The relation between the date of heading of Nigerian sorghums and the duration of the growing season.

Published online
04 Dec 1968
Content type
Journal article
Journal title
Journal of Applied Ecology

Curtis, D. L.

Publication language
Africa South of Sahara & Nigeria


A variety indigenous to northern Nigeria yields best in its own locality, the time of flowering coinciding with the end of the rainy season. If the variety is grown further south or north it will flower at the same time and if this does not correspond with the end of the rains in the new locality the yield will be reduced. This adaptation to the end of the rains is probably a photo-periodic effect.

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