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The PGRs can be broadly divided into two...

The PGRs can be broadly divided into two groups based on their functions in living plant body. One group of PGRs are involved in growth promoting activities, such as cell division, cell enlargement, pattern formation, tropic growth, flowering, fruiting and seed formation These are also called

A

Plant growth regulators

B

Plant growth promoters

C

Plant growth inhibitors

D

Plant growth supporters

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The correct Answer is:
B
The PGRS can be broadly divided into two groups based on their functions in living plant body. One group of PGRS are involved in growth promoting activities, such as cell division, cell enlargement, pattern formation, tropic growth, flowering, fruiting and seed formation. These are also called plant growth promoters
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Functions of plant growth promoters and plant growth inhibitros are given here in a jumbled up manner. Select the option that correctly segregates these functions. (i) Cell division (ii) Cell enlargement (iii) Pattern formation (iv) Tropic growth (v) Flowering (vi) Fruiting (viii) Seed germination (viii) Response to wounding (ix) Response to stresses of biotic and abiotic origin (x) Dormancy

Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?

A2Z-PLANT GROWTH AND DEVELOPMENT-Section A : Topicwise Questions Topic 3 : Plant Growth Regulators (characteristics And The Discovery
  1. Callus is:

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  2. Which is correctly matched?

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  3. The PGRs can be broadly divided into two groups based on their functio...

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  4. Which of the following PGRs are categorised as plant growth promoters?

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  5. The PGRs which play an important role in plant responses to wound and ...

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  6. The PGR, ethylene, could fit either the groups-plant growth promoters ...

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  7. The following experiment demonstrate that the

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  8. The discovery of each of the five major groups of PGRs (auxin, GA, cyt...

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  9. Who confirmed the release of a volatile substance from ripening orange...

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  10. Who observed that the coleoptiles of canary grass responded to unilate...

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  11. Auxin was isolated from tips of coleoptiles of

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  12. Who reported the appearance of symptoms of the Bakane disease in uninf...

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  13. In the above observation, the active substances were later identified ...

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  14. Cytokinesis promoting active substance is called kinetin which is iden...

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  15. Who observed that from the internodal segments of tobacco stems the ca...

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  16. During mid-l960s, three independent researchers reported the purificat...

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  17. Bending of stem/coleoptile towards light or shoot of potted plant plac...

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  18. Who first suggested presence of growth regulatory chemicals in plants ...

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  19. Plant grwoth hormones extracted from a fungus and a fish are respectiv...

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  20. Which one of the following is a natural growth inhibitor ?

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