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Plant phenology and its relation to the cool semi-arid condition of Sana'a
(
Qatar University
, 1997 , Article)
In the cool semi-arid highland areas of Sana'a a plant phenological study of forty two species revealed that there was one major
outburst of plant emergence corresponding with the first period of the heavy rainfall which ...
Plant Population Density Effects On Yield Of Sorghum Grown In A Dry-Land Farming System
(
Qatar University
, 1996 , Article)
Plant population studies in arid regions are very sparse and not well documented. A prerequisite in growing a successful sorghum (Sorghum bicolor [L.] Moench) crop is to obtain an adequate plant population. The response ...
Effects of the expected sea level rise on avicennia marina L: a case study in Qatar
(
Qatar University
, 1995 , Article)
A simulation of the expected sea levels rise was carried out by imposing a state of protracted flooding on seedlings of the mangrove species Avicennia marina L. under natural conditions. The imposed flooding resulted in ...
The relationship between heavy metal concentration and soil mycoflora in the Gizan region, Saudi Arabia
(
Qatar University
, 1997 , Article)
Soil samples were collected from different places from the Gizan region, Saudi Arabia, and analyzed mechanically and chemically for mineral content. The soils were highly alkaline and sandy in texture in all cases. The ...
Ecophysiological Characteristics, Distribution, and Nutritional Value of Desert Range Plants in Qatar
(
Qatar University
, 1993 , Article)
Despite the scarcity of water, desert ranges of Qatar can support a characteristic diversity of species and an all-year-round supply of feed. A correlation between carbon dioxide fixation mechanism, distribution of species, ...
Weed Communities Of Date Palm In Eastern Arabia
(
Qatar University
, 1992 , Article)
The present study deals with the recognition and description of the weed communities of date palm plantations in Al-Hassa Oasis, . Eastern Arabia. Thirty three communities are recognized. They are classified, after the ...
Single Cell Protein Production From Beet Pulp By Mixed Culture
(
Qatar University
, 1992 , Article)
A mixed culture of Trichoderma reeseiand Kluyveromyces marxianuswas found to be more efficient for single cell protein (SCP) production (51%) from beet pulp (BP) than the other tested mixed cultures containing T. reeseior ...
Condition and trend of a depression-type habitat In rainfed desert rangelands of Qatar In response to fertilizer application
(
Qatar University
, 1994 , Article)
Characteristics of a rainfed depression-type habitat in desert ranges, and its response to fertilizer application were studied. A single fertilizer application at a rate of 75 Kg ha1 prior to the rainy season improved range ...
Evaluation of methods for screening of extracellular cellulase In filamentous fungi
(
Qatar University
, 1996 , Article)
Twenty-eight fungal species belonging to fifteen genera were isolated from Saudi Arabian soil and were screened for the production of extracellular cellulase enzymes. Cleared-zone technique, cellulose azure method and agar ...
Ecological Notes On The Floristic Composition And Endemic Species Of Saint Catherine Mountains, South Sinai, Egypt
(
Qatar University
, 1995 , Article)
The present study is aimed at (1) giving complete list of all plant speciec growing in Saint Catherine mountains, (2) studying the relationship between species number and the amount of precipitation at the time of study ...