1CHUKUNDA, F. A, AND 2EMIRI, U.N.
1Department of Forestry & Environment
Rivers State University Science and Technology, Port Harcourt.
2Bayelsa State College of Education, Education, Okpoma, Brass Island
The effects of burning, intercropping and dry grass mulching on the performance of two
cocoyam (tannia) cultivars were investigated. The study indicated that burning reduced the
fresh weights of leaves of cocoyams irrespective of the cultivar while increasing the number
of cormels per corm but reduced corms/cormel weight. However, the frequency of root and
corm rot (cocoyam decline disease) was least in burnt than in unburnt plots irrespective of
the cultivar. In all the cultivars (“Eduhie” and Edeocha) studied, cocoyam sole-crops had
the least frequency of occurrences of the disease than the intercropped plants. The disease
was not recorded in sole crops mulched with 10 tonnes/ha for all the cultivars.
Recommendations based on this research and the findings of other workers on burning,
intercropping and grass mulching are made.
Keywords: Inter-Cropping, Cultivars, Cocoyam Declined Disease (CDD), Post-Harvest,