Trusted since 2008
LoginRegister
Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Browse exam papers
Or go directly to:
Class notes Holiday assignments Topical questions Other resources

List and explain the factors affecting rooting of cutting

List and explain factors that promote rooting of cuttings in crop propagation.

Answers

joseph
a. temperature – warm temperatures are required –cool temperature are important for aerial part of the
cutting. The day temperature being 22-27°C and night temperature 15-21° C
b. relative humidity- high humidity is which lower the transpiration rate – it increases and maintain
leaf turgidity all the time – cutting should be rooted in green houses or under the shaddy condition-
or even sprayed with water to keep it moist
c. light intensity- high intensity is required to produce roots since light affect the rate of
photosynthesis. Hardwood cutting do well in dark. Since they have amount of stored carbohydrate and
therefore rooting is excellent in darkness
d. oxygen supply – medium must be well aerated.
e. chemical treatment – these are hormone that promote the production of roots in cutting such as
indoleacetic acid (IAA) indoleacetic (IBA) and (NAA) Naphthaleneacetic acid
f. leaf area – softwood required a lot of leaves for photosynthesis while hardwood - produce roots
better than without leaves.
joseph rimiru answered the question on November 8, 2017 at 18:39

Answer Attachments

Next:  What are the disadvantages of using seeds as planting material?

Previous: what are the factors considered when selecting plant materials?

View more Agriculture Questions and Answers  |  Return to Questions Index

Exams With Marking Schemes

Related Questions