Parthenocarpy in tomatoes is induced by

  1. GA3
  2. ABA
  3. Auxin
  4. Cytokinins
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2,4-D widely used to

  1. Kill dicot trees
  2. Kill monocot weeds
  3. Kill dicot weeds
  4. Kill monocot shrubs
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Which of the following is not a function performed by Auxin?

  1. Controls Xylem differentiation
  2. Helps in cell division and cell growth inhibition
  3. Used as herbicide
  4. Used to prepare weed free lawns by gardeners
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Which of the following is not correct about Gibberellins?

  1. Another kind of promotors PGR
  2. There are more than 100 Gibberellins
  3. Found in Fungi and higher plants
  4. The first and most intensively studied form of Gibberellins is GA2
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Which of the following statements is correct?

  1. All GAs are basic
  2. All GAs are Acidic
  3. Most of the GAs are Acidic
  4. Most of the GAs are basic
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Which of the following is not a Physiological effect of Gibberellins?

  1. Increase in the length of the grape stalks
  2. They cause fruits like Apple to elongate and improve it's shape
  3. They also delay senescence
  4. They can shorten the market period for fruits
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Which of the following is a Physiological effect of Gibberellins?

  1. GA3 is used to speed up the malting process in brewing industry
  2. They promote senescence
  3. They shorten the market period
  4. Induce parthenocarpy in tomatoes
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Spraying sugarcane crop with gibberellins increases the length of the stem and increase the length by

  1. 20 tonnes per Km
  2. 20 tonnes per acre
  3. 40 tonnes per acre
  4. 40 tonnes per Km
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GAs hastens the maturity period in

  1. Pineapple
  2. Conifers
  3. Cactus
  4. Tomatoes
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Early seed production in…….. can be done by GAs

  1. Pineapple
  2. Grapes
  3. Tomatoes
  4. Conifers
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