Physiological insights into soybean resistance against Phakopsora pachyrhizi infection potentiated by a phosphite combined with free amino acids

Considering the potential of Asian soybean rust (ASR), caused by Phakopsora pachyrhizi, to reduce soybean yield, different control strategies need to be used. This study investigated the potential of using a phosphite (30 and 20% of phosphorus and potassium, respectively) combined with L-α-free amino acids (Optimus®, Bioiberica, Spain) to reduce ASR symptoms and helping the plants to have a better photosynthetic performance during the fungal infection process.