Barley caryopsis

The greatest portion of the lipids in barley kernel is nonpolar lipids (67-78%). The compositions of lipids in the embryonic axis, bran endosperm, and hull fractions of hulless barley caryopses were determined by Price and Parsons (124) (Table 27). Neutral lipids were predominant in all fractions. Phospholipid content of barley hull was lower than that of the bran endosperm and embryonic axis. The hull fraction contained the highest glycolipid amount among the grain fractions. 

Cochrane M P 1983 Morphology of the crease region in relation to assimilate uptake and water loss during caryopsis development in barley and wheat. Aust J Plant Physiol 10 473-491... 

Barley is classified according to the number of caryopsis per row in the spike (two or six rowed), and use (malting or feed). It is planted in ecosystems similar to wheat, although is more drought resistant and adapts better to poor and infertile soils. 

FIGURE 2.1 Photographs of the major cereals (a) maize (naked caryopsis) (b) wheat (naked caryopsis) (c) paddy rice (covered caryopsis) (d) barley (covered caryopsis) (e) sorghum (naked caryopsis) (f) rye (naked caryopsis). 

Oat production for direct food use is growing because the naked caryopsis or groat contains high amounts of both soluble and insoluble fiber. It is adapted to grow in ecosystems similar to wheat and barley. The optimum temperature fo" growth is 10°C to 12°C. 

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