<H1>Demonstration Plots</H1>
   <P><UL>
   <LI><H2>Objectives
   </H2>
   <UL>
   <LI>example/information for growers
   <LI>simple qualitative comparisons
   </UL></UL><UL>
   <LI><H2>Advantages
   </H2>
   <UL>
   <LI>simple to coordinate
   <LI>simple to assess
   </UL></UL><UL>
   <LI><H2>Disadvantages
   </H2>
   <UL>
   <LI>not very useful for quantitative study
   <LI>may oversimplify issue</UL></UL></P>