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Field experiments were conducted during the cropping seasons of 2003 and 2009 on the Teaching and Research Farm of the Department of Crop production and Horticulture Federal University of Technology, Yola to evaluate the growth potentials of three cultivars of roselle (Hibiscus sabdarriffa L) (using two plant population densities of 60cmx30cm and 80cmx40cm. The experiment design was a Randomized Complete Block Design replicated four times. Parameters such as plant height at 3,5,7, plant height at harvests and number of leaves at 3,5,and 7 weeks after sowing were taken. The parameters measured at required height showed significant differences between cultivars and spacing. Plants with the tallest height of 58.75cm were observed from cultivars 3 (Pink) at a spacing of 80cmx40cm in 2008 cropping season, while in 2009 cropping season, the tallest plant of 21.75cm were recorded from pink cultivar at a spacing of 80cmx40cm. There was significant interaction at P=0.05 for plant height, number of leaves/plants at 3,5, and 7 weeks after sowing. There was also significant interaction between cultivars and spacing at P=0.05 for plant height and other parameters measured at 3, 5,and 7weeks after sowing. Due to high performance of cultivar (3) at a spacing of 80x40cm it is recommended that cultivar 3 which is pink and spacing of 80x40cm in 2008 and 2009 cropping season be adopted in Yola and its environs for growth parameter of roselle

iosr journal of agriculture and veterinary science

Evaluation of Growth Potentials Of Three Cultivars Of Roselle (Habiscus Sabdariffa L.)As Influenced By Plant Population Density in Yola, Adamawa State, Nigeria