ISHS


Acta
Horticulturae
Home


PubHort
Home


Login
Logout
Status


Help

ISHS Home

ISHS Contact

Search
 
ISHS Acta Horticulturae 541: IV International Symposium on New Floricultural Crops

GROWTH REGULATION AS A NECESSARY PREREQUISITE FOR INTRODUCTION OF NEW PLANTS

Authors:   A.S. Andersen, L. Andersen
DOI:   10.17660/ActaHortic.2000.541.26
Abstract:
In all previous symposia on “New Ornamental Plants” there have been numerous papers and posters related to chemical growth regulation. Some of these will be reviewed. In particular for those plants intended for potted plant production the need for growth control is obvious. Most of the plants that are introduced have an undesirable tall or spindly growth habit. Especially the flowering plants have been subjected to the array of growth regulators available to scientists and growers. Most of the regulation is synonymous with retardation of stem growth which is effected by chemical compounds that interfere with gibberellin syntesis. Much is known about the specific points of action of the various compounds. This evidence will be summarised briefly, it may give answers to some questions regularly posed by developers of new plants such as: Which compound is most likely to be effective with this particular plant? These procedures will also be essential in the foreseeable future, however, environmental concerns and availability of chemical compounds may necessitate other approaches. Recent research has focussed on methods such as thermoperiodicity, mechanical stress, drought treatments and restriction of key nutrients. The possibilities for genetic control of plant morphology are largely unexploited at present, although they show great promises.

Download Adobe Acrobat Reader (free software to read PDF files)

541_25     541     541_27

Websites www.pubhort.org/actahort/      www.actahort.org       www.pubhort.org       www.ishs.org       Hosted by KU Leuven LIBIS       ©ISHS