular mycorrhizal fungi optimally increased flowering shoot diameter, flower diameter, flowering shoot length, and leaf phosphorus content. The ‘Dolce Vita’ cultivar responded more favorably to higher concentrations of arbuscular mycorrhizal fungi and biochar than the ‘Angelina’ cultivar in the hydroponic culture medium. Stem diameter, stem length, and flower diameter in both cultivars improved in response to higher biochar concentrations. The increased flowering shoot length resulted from root colonization by arbuscular mycorrhizal fungi and an enhanced nutrient uptake, especially phosphorus. A higher nutrient supply increased cell division and shoot growth.

Keywords

International Journal of Horticultural Science and Technology
Volume 12, Issue 1
January 2025
Pages 101-114

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History

  • Receive Date: 06 July 2023
  • Revise Date: 01 January 2024
  • Accept Date: 19 January 2024

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