Which of the following effects of auxins on plants is used for commercial application

1.  Callus formation

2.  Curvature of stem

3.  Induction of root formation in stem cuttings

4.  Stem growth

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4
Correct Answer :

Induction of root formation in stem cuttings


Explanation :
No Explanation available for this question

Which of the following hormone is concerned chiefly with root initiation

1.  IBA

2.  GA3

3.  ABA

4.  Kinetin

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4
Correct Answer :

IBA


Explanation :
No Explanation available for this question

For rooting on stem cuttings or on leaves of Bryophyllum the growth regulator used is

1.  Indole acetic acid

2.  Gibberellic acid

3.  Caroten

4.  Lycopene

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4
Correct Answer :

Indole acetic acid


Explanation :
No Explanation available for this question

Epigeal germination is found in

1.  Jowar

2.  Pea

3.  Castor

4.  Maize

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4
Correct Answer :

Castor


Explanation :
No Explanation available for this question

In general the length (duration) in hours of a critical photoperiod is comparatively

1.  Shorter for LDP

2.  Longer for SDP

3.  Same for both SDP and LDP

4.  Both (A) and (B)

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4
Correct Answer :

Both (A) and (B)


Explanation :
No Explanation available for this question

Which of the following hormone is translocated to other parts of the plant and exibit a polar movement

1.  Auxin

2.  GA3

3.  Zeatin

4.  ABA

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4
Correct Answer :

Auxin


Explanation :
No Explanation available for this question

Who amongst the following is a discoverer of auxin

1.  Skoog

2.  Went

3.  Thimann

4.  Sachs

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4
Correct Answer :

Went


Explanation :
No Explanation available for this question

Ethylene gas

1.  Is a saturated hydrocarbon

2.  Slows down ripening of apples

3.  Retards ripening of tomatoes

4.  Speed up maturation of fruits

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4
Correct Answer :

Speed up maturation of fruits


Explanation :
No Explanation available for this question

Inhibition of seed germination can be done by

1.  GA

2.  IAA

3.  ABA

4.  Cytokinins

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4
Correct Answer :

ABA


Explanation :
No Explanation available for this question

Deterioration process in plants, that naturally terminates their functional life is called

1.  Abscission

2.  Wilting

3.  Plasmolysis

4.  Senescence

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4
Correct Answer :

Senescence


Explanation :
No Explanation available for this question
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