Home
Class 12
BIOLOGY
Which of the following prevents falling ...

Which of the following prevents falling of fruits
OR
Fruit and leaf drop at early stages can be prevented by the application

A

cytolkinins

B

ethylene

C

auxins

D

gibberellic acid

Text Solution

Verified by Experts

The correct Answer is:
C
Auxin delay abscission of leaves and fruits at early stages. Whenever leaf or fruit fall occurs, the organ concerned stops producing auxin. However, it promotes abscission of older, mature leaves and fruits
Promotional Banner

Topper's Solved these Questions

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise MCQs|74 Videos

  • PLANT KINGDOM

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise MCQ|107 Videos

Similar Questions

Explore conceptually related problems

Fruit and leaf drop at early stages can be prevented by the application of

Floods can be prevented by

Which of the following prevents collapsing of Trachea

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-Plant Growth and Development -Exercise
  1. Which of the following prevents falling of fruits OR Fruit and lea...

    Text Solution

    |

  2. The Avena curvature is used for bioassay of

    Text Solution

    |

  3. Phytochrome is

    Text Solution

    |

  4. You are given a tissue with its potential for differentiation in an ar...

    Text Solution

    |

  5. Auxin can be bioassayed by

    Text Solution

    |

  6. Dr. F. Went noted that is coleoptile tips were removed and placed on a...

    Text Solution

    |

  7. Which one o f the following plant hormone (phytomone ) Is know as a st...

    Text Solution

    |

  8. A few normal seedlingd of tomato were kept in a dark room. After a few...

    Text Solution

    |

  9. During seed germination, its stored food is mobilised by

    Text Solution

    |

  10. Phototropic curvature is result of uneven distribution of

    Text Solution

    |

  11. Coiling of graden pea tendrils around any support is an example of

    Text Solution

    |

  12. One of the synthetic auxin is

    Text Solution

    |

  13. Which one of the following acids is a derivative of carotenoids?

    Text Solution

    |

  14. Senescence as an active devlopmental cellular process in the growth an...

    Text Solution

    |

  15. Impotance of day length ( photoperiodism ) in flowering of plants was ...

    Text Solution

    |

  16. Opening of floral buds is

    Text Solution

    |

  17. The wavelength of light absorbed by Pr form of phytochrome is

    Text Solution

    |

  18. The hormone which was discovered through ' foolish seedling ' disease ...

    Text Solution

    |

  19. Which one of the following pairs , is not correctly matched

    Text Solution

    |

  20. How does pruning help in making the hedge dense

    Text Solution

    |