1.

Collect information about the major plant hormones from library or internet?

Answer»

Some major plant hormones and their action are given in the following table. Major plant hormones and their action.

HormonesUses
Abscisic acidClosing of stomata; seed dormancy.
AuxinsCell elongation and differentiation of shoots and roots.
CytokininsPromote cell division, promotion of sprouting of lateral buds, delaying the ageing in leaves, opening of stomata.
EthyleneRipening of fruit.
GibberellinsGermination of seeds and sprouting of buds; elongation of stems; stimulation of flowering; development of fruit, breaking the dormancy in seeds and buds.



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