CO2 improves tolerance of barley to salinity


	CO2 improves tolerance of barley to salinity

kmcolo

7-9-2008 9:04 AM

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tags:

global warming, climate change, carbon, co2, agriculture, food

kmcolo says:

Global warming means more beer! Maybe I'll rethink my position...

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/a63ece34-3f52-4a18-85c3-0d74e00cadf6/12C1F8A9-2059-4984-B4E7-7EF41F51DE18/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://esciencenews.com/articles/2008/07/07/co2.increase.atmosphere.augments.tolerance.barley.salinity" href="http://esciencenews.com/articles/2008/07/07/co2.increase.atmosphere.augments.tolerance.barley.salinity" style="font-size: 11px;">esciencenews.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://esciencenews.com/articles/2008/07/07/co2.increase.atmosphere.augments.tolerance.barley.salinity">In future, climate change will bring an increase in salty surfaces on the Earth and in the concentration of CO<SUB>2</SUB> in the atmosphere. However, this higher CO<SUB>2</SUB> has some positive effects on the physiology of barley plants and increases its tolerance to salinity.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://esciencenews.com/articles/2008/07/07/co2.increase.atmosphere.augments.tolerance.barley.salinity"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/esciencenews.com/img/975C4472-B0F5-4085-AB0E-77099B5FB81B" alt="The author of the Ph.D., Usue Pérez-López." /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://esciencenews.com/articles/2008/07/07/co2.increase.atmosphere.augments.tolerance.barley.salinity">As with other plants, the correct development of barley depends on a suitable balance between the availability of water, nutrients and CO<SUB>2</SUB>. Nevertheless, it is predicted that there will be an increase in salinity in the soil in future, causing various imbalances which will result in a reduction in the growth of barley.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://esciencenews.com/articles/2008/07/07/co2.increase.atmosphere.augments.tolerance.barley.salinity">she concluded that CO<SUB>2</SUB> does not mitigate the accumulation of sodium in the tissues, despite the plant showing greater growth and less transpiration.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://esciencenews.com/articles/2008/07/07/co2.increase.atmosphere.augments.tolerance.barley.salinity"><P>In short, Dr. Pérez-López's research concludes that the increase in CO<SUB>2</SUB> enables greater growth of barley plants subject to saline conditions, thanks to the improvement in their hydric state and turgescence, but, above all, to the increase in photosynthesis.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/12C1F8A9-2059-4984-B4E7-7EF41F51DE18/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>