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Cytological Studies On The Effect Of The Herbicide "Dual" On Allium Cepa
(
Qatar University
, 1988 , Article)
Dual is widely used in Egypt as an active herbicide against annual grass weeds in soybean, sunflower, sugar beet and maize. Cytological studies have been carried out to show the effect of the herbicide on cell division in ...
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. ...
Mycoflora and mycotoxins of peanut (arachis hypogaea l.) Seeds in egypt. II - mycotoxin production by thermophilic or thermotolerant fungi
(
Qatar University
, 1987 , Article)
Twelve species and one variety which belong to 6 genera were identified from 40 peanut seed samples using a dilution—plate method on 1% glucose—Czapek's medium at 4S°C. Aspergillus (6 species and 1 variety) followed by ...
Seasonal Fluctuation Of Non-Rhizosphere Soil Fungi In Wheat Fields In Egypt
(
Qatar University
, 1983 , Article)
The study aims at intensive survey of fungal floras of non-rhizospheric soil in wheat fields in El-Minya Governorate over the periods December 1976 - May 1977 and December 1977 - May 1978.
At 28°C, using 1% glucose-Czapek's ...
Mycoflora associated with dry dates in upper egypt ii. Osmophilic fungi and test of osmophilic ability
(
Qatar University
, 1988 , Article)
19 fungal species which belong to 8 genera were collected from 30 dry date samples of which 9 species appeared on all sucrose concentrations (20%, 40% and 60%) namely, Aspergillus amstelodami, A. niger, A. raber, A. sydowii, ...
Some Aspects Of The Autecology Of Panicum Turgidum Forsk
(
Qatar University
, 1983 , Article)
The germination of Panicum turgidum seeds was tested under different conditions. They showed ability to germinate under a range of temperatures from 25-42°C. The maximum percentage of germination was 45%, at 30°C. The ...
Studies in bidirectional movement in vicia faba l.
(
Qatar University
, 1984 , Article)
Surgery was used to investigate bidirectional movement in a single vascular bundle of Vicia faba L. In one experiment it was found that radiocarbon had moved upwards and downwards via one isolated bundle when leaf one and ...
Middle-Upper Devonian And Lower Carboniferous Miospore Assemblages From Western Desert Of Egypt
(
Qatar University
, 1985 , Article)
Important morphological features of some spore assemblages from Middle-Upper Devonian and Lower Carboniferous of Western Desert of Egypt are described. Comparing the present assemblages with those obtained from other ...
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. ...
Mycoflora and mycotoxins of sunflower(helianthus annuus l.) Seeds in egypt 1. Sugar fungi and natural occurrence of mycotoxins
(
Qatar University
, 1986 , Article)
Eighteen genera and sixty-three species, in addition to three varieties were isolated from thirty six samples of sunflower seeds collected from different places in Egypt. Aspergillus and Penicillium followed by Rhizopus ...