Table 2. Ranking of progenies according to their incidence level of Crown Disease / Common Spear Rot

Origin Crosses
Deli x Deli 68
Deli x AVROS 74
Deli x Ekona 23
Deli x Nigeria (Calabar and others)  26
Deli x Dami compositae 19
Deli x Tanzania 13
Deli x URT 2
Bamenda x AVROS 6
Bamenda x "varios" 6
Ekona x AVROS 11
Ekona x "Ekona" 13
Ekona x varios 9
Dami x compositae 8
URT (Ulu Remis, Ténera) 1
Calabar x Calabar 7
Calabar x "varios" 6
Tanzania x AVROS 12
Tanzania x Tanzania 3
Tanzania x Ekona 7
Tanzania x "Several" 5
E. oleifera 30
E. guineensis OP 11
Compact Origin Progenies 28
AVROS x AVROS 3
Deli/AVROS/Dumpy 9