Correction: Identification of QTL for Early Vigor and Stay-Green Conferring Tolerance to Drought in Two Connected Advanced Backcross Populations in Tropical Maize (Zea mays L.)

• Samuel Trachsel, 
• Dapeng Sun, 
• Felix M. SanVicente, 
• Hongjian Zheng, 
• Edgar Antonio Suarez, 
• Raman Babu, 
• Xuecai Zhang