Write function of cytokinin,ethylene and absiscisil acid
Answers
Cytokinin: plant hormones (phytohormone) that promote cell division, or cytokinesis, in plant roots and shoots.
Ethylene: plant hormones stimulating or regulating the ripening of fruit, the opening of flowers, and shedding of leaves.
Abscisic acid: plant hormone produced in terminal buds. This slows plant growth and protect the dormant buds during winter.
Hope this helps!!
●Cytokinin:
1)Cytokynins are most effective in breaking the dormancy of buds.
2)Sytokynins enhance the synthesis of DNA and RNA.
3) It promotes the opening of stomata in leaves.
4)It induge cell division in presence of auxin.
5)It inhabits the growth of apical buds by acting as anti auxin.
● Ethylene:
1)It helps in ripening of food.
2)It breaks bud and seed dormancy in many plants.
3) Application of ethylene increases the number of female flower.
4)It promote senescence of leaves.
5)It stimulates the formation of abscission layer in leaves,flower and fruits.
● Abscisic Acid:
1) It inhabits the activity of growth promoters.
2)It promotes ethylene synthesis.
3) It inhabits flowering inyong day plants but stimulates flowering in short day plant.
4)It induce dormancy in seeds and buds.
5)It increases resistance to cold and other types of stresses. So, it is also called stress hormone.
||||||||Hope it will help you|||||||||||||