what is the funtion of the Root system
Check these sites.
http://science.jrank.org/pages/5924/Root-System.html
http://facweb.furman.edu/~lthompson/bgy34/plantanatomy/plant_root.htm
http://science.jrank.org/pages/5924/Root-System.html
http://facweb.furman.edu/~lthompson/bgy34/plantanatomy/plant_root.htm