Search
Now showing items 21-30 of 77
Effect of level of relative humidity on fungi and germination capacity of paddy (oryza sativa l.) Grains in egypt
(
Qatar University
, 1993 , Article)
The changes in the composition of paddy grain-borne fungi in the germination capacity, and in the moisture content of paddy grains at various levels of relative humidity (r.h.) (~ 0-100%) stored at 20°C for 1, 2, 3 and 4 ...
The Availability Of Iron In Soil And Plants Treated With Organic And Inorganic Fertilizers In The Jordan Valley
(
Qatar University
, 1995 , Article)
This paper deals with the rcults of a study carried out on "Phoseolus vulgaris - Wed" as an indicator of chlorosis. The study took place between July 1990 and July 1992, and for two crop seasons each year. Six kinds of ...
Attenuation Of Bacillus Cereus Spores By Different Factors
(
Qatar University
, 1993 , Article)
The spore suspension of Bacillus cereus K] ]s was exposed to different concentrations of NaCl. NaNo3 and NaNC>2 as curing agents. The spores were able to tolerate 10% NaCl. Up to 4%, NaNC>3 had little or minor effects on ...
Production Of Extracellular Enzymes By Some Soil Yeasts
(
Qatar University
, 1997 , Article)
This study investigated the ability of soil yeasts, Geotrichum candidum, Geotrichum capitatum and Williopsis californica to produce extracellular enzymes (amylase, cellulase and protease) in vitro compared with that of a ...
Nature Of The Aflatoxin B, - Induced Inhibition Of Photosynthesis In Chlorella Fusca (Chlorococcales, Chlorophyta)
(
Qatar University
, 1994 , Article)
Treatment with Aflatoxin E^ (AFBi) resulted in inhibition of photosynthetic oxygen evolution in Chlorella fusca Shih.et Krauss. Treatments also induced a marked reduction of both chlorophyll and carotenoid contents. ...
Effect of Fertilizer Application on Diversity and Production of Weeds in Crop-Less Fields
(
Qatar University
, 1993 , Article)
The present study aims at assessing the effect of fertilizer application (with monofactorial deficiency of nitrogen, phosphorus, potassium and lime) on the diversity and production of weeds in cultivated but crop-less ...
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 ...
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 ...
Floating capital pattern and biomass slope allocation method in the life history of calotropis procera (AIT.) AIT. F.
(
Qatar University
, 1992 , Article)
Plants of the woody perennial Calotropis procera (Asclepediaceae) were grown from seed to seed-set in an open field. Smith's slope allocation and fractional-allocation or percentage methods were used to study dry matter ...
Fungi Associated With The Hair Of Goat And Sheep From El-Bahrain
(
Qatar University
, 1995 , Article)
The mycoflora on the hair in 25 samples of each of goats and sheep collected from El - Bahrain was analysed using two isolation methods at 25 !C. Seventy species and 3 varieties belonging to 31 genera were collected from ...