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<p>Current agricultural practices need to be amended to increase sustainability. Notable issues of climate change, food insecurity, and increasing global population strain on plant production must be addressed and enhanced. Fertilizer use and extraction need to be strengthened as current means are environmentally damaging. Microalgae biostimulants have gained popularity as fertilizers, though cyanobacterial inoculations could also contribute to nutrient additions. This study examines the effects of <i>Anabaena variabilis</i> as a biostimulant, compared to <i>Chlorella vulgaris,</i> on the germination and vegetative vigour of <i>Monstera deliciosa</i> Liebm. In the germination trials, inoculums consisted of living 2.5% and 5.0% dry weight concentrations of <i>C. vulgaris</i> and <i>A. variabilis</i>. In the vegetative vigour trials, these were amended to 2.5% dry weight concentrations of pasteurized and living <i>A. variabilis,</i> and 2.5% dry weight pasteurized <i>C. vulgaris</i>. There was no difference in time to coleoptile development, root length, or leaf size in <i>M. deliciosa</i> seedlings inoculated with either biostimulant;&#xa0;where any negative effect of <i>A. variabilis</i> existed in early developmental stages, the effect dissipated as the plants grew. In both assays, the lack of significant differences between <i>A. variabilis</i> and <i>C. vulgaris</i> suggests biostimulants are interchangeable for <i>M. deliciosa&#xa0;</i>growth and development. In ornamental plant development, cyanobacteria, normally waste products, should be further investigated for sustainability in plant production and nutrient recovery.</p>

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Comparing Chlorella vulgaris and Anabaena variabilis as biostimulants in Monstera deliciosa Liebm. cultivation

  • 期刊论文

  • 发表日期：

    2025年9月19日

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  • Bryant M. Serre,
  • Simran Kaur,
  • Samuel K. P. Druif,
  • Lesley G. Campbell

摘要

Current agricultural practices need to be amended to increase sustainability. Notable issues of climate change, food insecurity, and increasing global population strain on plant production must be addressed and enhanced. Fertilizer use and extraction need to be strengthened as current means are environmentally damaging. Microalgae biostimulants have gained popularity as fertilizers, though cyanobacterial inoculations could also contribute to nutrient additions. This study examines the effects of Anabaena variabilis as a biostimulant, compared to Chlorella vulgaris, on the germination and vegetative vigour of Monstera deliciosa Liebm. In the germination trials, inoculums consisted of living 2.5% and 5.0% dry weight concentrations of C. vulgaris and A. variabilis. In the vegetative vigour trials, these were amended to 2.5% dry weight concentrations of pasteurized and living A. variabilis, and 2.5% dry weight pasteurized C. vulgaris. There was no difference in time to coleoptile development, root length, or leaf size in M. deliciosa seedlings inoculated with either biostimulant; where any negative effect of A. variabilis existed in early developmental stages, the effect dissipated as the plants grew. In both assays, the lack of significant differences between A. variabilis and C. vulgaris suggests biostimulants are interchangeable for M. deliciosa growth and development. In ornamental plant development, cyanobacteria, normally waste products, should be further investigated for sustainability in plant production and nutrient recovery.