(i) Temperature; should be between 15-27degrees Celsius;warm temp. Required for root zone & cool temperature required for aerial shoots.
(ii) Relative humidity; - Requires high humidity which lower transpiration rate.
(iii) Light intensity; requires high light intensity for root production
(iv) Oxygen supply; Plenty of O 2 required for root formation.
(v) Chemical treatment; rooting hormones e.g. auxins promote production of the roots
(vi) Leaf area; Soft words required a lot of leaves for photosynthesis, hardwood cuttings produce roots better within leaves;
johnson mwenjera answered the question on February 1, 2018 at 14:51
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