Abstract

Yield experiment was carried out during the Summer season 2009 on
the field of planting & develop Roselle. The experiment was aimed at
evaluating the response of Roselle cultivars to different levels of N in
combination . Five rates of nitrogen (0, 30, 60, 90 and 120 kg N / ha) were
factorially combined with deep red and pure white cultivars of Roselle in a
randomized complete block design arrangement with three replications.
Application of N significantly (p<0.05) increased plant height, number of
leaves, branches, pods, calyx and seed yields Roselle. Calyx yield of 2.95
t/ha fresh weight with a corresponding dry matter of 1.22 t/ha were
significantly different (p<0.05) when 120 kg N/ha was applied to pure white.
Similarly, significantly differences (p<0.05) were recorded in the seed yields
of Roselle cultivars in 60 kg N/ha produced optimum levels of 680.0 kg/ha
for deep red and 680.0 kg/ha for pure white cultivars seed yields in 120 kg
N/ha .