In Cactaceae, the interception of photosynthetic active radiation (PAR) differs among opposite sides of the stem, determining the availability of resources for reproduction, since it has been suggested that there is no translocation of resources between ribs. It has been shown that the production of reproductive structures in columnar cacti...
Orientation of reproductive and vegetative structures in cacti optimizes the caption of photosynthetically active radiation (PAR) favoring the branch growth and development. It minimizes the excessive warming that could affect the photosynthetic system, and exposes the floral buds to an adequate temperature for their development, thus favoring pollination. This study...
Myrtillocactus geometrizans (Mart. ex Pfeiff.) Console, es un cactus columnar arborescente cuyas flores y frutos muestran una orientación preferencial hacia el sur. El presente proyecto de investigación aborda el efecto de la orientación de las flores en el éxito de la polinización en esta especie. El estudio tuvo como objetivos:...
Ariocarpus kotschoubeyanus (Lem.) K. Schum., is a threatened and endemic species of Mexico. Features life story of Ariocarpus kotschoubeyanus are presented from a demographic and reproductive view this work. In the population Barrio Don Lucas, the population density was 0.03 ind/m² , while the density in the study plots was...
The equatorial orientation of fruits is present in diverse cacti. In some species from the north hemisphere, have reported they produce bigger fruits and more seeds in southern branches and/or ribs. If these are more attractive for frugivores, we expect them show a preference for them in comparison with those...
Turbinicarpus horripilus (Lem) V. John y Riha es una cactácea globosa microendémica de la Reserva de la Biosfera Barranca de Metztitlán (Hidalgo). La especie se encuentra en el Apéndice l de CITES y está señalada como especie vulnerable (VU) en la Lista Roja de la UICN. Hasta la fecha sólo...