Browsing College of Agriculture and Bioresources by Title
Now showing items 1897-1916 of 2616
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The quality of organic matter in Saskatchewan soils
(1984-02-13)Nitrogen mineralized from the active organic N fraction of soil organic matter sustained the requirements of cultivated crops for approximately 70 years after breaking the prairie grassland. However, in the past decade, ... -
Quantification of a novel biotrophic mycoparasitic fungus using genus specific real-time PCR for biocontrol of phytopathogenic Fusarium graminearum in wheat root under controlled conditions
(2009-02-25)Fusarium species are well-known causal agents of Fusarium root-rot, Fusarium head blight (FHB), and Fusarium damaged kernels (FDK) diseases in Saskatchewan and other provinces of Canada. Our goal is to develop quantitative ... -
Quantification of bioactive compound content in advanced fenugreek lines selected in Alberta: levels of galactomannan
(2007-03-01)Fenugreek (Trigonella foenum-graecum L.) was initially introduced to Alberta as a spice and forage crop. Numerous animal and clinical studies have associated the medicinal properties of the plant with galactomannan, diosgenin ... -
Quantification of spray drift from aerial applications of pesticide
(2005-02-17)As pesticides become more biologically active and their use becomes more widespread the impacts of spray drift become a topic of considerable interest. The drifting of sprays is a complex process; factors influencing it ... -
Quantifying denitrification on a field-scale in hummocky terrain
(1989-02-16)Down-slope and cross-slope curvature and elevation were used to identify nine landscape elements for a slough-focused basin in hummocky terrain near Hafford, Saskatchewan. Denitrification was measured at monthly intervals ... -
Quantifying nitrogen fixation of agroforestry shrub species by the 15N natural abundance and dilution techniques under the greenhouse condition
(2013-03-05)The land use systems of the province of Saskatchewan has agroforestry trees such as sea buckthorn (Hippophae rhamnoides L.), caragana (Caragana arborescens Lam.) and buffaloberry (Shepherdia argentea Nutt.) as important ... -
Quantitative expression of cold-acclimation genes in wheat (Triticum aestivum L.)
(2006-03-02)Winter wheat (Triticum aestivum L.) is seeded in the fall, regrowth resumes in spring, culminating in an early summer harvest. Yield is generally 20-25% higher than spring wheat. However, winter damage/kill can reduce ... -
RAPD and AFLP markers linked to anthracnose resistance gene in PI 320937 lentil (Lens culinaris Medik.)
(2002-02-20)Colletotrichum truncatum (Schwein.) Andrus & W.D. Moore is the causal fungus for anthracnose disease in lentils. A germplasm accession, ‘PI 320937’, is among the lines used as a resistance source to develop cultivars in ... -
RAPD markers for Ascochyta resistance in lentil
(1995-02-23)Genetic linkage of RAPDmarkers with genes for resistance to Ascochyta blight was studied in two crosses of lentil. DNA was extracted from F, plants of both crosses (ILL 5588 x Eston and Indianhead x Eston). Screening for ... -
Rapid assessment of soil salinity
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The rate of oxidation of elemental sulphur fertilizers
(1980-02-18)Uncropped field experiments were begun in June, 1979, and continued from 12 to 15 weeks after the addition of sulphur fertilizer on three soils, to determine the rate of conversion of elemental sulphur to soluble sulphate. ... -
Rates of denitrification as influenced by irrigation
(1991-02-21)The rate of denitrification, using the acetylene blockage method, was determined before and after irrigation at two sites; at Birsay on a clay-loam soil and at Outlook on a sandy soil. At Birsay, 110 kg N/ha as urea was ... -
Rates of denitrification as influenced by irrigation
(Department of Soil Science, University of Saskatchewan, Saskatoon, SK, 1991-06-01)The rate of denitrification, using the acetylene blockage method, was determined before and after irrigation at two sites; at Birsay on a clay-loam soil and at Outlook on a sandy soil. At Birsay, 110 kg N/ha as urea was ... -
Rates of soil redistribution associated with Soil Zones and slope classes in southern Saskatchewan
(1990-02-22)Using 137Cs redistribution techniques we examined the relationship between mean rates of soil redistribution and average slope characteristics at twenty-one areas in the Brown, Dark Brown, and Black Chernozem Soil Zones ...