हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

Ethylene is used for ______.

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प्रश्न

Ethylene is used for ______.

विकल्प

  • Retarding ripening of tomatoes

  • Hastening of ripening of fruits

  • Slowing down ripening of apples

  • Both Hastening of ripening of fruits and Slowing down ripening of apples

MCQ
रिक्त स्थान भरें
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उत्तर

Ethylene is used for hastening of ripening of fruits.

Explanation:

Hastening the ripening of fruits

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Plant Growth Regulators - Physiological Effects of Plant Growth Regulators
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अध्याय 15: Plant Growth and Development - Exercises [पृष्ठ ८४]

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एनसीईआरटी एक्झांप्लर Biology [English] Class 11
अध्याय 15 Plant Growth and Development
Exercises | Q 1. | पृष्ठ ८४

संबंधित प्रश्न

Match the following:

Column A Column B
A. IAA i. Herring sperm DNA
B. ABA ii. Bolting
C. Ethylene iii. Stomatal closure
D. GA iv. Weed-free lawns
E. Cytokinins v. Ripening of fruits

Apples are generally wrapped in waxed paper to ______.


To increase sugar production in sugarcanes, they are sprayed with ______.


ABA acts antagonistic to ______.


Plant growth substances (PGS) have innumerable practical applications. Name the PGS you should use to

Increase yield of sugar cane


Plant growth substances (PGS) have innumerable practical applications. Name the PGS you should use to

Inhibit seed germination


Gibberellins promote the formation of ______ flowers on genetically _____ plants in Cannabis whereas ethylene promotes formation of _______ flowers on genetically ______ plants.


In botanical gardens and tea gardens, gardeners trim the plants regularly so that they remain bushy. Does this practice have any scientific explanation?


Auxins are growth hormones capable of promoting cell elongation. They have been used in horticulture to promote growth, flowering and rooting. Explain the meaning of the following terms related to auxins.

Anti-auxins


Auxins are growth hormones capable of promoting cell elongation. They have been used in horticulture to promote growth, flowering and rooting. Explain the meaning of the following terms related to auxins.

Synthetic auxins


Define parthenocarpy. Name the plant hormone used to induce parthenocarpy.


A gardener finds some broad-leaved dicot weeds growing in his lawns. What can be done to get rid of the weeds efficiently?


On germination a seed first produces shoot with leaves, flowers appear later, Why do you think this happens?


Fill in the blanks:

Apical dominance is due to ______.


Name a hormone which is gaseous in nature


Name a hormone which induces femaleness in flowers of cucumber


Name a hormone which is used for killing weeds (dicots)


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