Question

five functions of each photo hormone ;auxin,glbberllin ,cytobinin ,abscisic acids,ethylene

Answer 1

functions of auxin
(1) promote stem elongation
(2) auxin maintains apical dominance I.e. inhibit growth of lateral buds
(3) auxin increase storage of solutes inside the cell
(4) it helps in cell enlargement
(5)it helps in cell division

functions of gibberalin
(1) it helps in stem and leaf growth
(2) dormancy
(3) it helps in seed germination
(4) helps in fruit development
(5) helps in flowering in the plant

function of cytokinine
(1) it delays ageing in the plant
(2)cell division
(3) cell elongation
(4)differentiation
(5)seed dormancy

functions of absisic acid
(1) bud dormancy
(2) seed dormancy
(3) rooting
(4) control growth
(5) starch hydrolysis:Abscisic acid inhibits gibberellin mediated amylase formation during germination of cereal grains


functions of ethylene
(1)inhibit growth
(2)senescence
(3)breaks dormancy
(4)wilting of leaves
(5)fruit ripening