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प्रश्न
Name the gaseous plant hormone. Describe its three different actions in plants.
उत्तर
Ethylene is a gaseous plant hormone.
- Ethylene promotes the ripening of fruits. Eg: Tomato, Apple, Mango, Banana, etc.
- Ethylene inhibits the elongation of stem and root in dicots.
- Ethylene hastens the senescence of leaves and flowers.
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संबंधित प्रश्न
To increase the sugar production in sugarcanes they are sprayed with ______
Compound which is most widely used as a source of ethylene is ____________.
Which hormone is responsible for fruit ripening?
A farmer grows cucumber plants in his field. He wants to increase the number of female flowers in them. Which plant growth regulation can be applied to achieve this?
Ethylene is synthesised in ______.
Explain the role of chlorophyllase enzyme in banana.
Pick up the right options and complete the chart given below and rewrite:
(Options: Antitranspirant, Ethylene, Auxin, ABA, Apical dominance, Gibberellins, Cytokinin, NAA.)
| Sr. No. | Hormone | Example | Function |
| 1 | ____________ | IAA | Cell elongation |
| 2 | Auxin | IBA | ____________ |
| 3 | Stress hormone | ____________ | Delay cell division |
| 4 | ____________ | Zea tin | Cell division |
| 5 | Abscissic acid | ABA | ____________ |
| 6 | Auxin | ____________ | Flowering in pineapple |
Give a definition of the following Apical dominance.
What is epinasty?
Name the following:
A gaseous plant hormone which promotes the ripening of fruits.
