Search
Now showing items 41-50 of 113
Investigations on the growth abnormalities of medicago sativa l. Under field conditions
(
Qatar University
, 1996 , Article)
Morphological growth abnormalities were pursued and studied in field-grown alfalfa (Medicago sativa L.) in Al-Kharj agricultural area, south east of Riyadh. Significant differences between normal and abnormal plants were ...
Enzyme production and antibiotic susceptibility of propionibacterium acnes and p. Granulosum from acne vulgaris patients and healthy persons
(
Qatar University
, 1996 , Article)
Seventeen strains of Propionibacterium acnes and ten strains of P. granulosum were isolated from acne patients, in addition to ten isolates of each species from healthy persons. All strains were examined for their enzymatic ...
Incidence of Nosocomial infection of Pseudomonas aeruginosa in General Basrah Hospital in Basrah City / IRAQ
(
Qatar University
, 1999 , Article)
One thousand and two hunderd twenty six specimens were obtained from patients and 516 swabs from different surfaces of environments Basrah General Hospital were collected. Sixty five patients were suffering from Pseudomonas ...
Edaphic properties and soil cyanobacteria of South Western Saudi Arabia.
(
Qatar University
, 1997 , Article)
Three sites at each of five localities, in the South Western Region of Saudi Arabia were surveyed during 1992, for their soil physico-chemical properties, and cyanobacterial communities. The soils were moderately calcareous, ...
The Antibiotic Activity Of Some Aquatic Plants And Algal Extracts From Jordan
(
Qatar University
, 1991 , Article)
The antimicrobial activity of the extracts of three fresh water green algae, four marine green algae, two brown marine algae and five red marine algae from the Jordanian part of the Aqaba Gulf, together with four aquatic ...
Phyto-Ecological Observations In Northern Oman
(
Qatar University
, 1985 , Article)
The present study has evolved out of a limited field work during a short visit to Oman. It is an attempt to record more detailed data on the plant communities and their habitat features in three sectors of northern Oman. ...
Zinc Tolerance and Accumulation in Aspergillus oryzae Penicillium citrinum and Rhizopus stolonifer isolated from Saudi Arabian Soil
(
Qatar University
, 1997 , Article)
Aspergillus oryzae, Penicillium citrinum and Rhizopus stolonifer isolated from Taif soil, Saudi Arabia could survive in a liquid medium containing up to 500 ug/ml Zn. Aspergillus oryzae and Penicillium citrinum were more ...
Sulphur Oxidation In Saudi Arabian Agricultural Soils
(
Qatar University
, 1996 , Article)
Laboratory studies were conducted to determine the oxidation of elemental sulphur in eight localities of Saudi Arabian soils. The effect of sulphur application on related properties of calcareous soils in Saudi Arabia was ...
Effect Of Carbon disulphide, Acrylonitrile And Formaldehyde On Egyptian Paddy Grain-Borne Fungi
(
Qatar University
, 1988 , Article)
Fumigation, with various doses of carbon disulphide, acrylonitrile and formaldehyde for 8, 16 and 32 hours, of paddy grains indicate that formaldehyde was more toxic to the fungi than carbon disulphide and acrylonitrile. ...
Proline Accumulation In Plants Of Different Ecological Groups As A Response To Water Deficit
(
Qatar University
, 1985 , Article)
The diurnal changes in proline content were investigated in different plants including a desert shrub (Retama raetam), a halophytic grass (Spombolus virgimcus) and a cultivated crop (Zea mays). Though these species have ...