The effects of plug cell volume, paclobutrazol height control and the transplant stage on the post-transplant growth of Impatiens wallerana pot plant
Year: 2007
Type: article
Abstract: Summary The aim of this work was to determine the effect of both nursery container volume and the use of paclobutrazol retardant associated to holding plugs on the growth of Impatiens wallerana , an important bedding plant, at the commercial sales stage. Our results showed an increase in dry weight and main root at the sales stage while plug cell volume increased from 512 to 50 plug cell tray (2.5 to 55.7 cm 3 cell -1 ) during nursery. When the growth retardant paclobutrazol was used, a significant decrease in total dry weight has been found. Larger transplant sizes could be achieved by holding plugs two weeks from the 'optimum transplant'. The advantage of small transplants is related to lower establishment costs but, the presence of short- and long-term stresses such as the 'root restriction' imposed by small plug cell tray and/or growth regulators which inhibit plant growth overriding these economic aspects affects their suitability.
Authors: A. di Benedetto, R. Klasman
Institution: Universidad de Buenos Aires
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W4408855386