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<p>Cyanobacterial inoculation has been a successful technology for improving paddy plant growth and yield. However, its deployment beyond paddy cultivation is very limited. Several factors, including the timing of inoculation, have affected the beneficial effect of cyanobacteria on plant growth. Hence, in the present investigation, the timing of cyanobacterial inoculation was evaluated for its effectiveness in enhancing the growth and productivity of the medicinal plant, <i>Zingiber officinale.</i> The live culture of the cyanobacterium, <i>Nostoc</i> sp. HNBGU 006 was inoculated in pot soil at three different stages: before sowing (BSI), after sowing (ASI), and both before and after sowing (BSI + ASI) with rhizomes, and various plant growth parameters were measured. A multicriteria decision method (MCDM) approach was used through Preference Ranking Organization Method for Enrichment of Evaluation and Geometrical Analysis for Interactive Aid (PROMETHEE-GAIA) software for deciding the best timing, as cyanobacterial inoculation at different times caused diverse effects on each plant growth parameter. PROMETHEE-GAIA suggests that the BSI + ASI treatment was the best for cultivating <i>Z. officinale</i>, enhancing rhizome yield by 90% and gingerol yield by 10%, and improving soil health by increasing available nitrogen, phosphorus, potassium, and organic carbon. Thus, the present study seems to be one of the first systematic efforts to improve the yield and bioactive components of <i>Z. officinale</i> by optimizing the timing of cyanobacterial inoculation through an MCDM approach. This strategy has the potential to reduce dependence on chemical inputs while promoting the long-term sustainability of the agricultural system.</p>

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Effect of cyanobacterization with Nostoc sp. HNBGU 006 on yield and bioactive components of Zingiber officinale

  • 期刊论文

  • 发表日期：

    2026年7月6日

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  • Shashi Uniyal,
  • Preeti Singh,
  • Rahul Negi,
  • Rahul Kunwar Singh

摘要

Cyanobacterial inoculation has been a successful technology for improving paddy plant growth and yield. However, its deployment beyond paddy cultivation is very limited. Several factors, including the timing of inoculation, have affected the beneficial effect of cyanobacteria on plant growth. Hence, in the present investigation, the timing of cyanobacterial inoculation was evaluated for its effectiveness in enhancing the growth and productivity of the medicinal plant, Zingiber officinale. The live culture of the cyanobacterium, Nostoc sp. HNBGU 006 was inoculated in pot soil at three different stages: before sowing (BSI), after sowing (ASI), and both before and after sowing (BSI + ASI) with rhizomes, and various plant growth parameters were measured. A multicriteria decision method (MCDM) approach was used through Preference Ranking Organization Method for Enrichment of Evaluation and Geometrical Analysis for Interactive Aid (PROMETHEE-GAIA) software for deciding the best timing, as cyanobacterial inoculation at different times caused diverse effects on each plant growth parameter. PROMETHEE-GAIA suggests that the BSI + ASI treatment was the best for cultivating Z. officinale, enhancing rhizome yield by 90% and gingerol yield by 10%, and improving soil health by increasing available nitrogen, phosphorus, potassium, and organic carbon. Thus, the present study seems to be one of the first systematic efforts to improve the yield and bioactive components of Z. officinale by optimizing the timing of cyanobacterial inoculation through an MCDM approach. This strategy has the potential to reduce dependence on chemical inputs while promoting the long-term sustainability of the agricultural system.