Moisture stress: an alternative method of height control to B-nine (daminozide)

Moisture stress was compared to B-nine (daminozide) as a method of height control for annual bedding plant transplants. Three plant species, ‘Big Boy’ tomato, ‘California Wonder’ pepper and ‘Janie Gold’ marigold, were grown in 132 cm3 (8.05 in3) cell packs containing one of 2 commercial media, Fafar...

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Bibliographic Details
Published in:Journal of environmental horticulture 1992-12, Vol.10 (4), p.232-235
Main Authors: Brown, David R., Eakes, D. Joseph, Behe, Bridget K., Gilliam, Charles H.
Format: Article
Language:English
Subjects:
altura
bedding plants
capsicum annuum
crecimiento
croissance
daminozida
daminozide
drought stress
estres de sequia
growth
hauteur
height
lycopersicon esculentum
plantas de arriate
plante de parterre
stress du a la secheresse
tagetes
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Summary:Moisture stress was compared to B-nine (daminozide) as a method of height control for annual bedding plant transplants. Three plant species, ‘Big Boy’ tomato, ‘California Wonder’ pepper and ‘Janie Gold’ marigold, were grown in 132 cm3 (8.05 in3) cell packs containing one of 2 commercial media, Fafard #3 or Pro-Mix BX. Treatments included moisture stress (MS), 2 concentrations of B-nine (2500 ppm applied twice and 5000 ppm once), and an untreated control. Method of height control and medium type had an interactive influence on height for each of the 3 species. Moisture stress tomato and marigold were shorter in the Fafard #3 medium compared to those in the Pro-Mix BX medium. Regardless of medium, MS tomato and marigold transplants were shorter or similar in size to the most effective B-nine treatment, 2500 ppm applied twice. Moisture stress and the B-nine treatments for pepper plants grown in the Fafard #3 medium reduced plant height similarly compared to the controls. However, when pepper plants were grown in the Pro-Mix BX medium, only B-nine treatments reduced plant height compared to the controls. Treatments producing short plants did not reduce node number, hence plants appeared fuller than treatments with tall plants. Shoot dry weights for MS tomato and marigold were less than those of plants receiving the other height control treatments, regardless of medium type. Plants of all 3 species grown in the Fafard #3 medium had less shoot dry weight than Pro-Mix BX plants across the 4 height control treatments.
ISSN:0738-2898
2573-5586
DOI:10.24266/0738-2898-10.4.232