Which of the following is not an action of ethylene?

The PGR used to initiate flowering and for synchronizing fruit-set in pineapples is:

1. Abscisic acid
2. Cytokinin
3. Auxin
4. Ethylene
 

Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in

1. vessels and tracheid differentiation

2. leaf abscission

3. annual plants

4. floral parts
 

Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I                                                        Column II
I. Malting in brewing                                       1. Cytokinins

II. Parthenocarpy in tomatoes                          2. Gibberellins

III. Overcoming apical dominance                    3. Ethylene

IV. Female flowers in Cucumbers                      4. Auxins

Codes:
I II III IV
A. 4 2 3 41
B. 2 1 4 3
C. 2 4 1 3
D. 4 2 1 3

C₂H₄ or Ethylene are …...or derivative of….

1.Indol compounds

2.Gases

3.carotenoids

4.Terpenes

Which of the following hormones is common in both the categories of plant promoter and plant inhibitor?

1.GA

2.ABA

3.Auxin

4.Ethylene

Which of the following is wrong?

1.ABA is Growth inhibiting regulator

2.Ethylene could fit either of the groups, inhibitors and activators.

3.Auxins, GA and Cytokinins are plant promoters

4.Ethylene is largely a promoter of growth activities

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

Which of the following hormones is synthesised in large amounts by tissues undergoing senescence and ripening fruits?

Influences of Ethylene in plants do not include