IMPLICATIONS CONCERNING THE FREQUENCY OF CONTROL PLOTS IN WHEAT BREEDING NURSERIES

1968 ◽  
Vol 48 (2) ◽  
pp. 149-153 ◽  
Author(s):  
K. G. Briggs ◽  
L. H. Shebeski

Control plots of Triticum aestivum var. Manitou were grown adjacent to every plot of breeding material in three hard red spring wheat nurseries at the University of Manitoba. Simple correlations between yields were high (r =.88,.87 and.63) and significant (P.01) for control plots at 2.7-m (9-ft) centers but decreased rapidly to nonsignificance with increasing distance between plot centers. The data indicate that for the particular type of plot used, the yield of a control plot provides a good measure of the soil fertility in terms of the yielding ability of an adjacent plot.

1991 ◽  
Vol 71 (4) ◽  
pp. 1165-1168 ◽  
Author(s):  
G. R. Hughes ◽  
P. Hucl

Kenyon hard red spring wheat (Triticum aestivum L.) possesses excellent resistance to leaf rust and stem rust. Kenyon was developed using the backcross breeding method, resulting in the recovery of the maturity and wide adaptation of its recurrent parent Neepawa. Kenyon was developed at the University of Saskatchewan. Key words: Cultivar description, leaf rust, Triticum aestivum L., spring wheat


2016 ◽  
Vol 5 (2) ◽  
pp. 1
Author(s):  
Shahrokh Khanizadeh ◽  
Harvey Voldeng ◽  
Xuelian Wang ◽  
Allen Xue ◽  
Mirko Tabori ◽  
...  

Twenty-five hard red spring wheat (<em>Triticum aestivum</em>) lines, including three known cultivars used as checks, were grown in seven locations across Eastern Canada. The objective of this multi-location experiment was to evaluate selected Eastern Cereal and Oilseed Research Centre advanced lines (ECAD lines) from the Spring Wheat Breeding Program in order to identify the best lines for performance and grower trials. The lines from this trial performed very well compared to the check varieties, especially at the Ontario locations. Overall, the ECAD lines were on a par with or superior to the checks in terms of several attributes, including yield, protein content, and Fusarium head blight resistance.


2003 ◽  
Vol 51 (14) ◽  
pp. 4004-4007 ◽  
Author(s):  
Gail A. Bresnahan ◽  
Frank A. Manthey ◽  
Kirk A. Howatt ◽  
Monisha Chakraborty

1988 ◽  
Vol 2 (4) ◽  
pp. 445-455 ◽  
Author(s):  
Steven J. Carlson ◽  
William W. Donald

Effects of repeated late-fall applications of the isopropylamine salt of glyphosate at 1.7 kg ae/ha plus 0.5% (v/v) surfactant on adventitious root buds, thickened propagative roots (> 1.3 mm diam), and shoot density of Canada thistle were studied in continuous hard red spring wheat over a 4-yr period. Glyphosate suppressed Canada thistle shoot density more quickly and to a greater extent than thickened root fresh weight or root bud number. A single fall application of glyphosate drastically decreased Canada thistle shoot density for 1 yr after treatment. However, shoot density was the same as the untreated control by 2 yr after a single fall treatment. Two consecutive late-fall applications of glyphosate in 2 yr decreased Canada thistle shoot density 94% in the fall 1 yr after the last treatment. Glyphosate reduced Canada thistle thickened root fresh weight 70% in the first fall 1 yr after a single fall treatment. However, 2 yr after a single fall application of glyphosate, root fresh weight equalled the controls. Two consecutive fall applications of glyphosate reduced thickened root fresh weight 77% 1 yr after the second treatment.


2001 ◽  
Vol 84 (6) ◽  
pp. 1953-1963 ◽  
Author(s):  
Eugene J Gawalko ◽  
Robert G Garrett ◽  
Thomas W Nowicki

Abstract A monitoring program was conducted for trace elements in Western Canadian Hard Red Spring wheat (Triticum aestivum L.). Samples were selected from harvest survey samples submitted by producers from crop districts in Manitoba, Saskatchewan, and Alberta for 1996, 1997, and 1998 crops. The analytical quality control measures used in these surveys are described along with the results for Cd, Cu, Fe, Mn, Se, and Zn. Accuracy and precision for the analyses fell within the acceptable control limits. Year-to-year variations in grain chemistry were small for Cd, Mn, Se, and Zn, but Cu and Fe contents showed 12 and 9% decreases, respectively, over the 3 years. The overall variability for the plant-essential trace elements—Cu, Fe, Mn, and Zn—was low compared with that for Cd and Se. The spatial variation in crop chemistry across the Canadian Prairie wheat-producing region was greater than the year-to-year variations. Soil properties were major factors in controlling Cd and Se levels in grain.


2015 ◽  
Vol 95 (4) ◽  
pp. 799-803 ◽  
Author(s):  
P. D. Brown ◽  
H. S. Randhawa ◽  
J. Mitchell Fetch ◽  
S. L. Fox ◽  
D. G. Humphreys ◽  
...  

Brown, P. D., Randhawa, H. S., Mitchell Fetch, J., Fox, S. L., Humphreys, D. G., Meiklejohn, M., Green, D., Wise, I., Fetch, T., Gilbert, J., McCallum, B. and Menzies, J. 2015. AAC Foray red spring wheat. Can. J. Plant Sci. 95: 799–803. AAC Foray, an orange wheat blossom midge (Sitodiplosis mosellana Géhin) tolerant hard red spring wheat (Triticum aestivum L.), combined high grain yield and good agronomic performance with excellent resistance to leaf and stem rust, and improved resistance to Fusarium head blight. AAC Foray had maturity, straw strength, and test weight similar to the check cultivars. AAC Foray is eligible for grade of the Canada Prairie Spring Red wheat market class.


2016 ◽  
Vol 96 (5) ◽  
pp. 919-927
Author(s):  
R.D. Cuthbert ◽  
R.M. DePauw ◽  
R.E. Knox ◽  
A.K. Singh ◽  
T.N. McCaig ◽  
...  

AAC Elie hard red spring wheat (Triticum aestivum L.) has grain yield and time to maturity within the range of the checks. AAC Elie has an awned spike, a low lodging score indicative of strong straw, and a short plant stature typical of a semidwarf. These traits were comparable to the check Carberry. AAC Elie expressed resistance to prevalent races of leaf and stem rust, and intermediate resistance to fusarium head blight, yellow rust, common bunt, and loose smut. Compared with the five Canada Western Red Spring checks, AAC Elie has improved flour yield, and lower flower ash. AAC Elie is eligible for grades of Canada Western Red Spring.


2000 ◽  
Vol 80 (1) ◽  
pp. 123-127 ◽  
Author(s):  
R. M. DePauw ◽  
J. M. Clarke ◽  
R. E. Knox ◽  
M. R. Fernandez ◽  
T. N. McCaig ◽  
...  

AC Abbey, hard red spring wheat (Triticum aestivum L.), is adapted to the Canadian prairies. It is significantly shorter than any of the check cultivars and has solid stems. AC Abbey expressed higher grain yield, earlier maturity, and heavier kernels than AC Eatonia, the solidstem check cultivar. It is resistant to the wheat stem sawfly (Cephus cinctus Nort.) and to prevalent races of common bunt and has moderate resistance to leaf rust and stem rust. AC Abbey is eligible for grades of Canada Western Red Spring wheat. Key words: Triticum aestivum L., red spring wheat, yield, wheat stem sawfly, plant height, maturity


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