NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice
Which of these is not a function of the gaseous hormone?
Options
- AInitiation of flowering and synchronization of fruit-set in pineapples
- BPromotion of male flowers in cucumbers thereby increasing its yield
- CBreaking the bud dormancy and promoting sprouting of potato tubers
- DPromotion of root growth and root hair formation, thus helping the plants to increase their absorption surface
Correct answer
B. Promotion of male flowers in cucumbers thereby increasing its yield
Step-by-step solution
Ethylene breaks seed and bud dormancy, initiates germination in peanut seeds, sprouting of potato tubers. Ethylene promotes rapid internode/petiole elongation in deep water rice plants. It helps leaves/ upper parts of the shoot to remain above water. Ethylene also promotes root growth and root hair formation, thus helping the plants to increase their absorption surface. Ethylene is used to initiate flowering and for synchronizing fruit-set in pineapples. It also induces flowering in mango. It promotes female flower