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प्रश्न
To get a carpet like grass lawns are mowed regularly. Is there any scientific explanation for this?
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उत्तर
The process of decapitation of plants leads to the inactivation of axillary buds and promotes the growth of lateral buds giving a carpet-like appearance.
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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 |
The term synergistic action of hormones refers 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
Promote lateral shoot growth
Plant growth substances (PGS) have innumerable practical applications. Name the PGS you should use to
Inhibit seed germination
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.
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?
On germination a seed first produces shoot with leaves, flowers appear later, Why do you think this happens?
Fill in the blanks:
______ hormone initiate rooting.
Name a hormone which is gaseous in nature
Name a hormone which is used for killing weeds (dicots)
