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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

Ethylene is used for ______. - Biology

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प्रश्न

Ethylene is used for ______.

पर्याय

  • 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
रिकाम्या जागा भरा
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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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पाठ 15: Plant Growth and Development - Exercises [पृष्ठ ८४]

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

संबंधित प्रश्‍न

Ethylene was discovered by


The affect of apical dominance can be overcome by which of the following hormone ______.


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 ______.


The term synergistic action of hormones refers 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

Promote lateral shoot growth


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


While experimentation, why do you think it is difficult to assign any affect seen to any single hormone?


What is the mechanism underlying the phenomenon by which the terminal/apical bud suppresses the growth of lateral buds? Suggest measures to overcome this phenomenon.


To get a carpet like grass lawns are mowed regularly. Is there any scientific explanation for this?


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


Fill in the blanks:

Apical dominance is due to ______.


Name a hormone which is gaseous in nature


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


Name a hormone which induces flowering in long day plants


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