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प्रश्न
The figure given below shows the stages of ripening in a banana. Answer the questions that follow:
- Name the plant hormone responsible for the above changes.
- Mention two characteristic features of this hormone.
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उत्तर
- Ethylene is the hormone responsible for the above changes. At ordinary temperatures, ethylene is a gas; it helps in the ripening of bananas when stored together.
- Characteristic features of ethylene:
- It is synthesised in senescent leaves and flowers, germinating seeds and ripening fruits.
- It promotes root growth and root hair formation and it also induces and promotes fruit ripening.
संबंधित प्रश्न
A higher concentration of ethylene is found in
______ is a gaseous hormone involved in the abscission of organs and acceleration of fruit ripening.
Name the gaseous plant hormone. Describe its three different actions in plants.
What would be expected to happen if A rotten fruit gets mixed with unripe fruits?
Which phytohormones is called secondary hormone?
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 |
Name the following:
A gaseous plant hormone which promotes the ripening of fruits.
The hormone which promotes the ripening of fruits is ______.
