Table 6. Growth data of Deli x Yangambi cross during the prenursery phase.

Variable Before 
planting
Days after planting
37 51 63 77 90 126
Plumule length 2.3 ±0.5            
Radicle length 4.2 ±1.3 21.1 ±3.7 23.3 ±2.3 27.1 ±1.9 28.9 ±3.0 32.1 ±6.9 31.1 ±3.8
No of adventicious roots 3.2 ±1.7 13.8 ±5.3 9.5 ±6.0 4.3 ±3.4 6.3 ±2.4 1.5 ±1.0 1.3 ±1.0
Length of adventicious roots   2.8 ±1.5 2.4 ±1.0 1.4 ±1.0 25.5 ±2.0 3.4 ±1.3 0.9 ±0.2
No of primary roots     1.0 ±0.1 1.0 ±0.1 1.3 ±0.3 1.8 ±0.2 4.2 ±0.2
Length of primary roots     2.6 ±3.4 6.0 ±4.8 8.8 ±3.7 13.4 ±3.4 18.0 ±1.4
Bulb diameter (mm)   6.40 ±0.26 6.59 ±0.28 6.74 ±0.40 7.40 ±0.45 8.83 ±0.70 13.07 ±1.00
Length of the youngest completed formed leaf (cm)     14.4 ±0.6 16.8 ±1.5 24.0 ±1.5
Width of the youngest completed formed leaf (cm)     3.9 ±0.2 4.2 ±0.3 6.6 ±0.3
No of leaves totally open         2.0 ±0.1 2.7 ±0.1 4.2 ±0.3
Root dry weight (g)   0.1089 ±0.0139 0.1728 ±0.0138 0.2121 ±0.0387 0.3010 ±0.0480 0.3830 ±0.0308 0.8304 ±0.0819
Aerial part dry weight (g)   0.1771 ±0.0129 0.3161 ±0.0234 0.4534 ±0.0990 0.6551 ±0.0647 1.1001 ±0.2184 2.8594 ±0.2209
Total dry weight(g)   0.2860 ±0.0973 0.4890 ±0.0614 0.6656 ±0.0517 0.9562 ±0.0191 1.4831 ±0.2985 3.6898 ±0.1895

        Numbers are means and standard deviation of a sample of 24 plants, except for data taken before planting, where the sample was of 256 germinated seeds.