BIOLOGY
HORMONES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
As a hormone in rooting powder
|
|
|
To induce flowering
|
|
|
To stimulate ripening of fruit
|
|
|
As a selective weedkiller
|
Detailed explanation-1: -"Gibberellic Acid (GA3) Stimulates Flowering in Caladium hortulanum Birdsey.” HortScience 14 (1): 72–73.
Detailed explanation-2: -Gibberellins promote flowering in Arabidopsis through the activation of genes encoding the floral integrators SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1), LEAFY (LFY), and FLOWERING LOCUS T (FT) in the inflorescence and floral meristems, and in leaves, respectively.
Detailed explanation-3: -Gibberellic Acid Signaling Is Required to Induce Flowering of Chrysanthemums Grown under Both Short and Long Days.
Detailed explanation-4: -It stimulates cell division and expansion in response to light or dark. GAs regulate flower initiation in some LD and biennial species and inhibit flowering of some perennials, and its development and it is essential for male and female fertility but not for the specification and differentiation of floral organs.
Detailed explanation-5: -Florigen, a proteinaceous hormone, functions as a universal long-range promoter of flowering and concurrently as a generic growth-attenuating hormone across leaf and stem meristems.