A database application for tracking experiments

All,
Earlier this year, I needed to migrate my my tree breeding data and experiments from a collection of spreadsheets to a database application. I could not find an open source application that met my needs so I rolled my own.  It has the following characteristics:

• PostgreSQL database backend.
• A database schema that supports relationships from high level Plant Taxa, plant, family and Test Types right down to the nitty gritty Test Detail/Score levels.
• A database schema that supports the concept of virtual columns that map to custom Test Type database views.  This allows for a variety of custom test types, details and scoring combinations.
• A PHP database frontend tool that can allow the user to: CRUD changes, display tables/views and execute native SQL, export to various CSV formats and has smart query input boxes (eg. http://www.gosu.pl/dbkiss/ ).
• The ability to integrate seamlessly with spreadsheets for ease of use and mass import/exports.
• Built in regression and load test components for rapid application development and later modifications.

The essense of this process is to integrate diverse data from a variety of spreadsheets into a repository (aka database). Then one could export specific data sets for further analysis in a stats package like the R Statistics application, which is widely used in the scientific field. From my standpoint, I think of it as "Business Intelligence for Plant Breeders"...

Here is a graphic of the open4stdb table schema: http://tiny.cc/open4stdb] [url]http://tiny.cc/open4stdb[/url].  The open4stdb system relies on metadata by storing URLs for external content such as web pages for existing protocols or photos (eg. links to Picasa pages).

I think this application may be too specific for high school and even college use.  However, it could be adapted to fit most any science subject (e.g. biology, botany, physics, etc), any subject that relates to experiments.  Would a generic application like this be useful for high school/college?  Or is there an existing application that does this better?
Thanks!