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The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application of
- a)NAA,2,4−D
- b)Phenyl acetic acid
- c)Cytokinin
- d)IAA,IBA
Correct answer is option 'A'. Can you explain this answer?
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The pineapple which under natural condition is difficult to blossom h...
The Effect of NAA and 2,4-D on Pineapple Blossoming
Under natural conditions, pineapples have a limited flowering period, making it difficult for them to produce fruits throughout the year. However, by applying certain plant growth regulators, such as NAA (Naphthaleneacetic acid) and 2,4-D (2,4-Dichlorophenoxyacetic acid), pineapples can be induced to blossom and produce fruits continuously.
NAA (Naphthaleneacetic acid)
NAA is a synthetic plant hormone that belongs to the auxin group. It plays a crucial role in promoting flowering in pineapples. The application of NAA helps in overcoming the natural inhibitory effect that prevents pineapple plants from flowering and fruiting continuously.
How NAA Induces Pineapple Blossoming
1. Overcoming natural inhibitory effect: Pineapples have a natural inhibitory effect that prevents them from flowering continuously. NAA helps in overcoming this inhibitory effect and stimulates flower induction.
2. Enhancing flower initiation: NAA promotes the formation of floral buds in pineapple plants. It stimulates the development of inflorescence, which is the structure that bears the flowers.
3. Inducing synchronous flowering: NAA application ensures synchronous flowering in pineapple plants. This means that the flowers bloom at the same time, allowing for consistent fruit production throughout the year.
4. Increasing fruit set: NAA also enhances the fruit set in pineapples. It improves the chances of successful pollination and fertilization, leading to a higher yield of fruits.
Other Plant Growth Regulators
While NAA is the correct answer for this question, it is worth mentioning the other options and their roles in plant growth:
- Phenyl acetic acid: This compound is not commonly used in inducing flowering in pineapples. It is primarily involved in the regulation of plant growth and development.
- Cytokinin: Cytokinins are plant hormones that promote cell division and growth. They play a role in various physiological processes, but they are not directly related to pineapple blossoming.
- IAA (Indole-3-acetic acid) and IBA (Indole-3-butyric acid): These are natural auxins that regulate various aspects of plant growth and development. While they may have some influence on flowering, they are not as effective as NAA in inducing continuous flowering in pineapples.
In conclusion, the application of NAA (Naphthaleneacetic acid) is the most effective method to induce continuous flowering and fruit production in pineapples. It overcomes the natural inhibitory effect and promotes flower initiation, synchronous flowering, and increased fruit set.
Under natural conditions, pineapples have a limited flowering period, making it difficult for them to produce fruits throughout the year. However, by applying certain plant growth regulators, such as NAA (Naphthaleneacetic acid) and 2,4-D (2,4-Dichlorophenoxyacetic acid), pineapples can be induced to blossom and produce fruits continuously.
NAA (Naphthaleneacetic acid)
NAA is a synthetic plant hormone that belongs to the auxin group. It plays a crucial role in promoting flowering in pineapples. The application of NAA helps in overcoming the natural inhibitory effect that prevents pineapple plants from flowering and fruiting continuously.
How NAA Induces Pineapple Blossoming
1. Overcoming natural inhibitory effect: Pineapples have a natural inhibitory effect that prevents them from flowering continuously. NAA helps in overcoming this inhibitory effect and stimulates flower induction.
2. Enhancing flower initiation: NAA promotes the formation of floral buds in pineapple plants. It stimulates the development of inflorescence, which is the structure that bears the flowers.
3. Inducing synchronous flowering: NAA application ensures synchronous flowering in pineapple plants. This means that the flowers bloom at the same time, allowing for consistent fruit production throughout the year.
4. Increasing fruit set: NAA also enhances the fruit set in pineapples. It improves the chances of successful pollination and fertilization, leading to a higher yield of fruits.
Other Plant Growth Regulators
While NAA is the correct answer for this question, it is worth mentioning the other options and their roles in plant growth:
- Phenyl acetic acid: This compound is not commonly used in inducing flowering in pineapples. It is primarily involved in the regulation of plant growth and development.
- Cytokinin: Cytokinins are plant hormones that promote cell division and growth. They play a role in various physiological processes, but they are not directly related to pineapple blossoming.
- IAA (Indole-3-acetic acid) and IBA (Indole-3-butyric acid): These are natural auxins that regulate various aspects of plant growth and development. While they may have some influence on flowering, they are not as effective as NAA in inducing continuous flowering in pineapples.
In conclusion, the application of NAA (Naphthaleneacetic acid) is the most effective method to induce continuous flowering and fruit production in pineapples. It overcomes the natural inhibitory effect and promotes flower initiation, synchronous flowering, and increased fruit set.
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The pineapple which under natural condition is difficult to blossom h...
Plants which are difficult to flower can be made to do so by spraying them with 2, 4, –D (2, 4 – dichlorophenoxy acetic acid) and NAA (napthalene acetic acid) which are synthetic auxins, e.g., litchi, pineapple.
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The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application ofa)NAA,2,4−Db)Phenyl acetic acidc)Cytokinind)IAA,IBACorrect answer is option 'A'. Can you explain this answer?
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