Scholarlink

<p>Elevated CO<sub>2</sub> (eCO<sub>2</sub>) levels can alter plant physiology by reducing stomatal density, weakening transpiration, enhancing photosynthesis, accelerating growth, increasing the carbon-to-nitrogen ratio, and lowering nitrogen content. This study investigated the combined effects of eCO<sub>2</sub> stress and <i>Bradysia impatiens</i> infestation on Chinese chive (<i>Allium tuberosum</i>) under controlled CO<sub>2</sub> growth chamber conditions. A factorial experimental design was implemented, incorporating two CO<sub>2</sub> concentration levels and three fungus gnat infestation intensities. The results revealed significant increases in leaf width, leaf thickness, soluble sugar and chlorophyll <i>b</i> levels in Chinese chive plants under both eCO<sub>2</sub> and ambient CO<sub>2</sub> (aCO<sub>2</sub>) conditions, irrespective of <i>B. impatiens</i> infestation status. Conversely, soluble protein content, chlorophyll <i>a</i>, and total chlorophyll concentrations showed significant reductions under both CO<sub>2</sub> regimes, regardless of <i>B. impatiens</i> infestation. These findings demonstrate that the growth and physiological responses of Chinese chive are substantially influenced by insect infestation under projected eCO<sub>2</sub> scenarios. This research provides valuable insights for developing adaptive strategies against <i>B. impatiens</i> infestations in the context of atmospheric change, contributing to sustainable agricultural practices under future climate conditions.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Physiological and growth responses of Chinese chives (Allium tuberosum) to elevated CO2 concentrations and infestation by fungus gnat (Bradysia impatiens)

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年9月26日

查看全文
  • Yu-Ping Gou,
  • Yongji Song,
  • Liang Mao,
  • Huaian Yang,
  • Yiru Ge

摘要

Elevated CO2 (eCO2) levels can alter plant physiology by reducing stomatal density, weakening transpiration, enhancing photosynthesis, accelerating growth, increasing the carbon-to-nitrogen ratio, and lowering nitrogen content. This study investigated the combined effects of eCO2 stress and Bradysia impatiens infestation on Chinese chive (Allium tuberosum) under controlled CO2 growth chamber conditions. A factorial experimental design was implemented, incorporating two CO2 concentration levels and three fungus gnat infestation intensities. The results revealed significant increases in leaf width, leaf thickness, soluble sugar and chlorophyll b levels in Chinese chive plants under both eCO2 and ambient CO2 (aCO2) conditions, irrespective of B. impatiens infestation status. Conversely, soluble protein content, chlorophyll a, and total chlorophyll concentrations showed significant reductions under both CO2 regimes, regardless of B. impatiens infestation. These findings demonstrate that the growth and physiological responses of Chinese chive are substantially influenced by insect infestation under projected eCO2 scenarios. This research provides valuable insights for developing adaptive strategies against B. impatiens infestations in the context of atmospheric change, contributing to sustainable agricultural practices under future climate conditions.