K(superscript +) and proline are the main osmotic regulation substances and the main antioxidant enzymes are superoxide dismutase (SOD) and peroxidase (POD) in maize.

• 玉米以K(上标+)和脯氨酸为主要渗透调节物质，以超氧化物歧化酶(SOD)和过氧化物酶(POD)为主要抗氧化酶。