Clonal Variation in Early Growth Performance of Adansonia digitata L.

Abstract

Aim: To evaluate the early growth performance of 18 grafted Adansonia digitata (baobab) clones, in order to identify superior genotypes for cultivar development. Place and Duration of the Study: The study was conducted in the semi-arid region of sub-Saharan Africa, and growth data were collected during the first three years after grafting. Methodology: Growth traits assessed were tree survival, tree height, number of primary branches, and annual height increment. Data was recorded annually for three years. Results: Significant differences (P < 0.05) were observed among clones for all traits, indicating strong genetic influence. At one year of age, tree height ranged from 18.1 to 37.6 cm; at two years, from 28 to 63.7 cm; and at three years, from 42.2 to 78.5 cm, showing a consistent overall growth trend. Mean annual height increment varied from 5.85 cm/year to 24.38 cm/year, reflecting large genetic differences between the tested clones. Conclusion: The findings highlight the importance of clonal testing and selection for identifying superior baobab clones that farmers can cultivate to improve productivity and household income.