SciELO - Scientific Electronic Library Online

 
vol.18 issue2Changes in regional grain yield responses to chemical fertilizer use in China over the last 20 yearsDiatomaceous earth as source of silicon on the growth and yield of rice in contrasted soils of Southern India author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Journal of soil science and plant nutrition

On-line version ISSN 0718-9516

Abstract

TIME, Alson; GARRIDO, Marco  and  ACEVEDO, Edmundo. Water relations and growth response to drought stress of Prosopis tamarugo Phil. A review. J. Soil Sci. Plant Nutr. [online]. 2018, vol.18, n.2, pp.329-343. ISSN 0718-9516.  http://dx.doi.org/10.4067/S0718-95162018005001103.

Understanding the physiological mechanisms of response that allow plants to survive under suboptimal conditions such as drought stress is of particular interest, because of global climate change that threat the suitability of most terrestrial habitats for plant growth, as well as habitat disturbance of desert plants due to water extraction for human supply. Prosopis tamarugo Phil. of the Pampa del Tamarugal is frequently subjected to drought stress due to groundwater extraction for urban areas, mining industry and agriculture supply. The aim of this review is to analyze information concerning the plant growth response to drought stress and specifically P. tamarugo water relations and growth response to drought stress. P. tamarugo, being a desert plant, has physiological mechanisms that permit its adaptation to extreme environmental conditions like the Pampa del Tamarugal. It has mechanisms as osmotic adjustment, that allow some growth through osmoregulation; changes the angle of its leaflets to avoid high levels of radiation in the afternoon; partially closes its stomata to decrease water loss; maintains high stomata conductance to deal with increasing temperature and atmospheric demand.

Keywords : Water potential; drought; water depletion; osmotic potential.

        · text in English     · English ( pdf )