Effects of Arthrobacter psychrolactophilus B7 on the growth and antioxidant defense system in perennial ryegrass under shade stress

• LIU Peng, 
• CUI Tongtong, 
• SUN Pengyue, 
• ZHOU Yu, 
• ZHANG Zhiwei, 
• YU Xinrong, 
• HU Tianming, 
• FU Juanjuan