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

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.

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प्रश्न

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.

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उत्तर

The phenomenon by which the terminal/apical bud suppresses the growth of lateral buds is called apical dominance. Apical dominance is due to the auxin hormone secreted by apical buds. This can be overcome by decapitation (removal of apical buds) or the application of cytokinin.

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Plant Growth Regulators - Physiological Effects of Plant Growth Regulators
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Plant Growth and Development - Exercises [पृष्ठ ८८]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 11
पाठ 15 Plant Growth and Development
Exercises | Q 8. | पृष्ठ ८८

संबंधित प्रश्‍न

Ethylene was discovered by


Ethylene is used for ______.


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 ______.


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

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.

Auxin precursors


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?


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?


Fill in the blanks:

Apical dominance is due to ______.


Fill in the blanks:

______ hormone initiate rooting.


Name a hormone which is gaseous in nature


Name a hormone which induces femaleness in flowers of cucumber


Name a hormone which induces flowering in long day plants


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