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<p>The failure of forest restoration may be linked to the absence of arbuscular mycorrhizal fungi (AMF) propagules in degraded soils. Incorporating AMF into substrates during seedling production represents a viable strategy for planting native trees. This study evaluated six native species, with seedlings grown in substrates ether inoculated with and without an AMF mix, transplanted into a degraded Atlantic Forest pasture. Growth and physiological traits were assessed after 6&#xa0;months (dry season) and 12&#xa0;months (rainy season). Substrate and time influenced morphophysiological variables, and AMF sporulation was higher in the dry season. However, seasonal effects on most traits were minimal, challenging the notion that low water reduces photosynthetic efficiency and AMF activity. No performance differences were found between substrates, likely due to early AMF colonization during nursery growth. Ensuring consistent mycorrhizal colonization in seedlings is crucial for successful reforestation.</p>

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Seedling production of native tree species with arbuscular mycorrhizal fungi inoculation to restore degraded pasture

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月26日

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  • Karen Mirella Souza Menezes,
  • Glauciane da Silva Rodrigues,
  • Sandro Lúcio Silva Moreira,
  • Ésio de Castro Paes,
  • Marliane de Cássia Soares da Silva,
  • José Maria Rodriguez da Luz,
  • Haroldo Nogueira de Paiva,
  • Eduardo Gusmão Pereira,
  • Maria Catarina Megumi Kasuya

摘要

The failure of forest restoration may be linked to the absence of arbuscular mycorrhizal fungi (AMF) propagules in degraded soils. Incorporating AMF into substrates during seedling production represents a viable strategy for planting native trees. This study evaluated six native species, with seedlings grown in substrates ether inoculated with and without an AMF mix, transplanted into a degraded Atlantic Forest pasture. Growth and physiological traits were assessed after 6 months (dry season) and 12 months (rainy season). Substrate and time influenced morphophysiological variables, and AMF sporulation was higher in the dry season. However, seasonal effects on most traits were minimal, challenging the notion that low water reduces photosynthetic efficiency and AMF activity. No performance differences were found between substrates, likely due to early AMF colonization during nursery growth. Ensuring consistent mycorrhizal colonization in seedlings is crucial for successful reforestation.