Effect of waterlogging in barley during the seedling stage
1987
Wignarajah, K. (North Wales Univ. (UK). Centre for Arid Zone Studies)
This paper discusses the regulation of ionic levels by seedlings of waterlogging sensitive and tolerant cultivars of barley during periods of waterlogging and recovery from the waterlogging stress. The tolerant cv Atlas-57 showed higher level of Na+ in the shoot than the sensitive cv Hispont and it appears that barley could maintain normal growth even when fairly high concentrations of sodium are found in the leaves. There was no significant differences in the uptake and transport to the shoot of K+ ions by the two cultivars. However, significantly higher rates of uptake and transport to the shoot of Cl- ions were found in the sensitive cv Hispont. It is suggested that the sensitivity of barley to waterlogging may be associated with the inability to regulate the uptake and transport of Cl- ions during the early stages of waterlogging stress, and that this physiological response could be used to screen barley cultivars for their ability to withstand waterlogging stress
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