Which of the following PGR is widely used as herbicide?
[B] Gibberiellic acid
Which of the following PGR is widely used to kill dicotyledonous weeds?
2, 4—D does not show herbicidal action on
[A] chicory led ones
[B] monocoty ledonous
[C] mature dicotyledonous
[D] mature monocotyledonous
Auxin 2, 4-D used for what?
[A] To remove weeds from farms by formers.
[B] To remove weeds from lawn by gardeners
[C] To induce flowering in horticulture
Auxin helps in what?
[A] Controlling phloem differentiation
[B] Controlling xylem differentiation
[C] Cell division
[D] Both (b) and (c)
How many varieties of Gibberellins reported from widely different verity of organisms?
Different types of Gibberellins is reported from what kind of organisms?
[B] higher plants
Which of the following was first reported gibberellins to be discovered?
What is the chemical natural of all the GAs?
[D] Slightly basic
Gibberellins bring about what kind of change in plants?
Which ability of gibberellins is used to increase the length of grape stalks?
[A] ability to increase apically
[B] ability to increase in length of axis
[C] ability to avoid apical dominance
How does gibberellins not chance quality of an apple?
[A] Make it sweeter
[B] Elongate it in size
[C] Improve its shape
How can Gibberellins help to extend the market period?
[A] It delays senescence
[B] Increases ripening period
[C] Increases flowering time
In the form of sugar, sugarcane stores what?
On spraying Gibberellins on sugarcane crops what major change will it bring?
[A] Increase sweetness
[B] Increase length of stem
[C] Increase root strength