PGRs
Dec. 7, 2011, West Lafayette, IN — A Purdue University scientist and researchers in Japan have produced a new class of improved plant growth regulators that are expected to be less toxic to humans.
Nov. 6, 2009, Buenos Aires, Argentina – Prior research has reported the successful use of a technique termed “light manipulation” to affect plant height in some ornamental plants. Researchers in Argentina have been studying its potential with poinsettias.
Suggestions from growers often find their way into the  classroom labs
July 24, 2008 — Since it was first labelled for use on ornamentals in 1982, Bonzi plant growth regulator (PGR) from Syngenta Professional Products has long been regarded as one of the leading PGRs throughout the nursery and greenhouse industries. Through the years, Bonzi has been shown to consistently keep plants uniformly compact, hardy and well proportioned.

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