English
Karnataka Board PUCPUC Science Class 11

Auxins are growth hormones capable of promoting cell elongation. They have been used in horticulture to promote growth, flowering and rooting. - Biology

Advertisements
Advertisements

Question

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

Short/Brief Note
Advertisements

Solution

Auxins which are made artificially are called synthetic auxins, e. g. 2,4-D, NAA.

shaalaa.com
Plant Growth Regulators - Physiological Effects of Plant Growth Regulators
  Is there an error in this question or solution?
Chapter 15: Plant Growth and Development - Exercises [Page 88]

APPEARS IN

NCERT Exemplar Biology [English] Class 11
Chapter 15 Plant Growth and Development
Exercises | Q 5. c. | Page 88

RELATED QUESTIONS

Ethylene is used for ______.


Coconut water contains ______.


Apples are generally wrapped in waxed paper to ______.


The term synergistic action of hormones refers to ______.


To increase sugar production in sugarcanes, they are sprayed with ______.


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.


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.

Anti-auxins


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.


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 induces femaleness in flowers of cucumber


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×