Interesting techniques in barley breeding for drought and high temperature tolerance. I. Cell membranes stability

Authors

  • Águeda González
Keywords: barley, drought tolerance, membrane stability, osmotic stress

Abstract

In most areas of Spain, drought at the end of the barley growth cycle is common. The production of varieties better adapted to the reduced amount of water available at this time is therefore important; this is true for both traditional and ecological agricultural systems. The stability of the cell membrane is one of the most important selection indices for drought tolerance in cereals. The variability in this trait was examined in 14 barley genotypes, all raised in the field, by subjecting leaf samples to different temperatures and different concentrations of PEG. Very significant differences were seen between the genotypes (p<0.001). A temperature of 51ºC and a PEG concentration of 40% (p/v) were the best conditions for discerning these differences, achieving the best separation between genotypes while causing the least damage to the tissues.

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How to Cite
González, Águeda. (2008). Interesting techniques in barley breeding for drought and high temperature tolerance. I. Cell membranes stability. Agroecology, 3, 55–60. Retrieved from https://revistas.um.es/agroecologia/article/view/95521
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