Sun/shade conditions and seedling recruitment in a cactus

Sun/shade conditions and seedling recruitment in a cactus

Sun/shade con­di­tions and seed­ling recruit­ment in a cactus

Early life-history stages of cacti can bene­fit from the facil­it­at­ive effects of nurse plants that reduce solar radi­ation and water stress. Miranda-Jácome et al. con­duct a recip­rocal trans­plant exper­i­ment, coupled with the arti­fi­cial manip­u­la­tion of sun/shade con­di­tions, to test for the effects of local adapt­a­tion on ger­min­a­tion, seed­ling sur­vival and growth of the colum­nar cac­tus Pilosocereus leu­co­ceph­alus. They find that sig­ni­fic­ant local adapt­a­tion is mainly detec­ted under full sun­light con­di­tions, indic­at­ing that sun/shade acts as a select­ive agent in water-limited envir­on­ments. Facilitation provided by nurse plants in these envir­on­ments can atten­u­ate the pat­terns of local adapt­a­tion among plants bene­fit­ing from nurse plant effects.


Annals of Botany Office.

The Annals of Botany Office is based at the University of Leicester.

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