Plant Biomass Productivity Under Abiotic Stresses in SAT Agriculture uri icon

abstract

  • The semi-arid tropics (SAT) include parts of 48 countries in the developing world: in most ofIndia, locations in south east Asia, a swathe across sub-Saharan Africa, much of southernand eastern Africa, and a few locations in Latin America (Fig 1). Semi-arid tropical regionsare characterized by unpredictable weather, long dry seasons, inconsistent rainfall, and soilsthat are poor in nutrients. Sorghum, millet, cowpea, chickpea, pigeonpea and groundnut arethe vital crops that feed the poor people living in the SAT.Environmental stresses represent the most limiting factors for agricultural productivity.Apart from biotic stresses caused by plant pathogens, there are a number of abiotic stressessuch as extremes temperatures, drought, salinity and radiation which all have detrimentaleffects on plant growth and yield, especially when several occur together (Mittler 2006)

publication date

  • 2011