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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Gibberellins does not  promote bolting in

  1. Beet
  2. Cabbage
  3. Plants with rosette habit
  4. Pineapple
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Bolting is

  1. Internode elongation just prior to flowering
  2. Internode elongation just after flowering
  3. Reduction in stem length just prior to flowering
  4. Reduction in stem length just after flowering
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Which of the following PGRs have isolated from autoclaved herring sperm DNA?

  1. Cytokinins
  2. Gibberellins
  3. Auxin
  4. Ethylene
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Which of the following occurs naturally in plants?

  1. Kinetin
  2. NAA
  3. IBA
  4. 2,4 D
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Which of the following figure depicts Apical Dominance?

  1. b
  2. a
  3. Does not belong Apical Dominance
  4. The information is insufficient to predict
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Zeatin

  1. Isolated from herring sperm
  2. Isolated from coconut milk and corn Kernels
  3. Isolated from corn Kernels
  4. Isolated from rice seedlings
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