Three independent researches reported which of the following PGR?

1.ABA

2.Ethylene

3.Auxin

4.Cytokinin

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

Auxin means

1.To escape

2.To slow

3.To grow

4.To fasten

Auxins was first isolated from

1.Human serum

2.Human urine

3.Human stool

4.Human saliva

Which of the following is not isolated from plants?

1.NAA

2.IAA3

3.IBA

4.GA3

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

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

For tea plantations, hedge-making, which of the following PGR is used?

1.Auxins

2.Cytokinins

3.GA3

4.ABA

2,4-D widely used to

1.Kill dicot trees

2.Kill monocot weeds

3.Kill dicot weeds

4.Kill monocot shrubs

Which of the following is not a function performed by Auxin?

1.Controls Xylem differentiation

2.Helps in cell division and cell growth inhibition

3.Used as herbicide

4.Used to prepare weed free lawns by gardeners