Odewale et al
Greener Journal of Agricultural Sciences Vol. 2 (8), pp.378-380, December 2012
Relationship between Canopy Sizes and Shapes and the Productivity and Yield of Coconut (Cocos nucifera L.) Varieties in Nigeria
Odewale J. O., Odiowaya G., Agho Collins, Enaberue L. and Okoye M.N.
Plant Breeding Division, NIFOR, P.M.B. 1030 300001,
Corresponding Author’s E-mail: olusesanodewale @ yahoo.com
Coconut varieties typically exhibit different crown canopy
shapes and sizes. Three canopy shapes were identified in the
coconut hybrid seed garden of the Nigerian Institute for Oil
Palm Research (NIFOR), Benin City, Nigeria. The crown canopy
size and shape could influence the photosynthetic efficiency
of a crop, hence its productivity and yield. Given the
differential productivity and nut yield of the varieties, we
attempted to establish the relationship between crown canopy
size and shape to the productivity of the different coconut
varieties. Coconut seed nut yield records from the coconut
hybrid seed garden was related to the crown canopy shape and
sizes of the varieties. About 59% of each class of tall and
83.70% to 89.19% of the dwarf palms produced matured fruits
during the period of observation. The least mean nut yield
was found among coconut with vertical canopy shape of every
coconut varieties considered, while the highest mean nut
yield was found in the semi spherical canopy shape of all
the coconut varieties evaluated, except in the yellow dwarf.
The result indicates that although there is no statistical
difference in the yield of the various canopy shapes, the
semi spherical canopy seem to produce more nuts than coconut
with other canopy shapes. In all cases the Tall coconut were
more susceptible to lethal yellowing infection.
Keywords: coconut, canopy size, seed garden, and nut yield.
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