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Question
Name the following:
A gaseous plant hormone which promotes the ripening of fruits.
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Solution
Ethylene
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RELATED QUESTIONS
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.
Ethylene retards the senescence of leaves, flowers, and fruits.
Name the gaseous plant hormone. Describe its three different actions in plants.
In which of the following cases ethylene (gaseous phytohormone) synthesized in large amounts by tissues?
- Ripening of fruits
- Senescence
- Cell division promoting activity
- Actively growing apices of stems and roots.
Describe physiological effects and applications of gaseous hormones in plants.
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?
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 |
What is epinasty?
Which hormone promotes internode/petiole elongation in deep water rice?
