C2H4 or Ethylene are …...or derivative of….
In the living plant body, the PGRs can be broadly divided into two groups. This classification is actually based on
Plant growth promotors are not involved in
1.Cell division, cell enlargement
2.Pattern formation, seed formation
4.Fruiting and Flowering
Plant growth promotor is not
The PGRs of the other group which play an important role in plant growth inhibiting activities is not
4.All of these
Which of the following hormones is common in both the categories of plant promotor and plant inhibitor?
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 promotor of growth activities
The Discovery of PGRs
1.Four discovery were accidental one was with a planned experiment
2.Three discovery were accidental Two were with a planned experiment
3.Two discovery were accidental Three were with a planned experiment
4..All five we're accidental
Phototropism is firstly studied by
1.Charles Darwin and his son Francis Darwin
2.Charles Darwin and his friend Francis Darwin
3.Charles Darwin and his brother Francis Darwin
4.Charles Darwin and his colleague Francis Darwin
……...is the site of transmittable influence that caused the bending of the entire……..