Articles
THE DEVELOPMENT OF PTILOTUS EXALTATUS R.BR. UNDER CENTRAL EUROPEAN CONDITIONS
Article number
397_16
Pages
163 – 180
Language
Abstract
In this paper will be presented the latest findings concerning Ptilotus exaltatus Nees in continuation of earlier developments in ornamental plants of Australian origin under Central European conditions.
The germination of the seed which had been cleaned, stored for fifty days at +5°C and then treated with 2000 ppm GA3 for 24 hours, took place with an eighty percent germination rate after only 5 to 7 days.
Besides that about a successful propagation method by tissue culture is reported.
Grown in pots (3 plants per 12cm pot) P. exaltatus developed an attractive compact plant structure as well as an increased amount of inflorescences.
The main shoots were pinched once and (so far best) two growth retarding treatments consisting of a cycocel solution ("Basacel", 0,8%) about 10 and 12 weeks after the culture was started were applied.
New empirical knowledge was obtained with the cultivation of P. exaltatus for cut flowers which led to acceptable qualities, both under glass and plastic as well as outdoors.
The results both for pot plants as well as for cut flowers have been displayed in preliminary cultivation diagrams.
These can be used to grow attractive P. exaltatus potted plants as well as cut flowers from the end of April/ beginning of May until about the end of September/beginning of October.
The germination of the seed which had been cleaned, stored for fifty days at +5°C and then treated with 2000 ppm GA3 for 24 hours, took place with an eighty percent germination rate after only 5 to 7 days.
Besides that about a successful propagation method by tissue culture is reported.
Grown in pots (3 plants per 12cm pot) P. exaltatus developed an attractive compact plant structure as well as an increased amount of inflorescences.
The main shoots were pinched once and (so far best) two growth retarding treatments consisting of a cycocel solution ("Basacel", 0,8%) about 10 and 12 weeks after the culture was started were applied.
New empirical knowledge was obtained with the cultivation of P. exaltatus for cut flowers which led to acceptable qualities, both under glass and plastic as well as outdoors.
The results both for pot plants as well as for cut flowers have been displayed in preliminary cultivation diagrams.
These can be used to grow attractive P. exaltatus potted plants as well as cut flowers from the end of April/ beginning of May until about the end of September/beginning of October.
Authors
W.-U.v. Hentig, D. Ehlers, F. Hennig, M. Seyring
Keywords
Ptilotus exaltatus, cultivation methods, gibberellic acid, cycocel, additional lighting
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