%0 Journal Article
%T Interactive Effects of Elevated [CO<sub>2</sub>] and Soil Water Stress on Leaf Morphological and Anatomical Characteristic of Paper Birch Populations
%A Anjala Pyakurel
%A Jian R. Wang
%J American Journal of Plant Sciences
%P 691-703
%@ 2158-2750
%D 2014
%I Scientific Research Publishing
%R 10.4236/ajps.2014.55084
%X <p style=\"text-align:justify;\">
	<span style=\"font-size:10.0pt;line-height:98%;font-family:;\" \"=\"\"><span style=\"font-family:Verdana;line-height:1.5;\">The leaf morphological and stomatal characteristics of
four paper birch (</span><i><span style=\"font-family:Verdana;line-height:1.5;\">Betula papyrifera</span></i><span style=\"font-family:Verdana;line-height:1.5;\"> Marsh) populations, grown at four treatment conditions of carbon dioxide [CO</span><sub><span style=\"font-family:Verdana;line-height:1.5;\">2</span></sub><span style=\"font-family:Verdana;line-height:1.5;\">]
and soil water levels were investigated to determine whether future increases
in atmospheric [CO</span><sub><span style=\"font-family:Verdana;line-height:1.5;\">2</span></sub><span style=\"font-family:Verdana;line-height:1.5;\">] and water deficit affect</span></span><span style=\"font-size:10pt;line-height:1.5;font-family:Verdana;\">ed</span><span style=\"font-size:10pt;line-height:1.5;font-family:Verdana;\"> the leaf
characteristics. The populations from Cussion Lake, Little Oliver, Skimikin and
Wayerton were grown for 12 weeks under ambient (360</span><span style=\"font-size:10.0pt;line-height:98%;font-family:;\" \"=\"\"> </span><span style=\"font-size:10pt;line-height:1.5;font-family:Verdana;\">ppm) and elevated (720</span><span style=\"font-size:10.0pt;line-height:98%;font-family:;\" \"=\"\"> </span><span style=\"font-size:10.0pt;line-height:98%;font-family:;\" \"=\"\"><span style=\"font-family:Verdana;line-height:1.5;\">ppm) [CO</span><sub><span style=\"font-family:Verdana;line-height:1.5;\">2</span></sub><span style=\"font-family:Verdana;line-height:1.5;\">] at
both high and low water levels. The populations significantly differed in leaf
area and stomatal characteristics due to the interaction effects of [CO</span><sub><span style=\"font-family:Verdana;line-height:1.5;\">2</span></sub><span style=\"font-family:Verdana;line-height:1.5;\">],
water levels and population differences. Most leaf morphological
characteristics and stomatal density varied due to the effects of [CO</span><sub><span style=\"font-family:Verdana;line-height:1.5;\">2</span></sub><span style=\"font-family:Verdana;line-height:1.5;\">]
and/or populations, but not due to the effect of water levels. Although
elevated [CO</span><sub><span style=\"font-family:Verdana;line-height:1.5;\">2</span></sub><span style=\"font-family:Verdana;line-height:1.5;\">] alone barely affected stomatal area of the birch
populations, simultaneous elevated [CO</span><sub><span
%K Carbon Dioxide Levels
%K Plasticity
%K Leaf Area
%K Stomatal Area
%K Stomatal Density
%K Pore Area and Guard Cell Width
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=43786