leaf fall occurs when a. auxin decreases b. gibberellin decreases c. auxin increases d. ABA decreases

CBSE Class 11-science Answered

leaf fall occurs when a. auxin decreases b. gibberellin decreases c. auxin increases d. ABA decreases

Asked by kaintkaku | 21 Apr, 2018, 11:12: PM

Expert Answer

Due to a reduction in photosynthesis, this may trigger the abscission of leaves (separation of leaves) and this abscission layer is produced when auxin content falls below a minimum causing leaf or other plant part to fall off.

Answered by Sivanand Patnaik | 22 Apr, 2018, 03:51: PM

Answered Unanswered My Questions My Answers

CBSE 11-science - Biology

which plant harmon found in gas form

Asked by supekarnandini1006 | 27 Apr, 2020, 10:58: AM

ANSWERED BY EXPERT

CBSE 11-science - Biology

Which plant hormone promotes opening of stomata?

Asked by yashu.loki5453 | 02 Dec, 2018, 07:47: PM

ANSWERED BY EXPERT

CBSE 11-science - Biology

mycorrhiza promote plant growth by a. absorbing inorganic ions from soil b. helping plant in using atmospheric nitrogen c.protect plant from infection d. serving as PGR

Asked by kaintkaku | 23 Apr, 2018, 01:10: AM

ANSWERED BY EXPERT

CBSE 11-science - Biology

why coralloid roots are negatively geotropic

Asked by kaintkaku | 23 Apr, 2018, 01:07: AM

ANSWERED BY EXPERT

CBSE 11-science - Biology

leaf fall occurs when a. auxin decreases b. gibberellin decreases c. auxin increases d. ABA decreases

Asked by kaintkaku | 21 Apr, 2018, 11:12: PM

ANSWERED BY EXPERT

CBSE 11-science - Biology

Name the plant and its part from which auxin was isolated by F. W. Went.