Guerrero Prieto, V.; Rascón Chu, A.; Romo Chacón, A.; Berlanga Reyes, D.; Orozco Avitia, J.; Gardea Béjar, A.; Parra Quezada, R.; Sánchez Chávez, E. Short Communication. Effective Pollination Period in "RedChief" and "Golden Delicious" Apples (Malus Domestica Borkh). Span. j. agric. res. 2009, 7, 928-932.