Mycorrhizal Inoculation Enhances Heat Resistance in Trifoliate Orange (Poncirus trifoliata L. Raf.) via Photosynthesis, Osmoregulatory Substances, the Antioxidant System, and the Expression of Related Genes
High-temperature stress can negatively influence citrus growth and fruit quality. Arbuscular mycorrhizal fungi (AMF) can enhance the absorption of water and nutrients, as well as improve heat resistance. In this experiment, we investigated the influence of heat stress (42 °C) on trifoliate orange (Poncirus trifoliata L...