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Which is produced during water stress th...

Which is produced during water stress that brings about stomatal closure ?

A

Ethylene

B

Abscisic acid

C

Furulic acid

D

Coumarin.

Text Solution

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The correct Answer is:
B
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DINESH PUBLICATION ENGLISH-TRANSPORT IN PLANTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS
  1. In which type, the stomata are present exclusively on the upper surfac...

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  2. Number of stomata present per cm^(2) of a common leaf is aboout

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  3. Which is produced during water stress that brings about stomatal closu...

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  4. In which of the following plants metabolism would be hindered if leave...

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  5. The following percentage of water absorbed by herbaceous plants is los...

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  6. Transpiration is least in (a) Good soil moisture (b) High wind velo...

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  7. Transpiration is high under

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  8. Potometer is a device used for measuring rate of

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  9. Wilting appears due to excessive

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  10. Transpiration is regulated by movements of

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  11. Transpiration differs from evaporation in

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  12. Rate of transpiration is reduced with

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  13. Guttation is mainly due to

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  14. Which one of the following plants keep its stomata open during the nig...

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  15. Which one gives the most valid and recent explanation for stomatal mov...

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  16. The stomatal type of cereals which open only for a few hours during th...

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  17. In most of the thin leaf mesophytes, the leaf stomata open during day ...

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  18. Rate of transpiration is dependent upon

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  19. On a hot summer day cooling of plant occurs due to

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  20. Conversion of starch to organic acids is required for

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