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प्रश्न
Write full form of 2,4-D
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उत्तर
2,4-Dichloro phenoxy acetic acid
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संबंधित प्रश्न
How does chemical coordination occur in plants?
Which of the following hormones regulate stomatal colour?
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.
Abscisic acid controls ______.
Very Short Answer Question:
Which is the plant stress hormone?
Very Short Answer Question:
What is role of gibberellin in rosette plants?
A farmer is fed up of weeds in his Wheat farm. Which of the following chemicals he can use to overcome the problem?
Buyers often complain that a particular fruit merchant uses some chemical to ripen fruits in his shop.
Name the chemical he must be using to do so.
Why is ABA known as antitranspirant?
Which hormone promotes the production of male flowers in Cucurbits?
Which hormone induces parthenocarpy in tomatoes?
Which hormone induces parthenocarpy in tomatoes?
Which of the following is a NOT a naturally occurring phytohormone?
The active ingredient of Agent Orange is an egual mixture of two phenoxy herbicides ____________.
Apical dominance refers to ____________.
First cytokinin was discovered by Skoog and Miller while working on tissue culture of ____________ plant.
Name the plant hormones responsible for the following
- elongation of cells
- growth of stem
- promotion of cell division
- falling of senescent leaves.
Name various plant hormones. Also give their physiological effects on plant growth and development.
The box given below contains twelve words. Out of these, ten can be arranged in five suitable matching pairs. Make these five pairs in the form of a table.
| Auxins, Abscisic acid, Fruit ripening, Cytokinins, Closure of stomata, Parthenocarpy, Ethylene, Gibberellins, Tropism, Stem elongation, Cuscuta, Cell division. |
