Question

Enlist five categories of phytohormones with its uses

Answer 1

AUXIN
> controls plants response to light and gravity
> moves away from light and towards gravity
> leads to cell differentiation and enlargement
> makes root grow away from sunlight in a slow manner
> makes stem grow towards sunlight in a fast manner


GIBBERELINS
> in the presence of auxin , leads to cell differentiation and enlargement
> leads to growth of fruits
> stem elongation and leaf broadening
>breaks dormancy


CYTOKININS
> leads to cell division
> growth of fruits
> breaks dormancy
> promotes opening of stomata

ABSCISIC ACID

> promotes dormancy
> promotes senescence
> promotes closing of stomata
> growth inhibitor


Ethylene
> ripening of fruits