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प्रश्न
On germination a seed first produces shoot with leaves, flowers appear later, Why do you think this happens?
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उत्तर
Initially, after seed germination, branches with leaves appear. This signifies the plant's vegetative development. This is necessary in order to synthesise sufficient nutrients for sexual reproduction. As a result, blossoming occurs after this stage.
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संबंधित प्रश्न
Ethylene is used for ______.
Coconut water contains ______.
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
Promote lateral shoot growth
Plant growth substances (PGS) have innumerable practical applications. Name the PGS you should use to
Cause sprouting of potato tuber
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.
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
While experimentation, why do you think it is difficult to assign any affect seen to any single hormone?
To get a carpet like grass lawns are mowed regularly. Is there any scientific explanation for this?
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)
