(ii) (a) 104mm -+ 1mm (from 103mm to 105mm)
(b) 164 mm
(iii) A. Removal of apical bud led to less auxin synthesis hence less auxin migrated to the stem;
leading to increase in length of lateral bud;
B. Removal of apical bud led to less auxin migrating to the stem but with addition of G. A
(Gibberellic acid) there is more cell elongation leading to increase in length of the lateral branches;
C. Presence of apical bud led to more synthesis of Auxin; leading inhibition of elongation of
lateral buds hence to slow rate of increase in length of lateral branches;
(iv) To act as a control experiment.
(v) - Help / stimulate formation of side branches.
- Ends dormancy in buds.
- Activate growth of adventitious root.
- Brings about parthenocarpy / initiated flowering / setting fruits without fertilization.
- Break seed dormancy
- Affect leaf expansion.
- Retard leaf abscission.
(vi) - Activates enzymes during germination thus breaking seed dormancy.
- Promote cell division / elogation
sharon kalunda answered the question on
March 21, 2019 at 13:32