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

Which of the following is not correct about Gibberellins?

1.Another kind of promotors PGR

2.There are more than 100 Gibberellins

3.Found in Fungi and higher plants

4.The first and most intensively studied form of Gibberellins is GA2

Which of the following statements is correct?

1.All GAs are basic

2.All GAs are Acidic

3.Most of the GAs are Acidic

4.Most of the GAs are basic

Which of the following is not a Physiological effect of Gibberellins?

1.Increase in the length of the grape stalks

2.They cause fruits like Apple to elongate and improve it's shape

3.They also delay senescence

4.They can shorten the market period for fruits

Which of the following is a Physiological effect of Gibberellins?

1.GA3 is used to speed up the malting process in brewing industry

2.They promote senescence

3.They shorten the market period

4. Induce parthenocarpy in tomatoes