Q. No.
The function which is not performed by Ethylene is
(1) Breaking of seed and bud dormancy
(2) Initiates germination in peanut seeds
(3) Improving the internode length of sugarcane
(4) Promotes rapid internode and petiole elongation in deep water rice plants
Sprouting of potato, helping the leaves or upper parts of the rice shoot to remain above water, promotes root growth and root hair formation and helping plants to increase their absorption surface. Which of the following hormones is involved in such physiological effects?
(1) Ethylene
(2) ABA
(3) GA
(4) Auxins
Ethylene is not involved in which of the following physiological effect?
(1) Initiate flowering and for synchronising fruit-set in pineapples
(2) Induces flowering in mango
(3) The most widely used PGR in agriculture as regulates so many physiological processes
(4) Help overcome the apical dominance
The most widely used compound as source of Ethylene is
(1) Ethephon
(2) Etiope
(3) Ethyl Methyl carbon
(4) Epitope
Ethephon
Which of the following is not correct?
(1) In an aqueous solution, it is readily absorbed and transported within the plant and release ethylene slowly
(2) Hastens fruit ripening in tomatoes and apples
(3) Accelerates abscission in flowers and fruits
(4) Promotes male flowers in cucumbers thereby increasing the yield
Ethephon
(1) Thinning Cotton, Cherry and Walnut
(2) Promotes female flowers in cucumber
(3) Hastens the fruit ripening in tomatoes and apples
(4) All of these
Abscisic Acid
Which of the following is not correct?
(1) Acts as general plant growth inhibitor and an inhibitor of plant metabolism
(2) Inhibits seed germination
(3) Stimulates the opening of stomata in the epidermis
(4) Increases the tolerance of plants to various kinds of stresses
ABA plays an important role in except
(1) Seed development
(2) Maturation and dormancy
(3) Helps seeds to withstand desiccation and other factors unfavorable for growth
(4) Antagonist to Cytokinin
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