Clonal Propagation of Khaya senegalensis: The Effects of Stem Length, Leaf Area, Auxins, Smoke Solution, and Stockplant Age

Table 7

Rooting ability (percentage of rooted cuttings, number of roots, length of the longest root, and number of secondary roots per rooted cutting) of Khaya senegalensis cuttings in response to exposure to various concentrations of smoke solution for one hour. Means ± SE (standard error) followed by the same letter(s) are not significantly different at the 5% level according to Tukey’s multiple comparison test.

Smoke solution (%)	Rooting percentage	No. roots/rooted cutting	Longest root length (cm)	No. secondary roots
0	47 ± 6a	2.7 ± 0.4a	6.44 ± 0.75a	16.2 ± 3.8a
20	27 ± 17a	2.3 ± 1.3a	7.92 ± 0.66a	8.1 ± 3.3a
40	60 ± 16a	2.0 ± 0.4a	4.32 ± 0.40a	4.1 ± 1.1a
60	53 ± 14a	2.7 ± 0.6a	6.10 ± 0.59a	6.9 ± 2.9a
80	67 ± 9a	2.2 ± 0.3a	3.95 ± 0.90a	7.5 ± 2.6a
100	53 ± 12a	2.4 ± 0.4a	3.99 ± 1.45a	6.7 ± 2.6a