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Select the correct statements (s) regard...

Select the correct statements (s) regarding auxins.

A

Auxins promote root growth only at extermely low concentrations and they inhibit root growth at higher concentrations.

B

Concentration of auxins which is inhibitroy to root growth causes initiation of adventitions roots from the nodes or basal regions of stem.

C

Auxins such as NA A and IBA are used to induce rooting in stem cuttings.

D

All of these

Text Solution

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The correct Answer is:
D
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  1. Which of the following effects of auxins on plants is the basis for th...

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  2. Which of the following hormones is used in root formation on stem cutt...

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  3. Select the correct statements (s) regarding auxins.

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  4. Apical dominance is dicot plants is due to the presence of morein the ...

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  5. The term 'auxin precursor' refers to

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  6. Read the given statements and select the correct option. (i) Darwin ...

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  7. In the process of apical dominance, lateral buds are unable to grow in...

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  8. Decapitation i.e. removal of shoot tips in a plant usually results in

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  9. In tea plantations and hedge making, gardeners trim the plants regular...

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  10. Removal of auxin source demonstrates that leaf abscission is by auxin,...

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  11. The hormone responsible for apical dominance is

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  12. Functions of auxins include

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  13. To get a carpet like grass, lawns are mowed regularly, this is done to

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  14. Arificial application of auxins like IA A, IBA and NA A to unpollinate...

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  15. The term 'antiauxin' refers to

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  16. Which of the following statements regarding gibberellins is incorrect?

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  17. The fruits can be left on the three longer using GA so as to extend th...

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  18. To speed up the malting process in brewing industry the growth hormone...

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  19. Read the given statements and select the correct option. statement 1...

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  20. Spraying sugarcane with gibberellins increases the yield by as much as...

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