3.1 Effect of hormone and media on rooting of cuttings of C. collinum
Rooting percentage of C. collinum in Soil-sand medium was highest in a 0.8% IBA treatment and number of roots in the 1% IBA treatment (Table i). Rooting percentage in Pine-bark medium was highest in the Control (0% IBA concentration) while number of roots in the 1% IBA treatment (Table i).
Table i: Effect of hormone and media on rooting of cuttings of C. collinum
IBA concentration (%)
|
Soil-sand
|
Pine bark
|
Sand
|
|
Rooting percentage
|
No. of roots
|
Rooting percentage
|
No. of roots
|
Rooting percentage
|
No. of roots
|
Control
|
16.0 ± 0.2
|
5.4 ± 0.9
|
29.0 ± 0.3
|
4.0 ± 0.7
|
17.0 ± 0.2
|
5.9 ± 0.7
|
0.8
|
24.0 ± 0.2
|
4.6 ± 0.6
|
10.0 ± 0.2
|
3.6 ± 0.8
|
21.0 ± 0.1
|
6.0 ± 1.2
|
1
|
17.0 ± 0.2
|
6.2 ± 0.7
|
9.0 ± 0.2
|
5.0 ± 1.1
|
0.8 ± 0.2
|
4.1 ± 0.7
|
Rooting percentage and number of roots in sand medium was highest in the 0.8% IBA treatment (Table i). Rooting percentage and number of roots in C. collinum was significantly affected by the interaction of medium and IBA treatments (p = 0.000).
The highest rooting percentage of cuttings was in Pine bark medium with no hormone applied while the lowest in sand treated with 1% IBA concentration (Table i).
Highest rooting percentage in soil-sand medium was observed when treated with 0.8% IBA, Pine bark medium in the control while sand medium in 0.8 IBA concentration (Table i).
The highest number of roots in Soil-sand and Pine bark media was observed among cuttings treated in 1% IBA, while in Sand medium among cutting treated with 0.8% IBA (Table i).
3.2 Effect of hormone and media on rooting of cuttings of C. molle
Rooting percentage of C. molle in Soil-sand medium was highest in the Control (0% IBA) while number of roots in the 1% IBA treatment (Table ii). Rooting percentage in Pine bark medium was highest in the 1% IBA concentration. The number of roots in the Pine bark medium was highest in the 1% IBA treatment (Table ii).
Table ii: Effect of hormone and media on rooting of cuttings of C. molle
IBA concentration (%)
|
Soil-sand
|
Pine bark
|
Sand
|
|
Rooting percentage
|
No. of roots
|
Rooting percentage
|
No. of roots
|
Rooting percentage
|
No. of roots
|
Control
|
43.0 ± 0.3
|
3.7 ± 0.4
|
12.0 ± 0.2
|
3.2 ± 0.9
|
37.0 ± 0.2
|
3.3 ± 0.7
|
0.8
|
36.0 ± 0.3
|
4.6 ± 0.6
|
0
|
-
|
13.0 ± 0.2
|
5.1 ± 1.0
|
1
|
4.6 ± 0.5
|
30.0 ± 0.2
|
20.0 ± 0.04
|
3.9 ± 0.7
|
16.0 ± 0.04
|
4.2 ± 0.8
|
Rooting percentage in sand medium was highest in the control (0% IBA treatment) while the number of roots was highest in the 0.8% IBA medium (Table ii). Rooting percentage of C. molle was significantly influenced by the interaction of medium and IBA treatments (p = 0.000). The highest rooting percentage was achieved in the cuttings that were not treated with any hormone (control) and propagated in Soil-sand rooting medium.
The highest number of roots in soil-sand and pine bark media was observed among cuttings treated in 1% IBA, while in sand medium among cutting treated with 0.8% IBA. There was no observed rooting under pine-bark rooting medium with 0.8% IBA concentration (Table ii).
3.3 Effect of hormone and media on rooting of cuttings of P. thonningii
Rooting percentage and number of roots of P. thonningii cuttings in Soil-sand medium was highest in the Control (0% IBA) treatment (Table iii).
Table iii: Effect of hormone and media on rooting of cuttings of P. thonningii
IBA concentration (%)
|
Soil-sand
|
Pine bark
|
Sand
|
|
Rooting percentage
|
No. of roots
|
Rooting percentage
|
No. of roots
|
Rooting percentage
|
No. of roots
|
Control
|
27.0 ± 0.04
|
8.1 ± 0.6
|
0
|
0
|
18.0 ± 0.2
|
4.2 ± 0.8
|
0.8
|
12.0 ± 0.3
|
5.6 ± 1.0
|
0
|
0
|
9.0 ± 0.2
|
4.0 ± 1.1
|
1
|
8.0 ± 0.2
|
6.1 ± 1.0
|
14.0 ± 0.2
|
4.±0.8
|
5.0 ± 0.1
|
2.7 ± 1.6
|
There was no rooting in the Pine bark medium in the control and 0.8% IBA treatment. Rooting only occurred in the 1% IBA treatment in Pine bark medium. Rooting percentage in sand medium was highest in the control (0% IBA treatment). Similarly, the number of roots in the sand medium was highest in the 0.8% IBA medium (Table iii). Rooting of P. thonningii was significantly influenced by the interaction of medium and IBA treatments (p = 0.000).
The highest rooting percentage of cuttings was achieved in cuttings that were not treated with hormone (control) and propagated in soil-sand rooting medium. The lowest rooting percentage was recorded in cuttings treated with 1.0% IBA concentration and propagated in sand rooting medium. The highest number of roots in soil-sand and sand media was observed among the cuttings that were not treated with any IBA, while in Pine-bark with those treated with 1% IBA.
3.4 Effect of rooting hormone and media on root length of C. collinum, C. molle, P. thonningii
Root length of C. collinum cuttings in Soil-sand medium was highest in the Control (0% IBA) treatment while in the Pine bark and sand media in the 0.8% IBA treatment (Table iv). Root length of C. collinum cuttings were significantly influenced by the interaction of hormone and media (P = .006).
Table iv: The effect of media and IBA concentration on root length of C. collinum
IBA concentration (%)
|
Soil-sand
|
Pine bark
|
Sand
|
|
Mean root length
|
SE
|
Mean root length
|
SE
|
Mean root length
|
SE
|
Control
|
6.6
|
1.4
|
4.5
|
1.1
|
3.9
|
1.1
|
0.8
|
4.5
|
1.0
|
6.4
|
0.8
|
10.5
|
1.9
|
1
|
2.9
|
1.2
|
4.7
|
1.8
|
5.0
|
1.2
|
The highest mean root length was recorded in cuttings that were treated with 0.8% IBA propagated in sand rooting media. The lowest mean root length was recorded under cuttings propagated in pine-bark not treated with IBA (control). Root length of C. molle cuttings in Soil-sand medium was highest in the Control (0% IBA) treatment while in the Pine bark in the control and sand when treated with 0.8% hormone (Table v).
Table v: The effect of media and IBA concentration on root length of C. molle
IBA concentration (%)
|
Soil-sand
|
Pine bark
|
Sand
|
Mean root
length
|
Mean root length
|
Mean root
length
|
Control
|
8.4 ± 1.0
|
3.0 ± 1.4
|
4.1 ± 1.0
|
0.8
|
4.5 ± 1.0
|
0
|
13.1 ± 1.0
|
1
|
8.2 ± 0.8
|
11.6 ± 1.2
|
6.8 ± 1.2
|
Root length of C. molle cuttings was significantly influenced by the interaction of hormone and media (P = .006). The highest mean root length was recorded with cuttings that were treated with 0.8% IBA propagated in sand rooting media. The lowest mean root length was recorded under cuttings propagated in pine-bark treated with 0.8% IBA.
Root length of P. thonningii cuttings in Soil-sand medium was highest in the Control (0% IBA) treatment while in the Pine-bark medium in the 1% IBA treatment and sand medium in the 0.8% IBA treatment (Table vii). Root length of P. thonningii cuttings was significantly influenced by the interaction of hormone and media (p = 0.006).
The highest mean root length was recorded with cuttings that were treated with 0.8% IBA propagated in sand rooting media. The lowest mean root length was recorded under soil-sand rooting medium treated with 0.8% IBA concentration. There was no occurrence of rooting under pine-bark rooting medium treated with 0.0% and 0.8% IBA concentration (Table vii).
Table vi: The effect of media and IBA on root length of P. thonningii
IBA concentration (%)
|
Soil-sand
|
Soil-sand
|
Sand
|
|
Mean root length
|
Mean root length
|
Mean root length
|
Control
|
7.6 ± 0.9
|
0
|
3.7 ± 1.2
|
0.8
|
2.6 ± 0.9
|
0
|
8.5 ± 1.0
|
1
|
4.7 ± 1.6
|
4.2 ± 1.2
|
4.9 ± 2.5
|
3.5 Effect of rooting hormone and media on root collar diameter of C. collinum, C. molle and P. thonningii
Root collar diameter of C. collinum cutting in Soil-sand medium was highest in the Control (0% IBA) treatment while in the Pine bark medium in the 1% IBA treatment and sand medium in the 0.8% IBA treatment (Table vii).
Root collar diameter of C. collinum cuttings was significantly influenced by the interaction of rooting hormone and media (P = 0.035). The highest root collar diameter was recorded in cuttings treated with 1% IBA propagated in Pine bark rooting medium. The lowest root collar diameter was recorded under cutting propagated in soil-sand treated with 1.0% IBA concentration (Table vii).
Table vii: The effect rooting hormone and media on root collar diameter of C. collinum
IBA concentration (%)
|
Soil-sand
|
Pine bark
|
Sand
|
|
Mean root collar diameter
|
Mean root collar diameter
|
Mean root collar diameter
|
Control
|
2.6 ± 0.2
|
2.7 ± 0.2
|
2.0 ± 0.1
|
0.8
|
2.0 ± 0.2
|
2.5 ± 0.2
|
3.2 ± 0.3
|
1
|
1.8 ± 0.2
|
3.6 ± 0.3
|
2.8 ± 0.2
|
Root collar diameter of C. molle cuttings in Soil-sand and pine-bark media was highest in the 1% IBA treatment and sand medium in the 0.8% IBA treatment (Table viii). Root collar diameter of C. molle cuttings was significantly influenced by the interaction of rooting hormone and media (P = .04). The highest mean root collar diameter was registered with cuttings that were treated with 1% IBA propagated in pine-bark rooting media. The lowest root collar diameter was recorded in the cuttings propagated in pine bark and in sand treated with no IBA treatment. There was no observed rooting of cuttings propagated in pine-bark treated with 0.8% IBA (Table viii).
Table viii: The effect rooting hormone and media on root collar diameter of C. molle
IBA concentration (%)
|
Soil-sand
|
Pine bark
|
Sand
|
|
Mean root collar
diameter
|
Mean root collar diameter
|
Mean root collar diameter
|
Control
|
2.5 ± 0.1
|
2.0 ± 0.2
|
2.0 ± 0.2
|
0.8
|
2.3 ± 0.2
|
0
|
2.7 ± 0.3
|
1
|
2.9 ± 0.1
|
3.3 ± 0.2
|
2.3 ± 0.2
|
Root collar diameter of P. thonningii cuttings in Soil-sand medium was highest in the 0% IBA (control) treatment and Pine-bark and sand media in the 1% IBA treatment (Table ix). Root collar diameter of P. thonningii cuttings was significantly influenced by the interaction of IBA and rooting media (P < .035).
Table ix: The effect rooting hormone and media on root collar diameter of P. thonningii
IBA concentration (%)
|
Soil-sand
|
Pine bark
|
Sand
|
|
Mean root collar
diameter
|
Mean root collar diameter
|
Mean root collar diameter
|
Control
|
2.8 ± 0.1
|
0
|
2.2 ± 0.2
|
0.8
|
1.5 ± 0.2
|
0
|
2.0 ± 0.3
|
1
|
2.4 ± 0.3
|
2–6 ± 0.2
|
2.8 ± 0.4
|
The highest mean root collar diameter was registered with cuttings that were not treated with IBA (0% IBA Hormone) propagated in soil-sand rooting media. There was no observed rooting of cuttings propagated in pine-bark treated with 0.8% and 0% IBA (Table ix).