Three independent researches reported which of the following PGR?

1.ABA

2.Ethylene

3.Auxin

4.Cytokinin

Subtopic:  Abscisic Acid |
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During mid 1960s, the purification and chemical characterisation of which of the following PGR was performed?

1.ABA

2.GA

3.Auxin

4.Cytokinins

Subtopic:  Abscisic Acid |
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Cousins confirmed the release of a volatile substance from ripened oranges that

1.Hastened the ripening of already ripened bananas

2.Hastened the ripening of unripened banana

3.Slowed the ripening of unripened bananas

4.Slowed the ripening of oranges

Subtopic:  Ethylene |
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Auxin means

1.To escape

2.To slow

3.To grow

4.To fasten

Subtopic:  Growth Hormones & Auxin |
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Auxins was first isolated from

1.Human serum

2.Human urine

3.Human stool

4.Human saliva

Subtopic:  Growth Hormones & Auxin |
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Which of the following is not isolated from plants?

1.NAA

2.IAA3

3.IBA

4.GA3

Subtopic:  Growth Hormones & Auxin | Auxin Function |
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For all natural and synthetic compounds involved in growth, which of the following term is used

1.Auxein

2.Auxin

3.GA3

4.GAs

Subtopic:  Growth Hormones & Auxin | Auxin Function |
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Auxins

Find the odd one.

1.Initiate rooting in stem cuttings

2.Promote flowering e.g. Pineapples

3.Prevent fruit and leaf drop at early stages

4.Prevent the abscission of older mature leaves and fruits

Subtopic:  Growth Hormones & Auxin | Auxin Function |
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In most higher plants, the growing apical bud inhibits the growth of …….. or axillary buds, a phenomenon called………….

1.Lateral, lateral Dominance

2.Lateral, Apical Dominance

3.Apical, Lateral Dominance

4.Apical, Apical Dominance

Subtopic:  Growth Hormones & Auxin | Auxin Function |
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For tea plantations, hedge-making which of the following PGR is used?

1.Auxins

2.Cytokinins

3.GA3

4.ABA

Subtopic:  Growth Hormones & Auxin | Auxin Function |
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