The EB varieties (TMS 30572,
TMS 97/2205 and TMS 98/0505) were used as female
parents based on their ability to produce flowers
profusely while the LB varieties (TMS 30555, NR
8212 and NR 8083) were used as the male parents.
Classification of the parent materials into EB and LB
categories was based on earlier evaluation carried out
at Umudike.