Exogenous SA or 6-BA maintains photosynthetic activity in maize leaves under high temperature stress
With global warming, high-temperature (HT) stress has become a major abiotic stress for crops, in particular summer maize in China.Photosynthesis is sensitive to HT.Salicylic acid (SA) and 6-benzyladenine (6-BA) can improve the adaptation of plants to various biotic and abiotic stresses.However, their contribution to maintaining photosynthetic acti