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प्रश्न
Multiple choice question.
Abscisic acid controls ______.
विकल्प
cell division
leaf fall and dormancy
shoot elongation
cell elongation and wall formation
उत्तर
Abscisic acid controls leaf fall and dormancy.
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संबंधित प्रश्न
List five plant growth hormones and briefly describe their roles.
The figure given below shows the stages of ripening in a banana. Answer the question that follow:
Mention two characteristic features of this hormone.
Answer the following question.
What are plant hormones? Name the plant hormones responsible for the following:
- Growth of stem
- Promotion of cell division
- Inhibition of growth
- Elongation of cells
Multiple choice question.
Which is employed for the artificial ripening of banana fruits?
Match the column A with B
| A | B | |
| i. | Epinasty of flower | GA3 |
| ii. | Natural auxin | NAA |
| iii. | Flowering in Litchi | IAA |
| iv. | Bolting of Beet | Ethylene |
Write the name of______
- First hormone discovered in plants.
- Biological name of fungus from which Gibberellins were first isolated.
- The name given to the first cytokinin by Skoog and Miller.
Write the name of Hormone that can overcome the requirement of vernalization.
Name the plant hormones responsible for the following
- elongation of cells
- growth of stem
- promotion of cell division
- falling of senescent leaves.
A plant growth inhibitor hormone which causes wilting of leaves is ______.
Define the following term:
Phytohormones
