Articles
FLURPRIMIDOL PREPLANT SOAKS AND SUBSTRATE DRENCHES CONTROL EXCESSIVE GROWTH OF FORCED BULBS
Article number
886_53
Pages
385 – 391
Language
English
Abstract
The suitability of flurprimidol preplant bulb soaks and substrate drenches to control growth control of greenhouse forced bulbs were studied.
Flurprimidol provided stem stretch control of tulips as a preplant bulb soak at concentrations of 10 to 25 mg/L. Preplant bulb soaks were not effective on Red Flash caladiums, but substrate drenches of 2 mg a.i. control plant height.
For hyacinths, flurprimidol provided stem stretch control as a preplant bulb soak as a concentration 10 to
25 mg/L, but the concentration was cultivar dependant.
A substrate drench of flurprimidol at 1 mg a.i. per pot was required to control hyacinth stem stretch.
For Tête-à-Tête narcissus, a preplant bulb soak of 30 mg/L flurprimidol or a 0.69 mg a.i. substrate drench were effective.
A preplant bulb soak of 20 mg/L flurprimidol was required for stem stretch control of Dutch Master narcissus.
Excessive stretch of Star Gazer Oriental lily was controlled with a flurprimidol preplant bulb soak at 25 mg/L or a substrate drench of 0.5 mg a.i.
Flurprimidol has been shown to be effective at controlling plant height for a number of bulb species and will be a valuable tool for producing quality plants.
Flurprimidol provided stem stretch control of tulips as a preplant bulb soak at concentrations of 10 to 25 mg/L. Preplant bulb soaks were not effective on Red Flash caladiums, but substrate drenches of 2 mg a.i. control plant height.
For hyacinths, flurprimidol provided stem stretch control as a preplant bulb soak as a concentration 10 to
25 mg/L, but the concentration was cultivar dependant.
A substrate drench of flurprimidol at 1 mg a.i. per pot was required to control hyacinth stem stretch.
For Tête-à-Tête narcissus, a preplant bulb soak of 30 mg/L flurprimidol or a 0.69 mg a.i. substrate drench were effective.
A preplant bulb soak of 20 mg/L flurprimidol was required for stem stretch control of Dutch Master narcissus.
Excessive stretch of Star Gazer Oriental lily was controlled with a flurprimidol preplant bulb soak at 25 mg/L or a substrate drench of 0.5 mg a.i.
Flurprimidol has been shown to be effective at controlling plant height for a number of bulb species and will be a valuable tool for producing quality plants.
Authors
B.E. Whipker, I. McCall, W. Buhler, B. Krug
Keywords
caladium, hyacinth, narcissus, oriental lily, plant growth regulator, tulip
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