Comparison of Uniconazole Products on Greenhouse Crops

Transcription

1 A Report Sumitted to Fine Americs, Inc. Comprison of Uniconzole Products on Greenhouse Crops Spring 2006 Mtthew Blnchrd, Roerto Lopez, Mike Olrich, nd Erik Runkle Michign Stte University

2 OBJECTIVE The ojective of this experiment ws to compre the reltive efficcy of the plnt growth retrdnts Concise TM (uniconzole, Fine Americs, Inc.) nd Sumgic (uniconzole, Vlent USA Corp.) on three species of edding plnts, one herceous perennil nd one potted flowering crop.

3 METHODS The chemicl pplictions were mde 8 dys nd 12 dys fter plnting of edding plnts nd Lilium, respectively. For Delphinium, the chemicl pplictions were mde when plnts egn to olt, 25 dys fter trnsplnting. A single folir spry of Concise or Sumgic (2 qt./100 ft 2 ) ws mde etween 9:00 nd 10:00 m on the dy of ppliction. The plnts were grown in glss greenhouse. The temperture setpoint ws constnt 20 ºC nd the ctul verge ir temperture ws 22.3 ±2.5 ºC. Plnts were grown under nturl dylengths (lt. 42 N). Plnt height ws mesured on the dte of the chemicl ppliction nd t 2 nd 4 weeks fter the ppliction. Dte of first flowering ws recorded for ech plnt, nd time to flower ws clculted.

4 Clircho x hyrid Cllie Yellow Centimeters Control Concise 2 ppm Sumgic 2 ppm Concise 6 ppm Sumgic 6 ppm WAT 4 WAT Tretments with the sme letter re not sttisticlly different t P 0.05.

5 Comprison of Uniconzole Products on Greenhouse Crops Clircho hyrid Cllie Yellow 2 ppm 6 ppm Control Sumgic Concise Sumgic Concise Height inhiition t 4 weeks (%) Photo: 4 weeks fter ppliction (5/31/06)

6 Comprison of Uniconzole Products on Greenhouse Crops Delphinium grndiflor Summer Blues Control 5 ppm 15 ppm Sumgic Concise Sumgic Concise Photo: 4 weeks fter ppliction (6/20/06) Height inhiition t flower (%)

7 Lilium x hyrid Americ Centimeters c c Control Concise 2 ppm Sumgic 2 ppm Concise 6 ppm Sumgic 6 ppm WAT 4 WAT Tretments with the sme letter re not sttisticlly different t P 0.05.

8 Comprison of Uniconzole Products on Greenhouse Crops Lilium hyrid Americ 2 ppm 6 ppm Control Sumgic Concise Sumgic Concise Photos: 3 weeks fter ppliction (5/17/06)

9 Comprison of Uniconzole Products on Greenhouse Crops Lilium hyrid Americ 2 ppm 6 ppm Control Sumgic Concise Sumgic Concise Photo: 6 weeks fter ppliction (6/7/06) Height inhiition t flower (%)

10 Comprison of Uniconzole Products on Greenhouse Crops Nepet fssenii Wlkers Low 15 ppm 45 ppm Control Sumgic Concise Sumgic Concise Photo: 4 weeks fter ppliction (5/31/06) Height inhiition t 4 weeks (%)

11 Suter cordt Showers Bridl Centimeters c c c Control Concise 2 ppm Sumgic 2 ppm Concise 6 ppm 5 Sumgic 6 ppm 0 2 WAT 4 WAT Tretments with the sme letter re not sttisticlly different t P 0.05.

12 Comprison of Uniconzole Products on Greenhouse Crops Suter cordt Showers Bridl 2 ppm 6 ppm Control Sumgic Concise Sumgic Concise Height inhiition t 4 weeks (%) Photo: 4 weeks fter ppliction (5/31/06)

13 Veren Semi Triling Lni Blue Centimeters c c c Control Concise 2 ppm Sumgic 2 ppm Concise 6 ppm Sumgic 6 ppm 0 2 WAT 4 WAT Tretments with the sme letter re not sttisticlly different t P 0.05.

14 Comprison of Uniconzole Products on Greenhouse Crops Veren Semi Triling Lni Blue 2 ppm 6 ppm Control Sumgic Concise Sumgic Concise Height inhiition t 4 weeks (%) Photo: 4 weeks fter ppliction (5/31/06)

15 CONCLUSIONS Concise nd Sumgic re oth effective t controlling stem elongtion in Clircho hyrid Cllie Yellow, Delphinium grndiflorum Summer Blues, Lilium Americ, Nepet fssenii Wlkers Low, Suter cordt Showers Bridl, nd Veren Semi Triling Lni Blue. In ll species except Nepet, there were no differences in growth retrdtion etween ppliction rtes of either chemicl (e.g., Concise pplied t 2 ppm produced similr response s Sumgic pplied t 2 ppm). For Nepet, single spry of Concise t 45 ppm continued to inhiit stem extension 4 weeks fter ppliction, while the effectiveness of Sumgic diminished. Concise nd Sumgic hd no effect on time to flower in ll species except Delphinium. There were no differences in the numer of flowers mong ny tretments for ll species. TM Concise is Trdemrk of Fine Agrochemicls Limited Sumgic is Registered Trdemrk of Sumitomo Chemicl Compny, Ltd.