Phenological characteristics of 10 selected tree and shrub species were studied in Aliero Local Government Area, Kebbi State, Nigeria. Drought conditions affected the various phenophases of several species. Leaf-fall in majority of tree species began in December with a peak in January and February. Leaf initiation began in February with a peak in March and April before premonsoon showers. Flowering activity in these species continued throughout the year with two peaks; one in March and April and second in July and August. Although the peak of fruit maturation for these species was observed in September and October, the dehiscence of fruits was completed before pre-monsoon showers in April.
Key words: Phenology, Tree, Shrub, Species, Maturation and Aliero
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