Calcium Biofortication of Crops
More than half of the world’s population is decient in calcium (Ca), iron (Fe), iodine (I), magnesium (Mg), selenium (Se), or zinc (Zn) (Graham et al. 2007; White and Broadley 2009). The consumption of plants, directly or via livestock, containing inadequate concentrations of particular minerals causes these deciencies. Agronomic and genetic strategies can increase the delivery of bioavailable minerals (Figure 17.1) (Morris et al. 2008; White and Broadley 2009). Although the focus is predominately on Ca, the framework discussed here should be generally applicable to boosting the levels of other elements in agriculturally important crops.