Iha Education February Webinar - Plant Growth Regulators

10 Questions | Total Attempts: 53

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Webinar Quizzes & Trivia

This quiz was created by the IHA as a review for a webinar presented in February 2009 regarding Plant Growth Regulators.


Questions and Answers
  • 1. 
    Applying PGR’s early in the production of a crop generally provides more growthregulation than one applied closer to mature size.
    • A. 

      True

    • B. 

      False

  • 2. 
    When comparing soil drenches of Bonzi/Paczol to foliar sprays, drenches typically:
    • A. 

      Spread less disease

    • B. 

      Improve flower color

    • C. 

      Provide longer height control

    • D. 

      Cause less bloom delay

    • E. 

      C and D

  • 3. 
    Fascination reduces stem elongation and lower leaf yellowing of Easter lilies when used as directed.
    • A. 

      True

    • B. 

      False

  • 4. 
    Which two PGR’s are recommended to reduce the height of Easter lilies?
    • A. 

      A-Rest, Fascination

    • B. 

      B-Nine, Cycocel

    • C. 

      A-rest, Sumagic

    • D. 

      Florel, Fascination

  • 5. 
    Which one of these has no influence on internode elongation (stretching):
    • A. 

      Watering practices

    • B. 

      Available light

    • C. 

      Temperature

    • D. 

      Source of nitrogen

    • E. 

      Phosphorus

  • 6. 
    Florel produces which of the following responses in most plants?
    • A. 

      Promotes lateral branching

    • B. 

      Reduces internode elongation

    • C. 

      Delays blooming

    • D. 

      Exaggerates plant stress

    • E. 

      All of the above

  • 7. 
    Most PGR’s are applied at a rate of 1 gallon per 200 square feet. Which one is applied just to the point of glisten?
    • A. 

      A-Rest

    • B. 

      B-Nine, Compress

    • C. 

      Bonzi, Paczol

    • D. 

      Cycocel

    • E. 

      Florel

  • 8. 
    The Wave petunia program suggested in the webinar consists of a foliar spray of Florel followed by a Bonzi/Paczol drench. Which of the following is not a result of this program?
    • A. 

      More compact growth

    • B. 

      Earlier flowering

    • C. 

      Reduced disease spread

    • D. 

      Less labor

  • 9. 
    Pine bark in soil mixes can reduce the effectiveness of PGR drenches.
    • A. 

      True

    • B. 

      False

  • 10. 
    To reduce the potential for plants to stretch:
    • A. 

      Increase the average daily temperature.

    • B. 

      Decrease the average daily temperature.

    • C. 

      Reduce the day temperature while leaving the night temperature the same.

    • D. 

      Play loud Disco music in the greenhouse night and day.

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