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.
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Claims 4
Claim · model-written summary
Increasing plug cell volume increased dry weight and main root at sales stage.
- Taxon
- Impatiens walleranat0
- Organ / stage
- sales stagee0
- Treatment
- plug cell volumee0
- Outcome
- dry weight and main roote0
- Direction
- increasee0
- Qualifier
- from 512 to 50 plug cell tray (2.5 to 55.7 cm 3 cell -1 )e0
Not reportedComparator
Verbatim
e0“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.”
t0“Impatiens wallerana”
Claim · model-written summary
Paclobutrazol significantly decreased total dry weight.
Not reportedComparator
Verbatim
e0“When the growth retardant paclobutrazol was used, a significant decrease in total dry weight has been found.”
t0“Impatiens wallerana”
Claim · model-written summary
Holding plugs two weeks after optimum transplant could produce larger transplants.
Verbatim
e0“Larger transplant sizes could be achieved by holding plugs two weeks from the 'optimum transplant'.”
t0“Impatiens wallerana”
Claim · model-written summary
Root restriction and growth regulators inhibit growth and affect the suitability of small transplants despite their lower establishment costs.
Verbatim
e0“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.”
t0“Impatiens wallerana”