Olvera-Carrillo, Y; Mendez, I; Marquez-Guzman, J; Barradas, VL; Huante, P; Orozco-Segovia, A; Sánchez-Coronado, ME
(2009)
We studied in Opuntia tomentosa the effect of plant shade (orientation and distance), and the place where the seeds remained before germination. Seeds were collected in 1998 and a) sown immediately on soil (non-buried ...