Ecophysiological responses of Opuntia to water stress under various semi–arid environments

摘要: In this review, information relating to the ecophysiological response of Opuntia robusta plants in wild populations and cultivated O. ficus–indica under various environments is presented. The succulence allowed maintain photosynthetical activity for five months after rains had come an end. highest values carbon gain were observed autumn at beginning winter, coinciding with fresh temperatures increase irradiance. combined effect photosynthetic plasticity, association mycorrhizal fungi avoidance tolerance mechanisms such as cessation formation both new cladode roots growing a rocky environment being exposed prolonged drought. development daughter cladodes on mother during dry spring season, lead physiological drought which was noticeable not only reduction photosynthesis chlorophyll content but also relative water content. Daughter caused stress period even well–watered their effects exacerbated by decrease