Influence of competition, irrigation levels and nitrogen fertilization on protein content and protein yield of three spring wheat (Triticum aestivum L.) cultivars

1987 ◽  
Vol 37 (2) ◽  
pp. 127-131 ◽  
Author(s):  
B. R. Rajeswara Rao ◽  
Rajendra Prasad
Keyword(s):  
Triticum Aestivum ◽  
Protein Content ◽  
Spring Wheat ◽  
Nitrogen Fertilization ◽  
Triticum Aestivum L ◽  
Protein Yield ◽  
Irrigation Levels

Effects of nitrogen fertilization on grain protein content, nitrogen uptake, and nitrogen use efficiency of six spring wheat (Triticum aestivum L.) cultivars, in relation to estimated moisture supply

1992 ◽  
Vol 72 (1) ◽  
pp. 235-241 ◽  
Author(s):  
L. E. Gauer ◽  
C. A. Grant ◽  
L. D. Bailey ◽  
D. T. Gehl
Keyword(s):  
Triticum Aestivum ◽  
Protein Content ◽  
Spring Wheat ◽  
Nitrogen Fertilization ◽  
N Uptake ◽  
Triticum Aestivum L ◽  
Nitrogen Use ◽  
Moisture Supply ◽  
Use Efficiency ◽  
N Use

The effects of nitrogen fertilization on protein content, N uptake and N use efficiency of grain for six spring wheat cultivars were evaluated over a N application range of 0–200 kg ha−1, under two moisture supply levels, on Black Chernozemic soils in Manitoba. Moisture supply influenced protein content, protein yield, and grain N use efficiency (NUE) of applied fertilizer. Increased moisture supply lowered protein content and increased protein yield and NUE. Increasing N level increased protein, N uptake and decreased NUE, but effects depended on moisture supply. Cultivar differences occurred, especially at the higher moisture level.Key words: Protein, Triticum aestivum L., nitrogen uptake, nitrogen use efficiency, moisture

The effect of the environment on the grain colour and quality of commercially grown Canada hard white spring wheat, Triticum aestivum L. ‘Snowbird’

2013 ◽  
Vol 93 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Odean M. Lukow ◽  
Kathy Adams ◽  
Jerry Suchy ◽  
Ron M. DePauw ◽  
Gavin Humphreys
Keyword(s):  
Triticum Aestivum ◽  
Protein Content ◽  
Spring Wheat ◽  
Triticum Aestivum L ◽  
Climatic Conditions ◽  
White Wheat ◽  
Highly Correlated ◽  
Hard White Wheat ◽  
Grain Colour

Lukow, O. M., Adams, K., Suchy, J., DePauw, R. M. and Humphreys, G. 2013. The effect of the environment on the grain colour and quality of commercially grown Canada hard white spring wheat, Triticum aestivum L. ‘Snowbird’. Can. J. Plant Sci. 93: 1–11. One of the main advantages of hard white wheat is its lighter grain colour, which can produce visually appealing lighter-coloured end-products. However, grain colour variation can be a concern due to a lack of consistency. This study was carried out to determine the effect of the environment on commercially grown hard white wheat grain colour and wheat grading. More than 1100 samples of the cultivar Snowbird were collected from elevators across western Canada during the 2003 to 2007 crop years. Grain and wholemeal colours were recorded using the CIE L* a* b* scale. Samples were analyzed for grain properties including dimensions, hardness and protein content. Variation in grain colour was mostly attributed to annual fluctuations in climatic conditions (71–79%) and agro-climates (13–18%). Grain ranged in colour from white and bright to dark grey-red. Grain brightness was very highly correlated with grain yellowness. Grain a* and b* were inversely related to grade indicating that higher quality grain was redder and more yellow than lower grades. Warmer and drier environments showed reduced grain yields but produced on average better quality grain with higher protein content.

EFFECT OF IRRIGATION AND NITROGEN FERTILIZER ON THE YIELD AND PROTEIN CONTENT OF SOFT WHITE SPRING WHEAT

1986 ◽  
Vol 66 (2) ◽  
pp. 281-289 ◽  
Author(s):  
J. B. BOLE ◽  
S. DUBETZ
Keyword(s):  
Triticum Aestivum ◽  
Protein Content ◽  
Spring Wheat ◽  
Nitrogen Fertilizer ◽  
Field Experiments ◽  
Triticum Aestivum L ◽  
Optimum Level ◽  
Fertilizer N ◽  
Target Yield ◽  
Soft White Spring Wheat

Field experiments were conducted over four growing seasons in southern Alberta to develop improved irrigation and nitrogen fertilizer recommendations for soft white spring wheat (Triticum aestivum L.). Irrigation to provide available water in the root zone to maturity maintained acceptably low protein content of soft wheat fertilizer-N plus soil test NO3-N levels from 140 to 208 kg ha−1. Nitrogen fertilizer increased protein content in all 4 yr of the study and increased yields each year except 1981 when the soil contained a high level of NO3-N. The protein content was not raised above the level considered acceptable for the domestic Canadian market (10.5%, moist basis) unless fertilizer rates in excess of the economic optimum level were applied. Fertilizer-N response curves were developed for each cultivar, irrigation treatment, and year combination. These were used to show the relationship between yield and the level of fertilizer N plus soil NO3-N which would result in economic optimum yields of soft white spring wheat of acceptable protein content. The results suggest N rates can be increased about 30 kg ha−1 for each t ha−1 increase in the target yield of the producer.Key words: Wheat (soft white spring), Triticum aestivum L., irrigation, nitrogen fertilizer, protein, target yield

EFFECTS OF NITROGEN ON YIELD AND PROTEIN CONTENT OF MANITOU AND PITIC WHEATS GROWN UNDER IRRIGATION

1972 ◽  
Vol 52 (6) ◽  
pp. 887-890 ◽  
Author(s):  
S. DUBETZ
Keyword(s):  
Triticum Aestivum ◽  
Protein Content ◽  
Spring Wheat ◽  
Total Protein ◽  
Maximum Rate ◽  
Triticum Aestivum L ◽  
Yield Response ◽  
High Protein Content ◽  
Grain Yields ◽  
Yield Responses

In experiments with two cultivars of spring wheat (Triticum aestivum L.) conducted under irrigation at two locations for 2 years, average grain yields of Pitic 62 were 30% higher than those of Manitou but protein content was 20% lower. Pitic produced 3% more total protein than Manitou. Yield responses to N fertilizer ranged from nil to 2139 kg/ha for Manitou and from 941 to 2778 kg/ha for Pitic. The maximum rate of application of N from which a yield response was obtained by Manitou was 110 kg/ha and by Pitic was 165 kg/ha. In 1 year at one location the protein content of Pitic was lower from the first N increment and that of Manitou from the first two increments than those of wheats from plots that received no N. The maximum rate of N from which protein increases were obtained was 220 kg/ha for both cultivars. It is possible to grow wheat with high protein content on irrigated land.

YIELDS AND PROTEIN TRENDS OF SPRING WHEAT (Triticum aestivum L.) ON THE CANADIAN PRAIRIES, 1961–1982

1990 ◽  
Vol 70 (1) ◽  
pp. 33-44 ◽  
Author(s):  
D. W. STEWART ◽  
L. M. DWYER
Keyword(s):  
Triticum Aestivum ◽  
Protein Content ◽  
Spring Wheat ◽  
Triticum Aestivum L ◽  
Canadian Prairies ◽  
Hard Red Spring Wheat ◽  
Nonlinear Fitting ◽  
Annual Variations ◽  
Percent Protein ◽  
Technology Effects

Mathematical models of hard red spring wheat (Triticum aestivum L.) were used to account for effects of weather on annual variations in yield and protein content on the Canadian prairies. When weather effects were calculated, other relatively slow-changing trends became much clearer. Results indicate that yields in the three major soil zones have increased an average of 806 kg ha−1, while protein contents have decreased (1.0% from 1961 to 1982). Both trends show the largest change at the beginning of the period (1961) with a levelling off at the end (1982). There seems to be an inverse relationship between yield and protein, with technology contributing to yield increases and at the same time decreasing protein content by dilution although this was not conclusively proved. Decreases in soil organic matter or other soil factors may be contributing to the protein decline but these factors were not required to explain the observed patterns in yield and percent protein. The results indicated that the potential to produce high protein wheats has decreased during the period 1961–1982.Key words: Nonlinear fitting, physical model, technology effects, protein dilution

Kanata hard white spring wheat

2007 ◽  
Vol 87 (4) ◽  
pp. 879-882 ◽  
Author(s):  
D G Humphreys ◽  
T. F. Townley-Smith ◽  
E. Czarnecki ◽  
O. M. Lukow ◽  
B. Fofana ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Protein Content ◽  
Bread Wheat ◽  
Spring Wheat ◽  
Triticum Aestivum L ◽  
Head Blight ◽  
Canadian Prairies ◽  
Cultivar Description ◽  
End Use ◽  
Spring Wheat Cultivar

Kanata is an early-maturing hard white spring wheat (Triticum aestivum L.) that meets the end-use quality and kernel visual distinguish ability specifications of the Canada Western Hard White Spring wheat class. Kanata was evaluated in the Central Bread Wheat Cooperative Test (1998–2000), and was found to be adapted to the wheat-growing regions of the Canadian prairies, particularly the shorter season areas. Kanata yielded less than check cultivars AC Majestic, AC Barrie, Harvest, and McKenzie but had similar grain yield compared with Neepawa and Roblin. In the Central Bread Wheat Cooperative Test, Kanata was resistant to the prevalent races of leaf rust, moderately resistant to stem rust, loose smut, and common root rot. Kanata is similar to Neepawa in its reaction to Fusarium head blight. End-use quality tests indicated that Kanata had similar grain and flour protein content as other check cultivars but had 1% less protein content compared to Roblin. Key words: Triticum aestivum L., Canada Western Hard White, hard white spring wheat, cultivar description, yield, disease resistance

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