Plant growth regulators (PGRs) are chemicals that are designed to affect plant growth and/or development (figure 1). They are applied for specific purposes to elicit specific plant responses. Although there is much scientific information on using PGRs in the greenhouse, it is not an exact science. Achieving the best results with PGRs is a combination of art and science — science tempered with a lot of trial and error and a good understanding of plant growth and development.
Ensuring optimal viewing of ePubs on your device
- iPhone and iPad users: Be sure to turn off full justification and auto-hyphenation. Visit the Settings app on your device and select iBooks in the left rail to change the default selections.
- Kindle and Nook users: While reading your ePub, you can adjust your margins and font size to change how the text flows by selecting the “Aa” button (Kindle) or “text” (Nook) to access settings.
Virginia Cooperative Extension materials are available for public use, reprint, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.
Issued in furtherance of Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University, and the U.S. Department of Agriculture cooperating. Edwin J. Jones, Director, Virginia Cooperative Extension, Virginia Tech, Blacksburg; M. Ray McKinnie, Administrator, 1890 Extension Program, Virginia State University, Petersburg.
November 18, 2013