The agronomic characters and SRAP genetic diversity analysis of 21 introduced male sterile lines of brown midrib forage sorghum

• Shang-xiong Zhang, 
• Zhao Jing, 
• Fei-fei Wu, 
• Rui-tao Luan, 
• Jian-li Wang, 
• Yu-xia Zhang, 
• Xian-guo Wang