A plant tissue is undergoing senescence, which PGR would be found in it?
Large amounts of ethylene is synthesized in
[A] Ripening fruit
[B] Newly grown leaf
[D] Axial bud
What are the influences of ethylene on plants?
[A] horizontal growth of seedlings
[B] swelling of the axis
[C] apical hook formation in dicot seedling
What is the of ethylene effect on plant organs, especially leaves and flowers?
[A] promotes abscission
[B] promotes senescence
What is the effect of ethylene on ripening fruit?
[A] increases rate of growth
[B] increase in rate of respiration
Rise is rate of respiration is called
[A] respiratory climax
[B] respiratory rise
[C] respiratory climactic
Which of the following PGR is used to break seed and bud dormancy?
Ethylene initiates germination in which seed?
Sprouting of potato tubers is initiated by which of the following PGR?
How does ethylene help plants to increase their absorption surface?
[A] promote growth of root
[B] promote formation of root hair
Ethylene is used to initiate flowering and for synchronizing fruit set in which fruit?
Ethylene induces flowering in which fruit?
Which of the following is the most widely used PGR in agriculture?
Which of the following is a characteristic of ethephon?
[A] readily absorbed
[B] transported within the plant
[C] releases ethylene slowly
Ethephon hastens fruit ripening in
[D] Both (b) and (c)