The aqueous calyx extract of Hibiscus sabdariffa (HS) has a folk reputation as an antihypertensive agent. On account of its antioxidant properties and probably high K+ concentration, we hypothesized that HS may attenuate the development of salt-induced hypertension. Sprague-Dawley rats (n=8 each) were treated for 12 weeks as follows: control (normal diet + water), salt-loaded (8% salt diet + wa...

The effects of aqueous extract of Hibiscus sabdariffa calyces on haematology and pathological changes in some selected organs during experimental Trypanosoma congolense infection of rats were investigated. Three groups of rats were intraperitoneally infected with T. congolense (Karu stock). One group was administered with the aqueous extract and another given a solution of vitamin C in drinking...

Ethanol extracts of two indigenous Nigerian plants Hibiscus sabdariffa and Azadirachta indica extracted using the soxhlet extraction method, were used to stain malaria parasites. The extracts were made with different percentages of ethanol (96%, 75%, 50% and 30%) and diluted to various concentrations. There was no previous record known on the use of H. saddariffa & A indica in staining intestin...

The effect of aqueous extract of Hibiscus sabdariffa L. on the activity of alkaline phosphatase and uric acid in the liver of Rattus novergicus was studied in this research. The result from this study revealed that the activities of alkaline phosphatase in the serum slightly increased (18.00±3.39) when compared with that of the control (16.37±3.50) at (P<0.05) (Table. 1), though this was not st...

The hibiscus mealybug, Maconellicoccus hirsutus Green, was first reported in the Caribbean in 1994 in Grenada. This was the first record of the insect as a major pest in the New World. By the beginning of 2001, the pest had spread to over 25 territories from Guyana and Venezuela in the South to Bahamas in the North. The pest has also extended its distribution to Central America (Belize) and Nor...

A field experiment was conducted to assess the optimum inter- and intra-row spacing on growth, yield and yield component of Roselle (Hibiscus sabdariffa L.) in 2014/15 cropping season at Wondo Genet Agricultural Research Center experimental site (at Wondo Genet station). Two inter-row spacing (60 and 90 cm) and three intra-row spacing (30, 60 and 90 cm) were evaluated using two varieties, WG-Hi...

This research was undertaken to investigate the in vitro antibacterial properties of aqueous Hibiscus sabdariffa leaf extract against some selected reference bacterial strains. The initial disc diameter 5mm. Zones inhibition produced by Hisbiscus ranged from 1mm at 500mg/ml 13mm 1000mg/ml. No zone however 62.5 250mg/ml L. MonocytogenesATCC7644, S. typhimuriumATCC14028, flexneri ATCC120233 and P...

A field experiment was conducted to assess the optimum inter- and intra-row spacing on growth, yield and yield component of Roselle (Hibiscus sabdariffa L.) in 2014/15 cropping season at Wondo Genet Agricultural Research Center experimental site (at Wondo Genet station). Two inter-row spacing (60 and 90 cm) and three intra-row spacing (30, 60 and 90 cm) were evaluated using two varieties, WG-Hi...