EFFECTS OF HIGH RATES OF NITROGEN ON NEEPAWA WHEAT GROWN UNDER IRRIGATION. I. YIELD AND PROTEIN CONTENT

1977 ◽  
Vol 57 (2) ◽  
pp. 331-336 ◽  
Author(s):  
S. DUBETZ
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Field Experiments ◽  
Irrigation Management ◽  
Soil Nutrient ◽  
Moisture Stress ◽  
Triticum Aestivum L ◽  
Available N ◽  
Hard Red Spring Wheat ◽  
Varied Response

A hard red spring wheat (Triticum aestivum L. cv. Neepawa) was grown at five sites in southern Alberta during a 3-yr period in irrigated field experiments in which rates of N and P, and N source were varied. Response of yield and protein content varied between sites and treatments, mainly because of differences in soil nutrient levels, soil texture, and irrigation management. The highest yield, 53.3 q/ha, was obtained on a clay soil that contained relatively high levels of available N and P. Grain yield and protein content responded mostly to N. Yields were maximized with about 100 kg N/ha on soils where fertility was relatively low. The highest protein content (dry basis) was 20.7%. When soil N was relatively low, it was possible to increase the protein content 51–76% by applying high rates of N, either to the soil or as a urea spray at flowering, and by subjecting the plants to a soil moisture stress during the flowering stage. N applied as a urea spray did not affect grain yield.

scholarly journals Biometric Analyses of Yield, Oil and Protein Contents of Wheat (Triticum aestivum L.) Genotypes in Different Environments

Agronomy ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 270 ◽  
Author(s):  
Ankica Kondić-Špika ◽  
Novica Mladenov ◽  
Nada Grahovac ◽  
Miroslav Zorić ◽  
Sanja Mikić ◽  
...  
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Oil Content ◽  
Significant Positive Correlation ◽  
Field Experiments ◽  
Triticum Aestivum L ◽  
Climatic Conditions ◽  
Partial Least Square ◽  
Least Square ◽  
Partial Least Square Regression

The objectives of this study were to investigate: (1) the effects of genotype, environment, and their interactions on the oil content (OC), protein content (PC) and grain yield (GY) of 25 varieties of winter wheat, (2) the correlations among these traits in different environments, and (3) the effects of different climatic variables and their interactions with wheat genotypes for the examined traits. The field experiments were performed on three experimental sites in Serbia in 2009/10 and 2010/11. The most variable traits were GY and PC, while the variations of OC were lower. A significant positive correlation between wheat bran OC and GY was found in one, while highly significant negative correlations between PC and GY were found in three out of six environments. The partial least square regression (PLSR) triplots for protein content, oil content and grain yield enabled us to identify favorable and limiting climatic conditions for each trait and explained 31.9%, 32.6%, and 30.4% of the total variance, respectively. Cvs. Renesansa and Zvezdana were identified as genotypes with high average values for all traits, while cvs. Bankuty 1205 and Banatka were identified as potential sources of high protein content.

scholarly journals ASSESSMENT OF AGRISPON, A MICROBIAL SOIL SUPPLEMENT, ON CEREAL PRODUCTION

1984 ◽  
Vol 64 (3) ◽  
pp. 607-615 ◽  
Author(s):  
D. W. McANDREW ◽  
D. J. E. DEMARS ◽  
V. O. BIEDERBECK ◽  
C. A. CAMPBELL
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Field Studies ◽  
Triticum Aestivum L ◽  
Growth Chamber ◽  
Microbial Composition ◽  
Available Nitrogen ◽  
Hard Red Spring Wheat ◽  
Wheat Field

Agrispon has been promoted in Western Canada as a soil supplement that provides plant-available nitrogen via undefined catalytic as well as microbial processes. Testing was undertaken in a controlled environment and under field conditions, to substantiate claims made by manufacturers and promoters that this product enhances germination and availability of nitrogen to plants. Characterization of the microbial composition of this product was also undertaken. Germination of Neepawa hard red spring wheat (Triticum aestivum L.) was not influenced in a greenhouse study. Growth chamber studies did not show any beneficial effect of Agrispon on total dry matter, grain yield or protein content of Neepawa wheat. Field studies with Canuck hard red spring wheat gave similar results to those obtained in the growth chamber i. e., no benefit in grain yield or protein content of Agrispon-treated plants. Analysis of soil samples taken at the end of the experiment also revealed no treatment effect of Agrispon or N fertilizer on available NO−3-N or NH4+-N levels. Microbiological determinations revealed relatively low populations of common soil organisms.Key words: Agrispon, Nitro/Max, soil supplement, bacterial population, fertilizer

scholarly journals Assessment of foliar-applied phosphorus fertiliser formulations to enhance phosphorus nutrition and grain production in wheat

2020 ◽  
Vol 71 (9) ◽  
pp. 795 ◽  
Author(s):  
Therese M. McBeath ◽  
Evelina Facelli ◽  
Courtney A. E. Peirce ◽  
Viran Kathri Arachchige ◽  
Michael J. McLaughlin
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Triticum Aestivum L ◽  
P Uptake ◽  
Isotopic Dilution ◽  
Yield Response ◽  
Phosphorus Fertiliser ◽  
P Application ◽  
P Recovery ◽  
Fertiliser Application

The ability to utilise foliar-applied phosphorus (P) as a strategy to increase the P status and yield of grain crops grown in dryland regions with variable climates is attractive. Several P formulations with varying pH, accompanying cations and adjuvants were tested for their effectiveness as foliar fertilisers for wheat (Triticum aestivum L.) plants, first under controlled and then under field conditions. Experiments under controlled conditions suggested that several formulations with specific chemistries offered promise with respect to wheat fertiliser-P recovery and biomass responses. These formulations were then evaluated in two field experiments, and although wheat grown at the sites showed substantive responses to soil-applied P, there was no significant grain-yield response to foliar-applied P. Following the limited responses to foliar-applied fertiliser in the field, we used an isotopic dilution technique to test the hypothesis that the variation in responses of wheat to foliar addition of P could be explained by a mechanism of substitution, whereby root P uptake is downregulated when P is taken up through the leaves, but this was proven not to be the case. We conclude that foliar P application cannot be used as a tactical fertiliser application to boost grain yield of wheat in dryland regions.

Alvena hard red spring wheat

2008 ◽  
Vol 88 (3) ◽  
pp. 513-518 ◽  
Author(s):  
R. E. Knox ◽  
R. M. DePauw ◽  
F. R. Clarke ◽  
F. R. Clarke ◽  
T. N. McCaig ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Spring Wheat ◽  
Protein Concentration ◽  
Triticum Aestivum L ◽  
Head Blight ◽  
Hard Red Spring Wheat ◽  
The Mean ◽  
End Use ◽  
Moderate Resistance

Based on 38 replicated trials over 3 yr, Alvena, hard red spring wheat (Triticum aestivum L.) expressed significantly higher mean grain yield than the checks. It was significantly earlier maturing than AC Barrie and significantly more resistant to lodging than Katepwa. Wheat protein concentration of Alvena was similar to the mean of the checks and flour protein concentration was significantly higher than the check mean. Amylograph viscosity was significantly lower than the mean of the checks. Alvena meets the end-use quality and Canadian Grain Commission’s kernel visual distinguishability specifications of the Canada Western Red Spring wheat market class. Alvena expressed moderate resistance to prevalent races of loose smut and stem rust, intermediate resistance to prevalent races of leaf rust and common bunt, and moderate susceptibility to fusarium head blight. Key words: Triticum aestivum L., cultivar description, grain yield, maturity, disease resistance

Lillian hard red spring wheat

2005 ◽  
Vol 85 (2) ◽  
pp. 397-401 ◽  
Author(s):  
R. M. DePauw ◽  
T. F. Townley-Smith ◽  
G. Humphreys ◽  
R. E. Knox ◽  
F. R. Clarke ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Spring Wheat ◽  
Protein Concentration ◽  
Triticum Aestivum L ◽  
Canadian Prairies ◽  
Wheat Stem Sawfly ◽  
Hard Red Spring Wheat ◽  
Protein Resistance ◽  
Cultivar Description

Lillian, hard red spring wheat (Triticum aestivum L.), exhibited reduced cutting by the wheat stem sawfly (Cephus cinctus Nort.) and is adapted to the Canadian prairies. Lillian produced significantly more grain yield than AC Abbey and Neepawa and its grain yield and protein concentration were similar to AC Barrie. It matured significantly earlier than Superb and Laura, and had improved resistance to leaf rust and leaf spotting diseases compared to AC Abbey. Lillian is eligible for all grades of the Canada Western Red Spring (CWRS) wheat class. Key words: Triticum aestivum L., cultivar description, grain yield and protein, resistance wheat stem sawfly, leaf and stem rust

Stettler hard red spring wheat

2009 ◽  
Vol 89 (5) ◽  
pp. 945-951 ◽  
Author(s):  
R M DePauw ◽  
R E Knox ◽  
F R Clarke ◽  
J M Clarke ◽  
T N McCaig
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Spring Wheat ◽  
Doubled Haploid ◽  
Triticum Aestivum L ◽  
Kernel Weight ◽  
Hard Red Spring Wheat ◽  
Volume Weight ◽  
Grain Volume Weight ◽  
End Use

Based on 34 replicated trials over 3 yr, Stettler, a doubled haploid hard red spring wheat (Triticum aestivum L.), expressed significantly higher grain yield than all checks except Superb. Wheat and flour protein concentration were significantly greater than all of the checks except Lillian. It matured significantly later than AC Barrie and Katepwa but earlier than Superb. Stettler was significantly shorter than all of the checks except Superb and was more resistant to lodging than Katepwa and Laura. Stettler had high grain volume weight and intermediate kernel weight relative to the checks, and meets the end-use quality specifications of the Canada Western Red Spring wheat market class. Stettler expressed resistance to prevalent races of stem rust, common bunt and loose smut, with moderate susceptibility to prevalent races of leaf rust and fusarium head blight.Key words: Triticum aestivum L., cultivar description, grain yield, protein, disease resistance, doubled haploid

scholarly journals Variability and interconnection of economically useful indicators of soybeans under the influence of herbicides

2020 ◽  
pp. 19-22
Author(s):  
Yuriy Viktorovich Lobachev ◽  
Valeriy Tikonovich Krasilnikov
Keyword(s):  
Correlation Analysis ◽  
Grain Yield ◽  
Protein Content ◽  
Field Experiments ◽  
Specific Effect ◽  
Correlation Dependence ◽  
Saratov Region ◽  
Grain Productivity ◽  
Control Variant ◽  
The Right

Under the conditions of the Right Bank of the Saratov Region, the effect of four herbicides, two new tank mixtures and two new compositions of herbicides on the value and variability of the following indicators of soybeans: “grain yield”, “number of beans from a plant”, “the number of grains per plant", "the mass of 1000 grains", "the protein content in the grain” was studied in three field experiments using two-way   variance and correlation analysis. The relationships between grain yield and elements of its structure, grain yield and protein content in grain are studied. All studied variants after application of herbicides significantly exceeded the control variant in grain yield. Options with the use of a new tank mixture of frontier optima + gezagard herbicides, frontier optima + galaxy top herbicidal compositions, hezagard + galaxy top herbicide compositions significantly exceeded the grain yield after application of  herbicides. This led to a decrease in the variability of the studied indicators and changed the nature of the correlation dependence of grain productivity with other economically useful indicators of soybeans. The specific effect of the application of individual herbicides, their tank mixtures and compositions on the variability and interconnection of economically useful indicators of soybeans has been established.

scholarly journals AAC Castle red spring wheat

2021 ◽  
pp. 1-7
Author(s):  
H.S. Randhawa ◽  
P.D. Brown ◽  
J. Mitchell Fetch ◽  
T. Fetch ◽  
B. McCallum ◽  
...  
Keyword(s):  
Grain Yield ◽  
Spring Wheat ◽  
Protein Concentration ◽  
Triticum Aestivum L ◽  
Loose Smut ◽  
Lodging Resistance ◽  
Hard Red Spring Wheat ◽  
Wheat Market ◽  
Weight Protein ◽  
Flour Yield

AAC Castle, an awned hard red spring wheat (Triticum aestivum L.), cultivar, combines high grain yield and good agronomic characteristics with excellent resistance to leaf, stem, stripe rust, common bunt and loose smut. It also expressed tolerance to the orange wheat blossom midge. Based on 39 station years of data in the registration trials from 2014 to 2016, the grain yield of AAC Castle was about 17% higher than 5700PR but similar to the other checks. AAC Castle was significantly shorter than AAC Foray and CDC Terrain, but had similar lodging resistance and maturity. AAC Castle had higher test weight, protein concentration, falling number and flour yield than AAC Foray and CDC Terrain. AAC Castle is eligible for grade of the Canada Prairie Spring Red wheat market class.

scholarly journals Influence of long-term fertilization on yield and quality of spring triticale grain

2021 ◽  
Author(s):  
Hryhorii Hospodarenko ◽  
◽  
Vitalii Liubych ◽  
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Mineral Fertilizer ◽  
Weather Conditions ◽  
Triticum Aestivum L ◽  
Spring Triticale ◽  
National University ◽  
Fertilizer System

Triticale (×Triticosecale Wittmack) is a promising cereal crop that has a number of economically valuable properties that are absent in wheat (Triticum aestivum L.). The research was conducted at Uman National University of Horticulture (Ukraine) in a long-term stationary experiment, founded in 1964. The aim of the work was to study the influence of long-term application of different fertilizer systems (mineral, organic and organo-mineral) on the yield and grain quality of spring triticale. It has been established that in the conditions of high air temperature and soil moisture deficit, mineral and organo-mineral fertilizer systems have an advantage. In sufficient wet conditions, all studied fertilizer systems are highly efficient. Spring triticale (Kharkiv Hlibodar variety) has a high reaction to fertilizers, as grain yield increases from 6.3–6.6 to 9.0–9.5 t ha-1 (р≤0.05). Mineral and organo-mineral fertilizer systems have the greatest effect on protein content. In conditions of sufficient moisture, all levels of mineral and organo-mineral fertilizer systems significantly increase the protein content in spring triticale grain. In arid conditions, saturation of crop rotation area with N90P90K90 (M2), N135P135K135 (M3) and Manure 9 t +N46P68K36 (OM2), Manure 13.5 t + N69P102K54 (OM3) is preferred. It should be noted that spring triticale is quite reactive with fertilizers, as the protein content increases from 13.2–14.0 to 15.2–16.0% (р≤0.05) depending on the fertilizer system. The high influence of fertilizer system and year factors on yield and protein content in triticale grain has been established. It should be noted that spring triticale grain yield varies most from the weather conditions of the growing season.

Extending the duration of the ear construction phase to increase grain yield of bread wheat

2019 ◽  
Vol 70 (5) ◽  
pp. 428 ◽  
Author(s):  
Tina Botwright Acuña ◽  
Richard Richards ◽  
Debra Partington ◽  
Angela Merry ◽  
Brendan Christy ◽  
...  
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Genetic Material ◽  
Triticum Aestivum L ◽  
Yield Component ◽  
Specific Yield ◽  
Phase Duration ◽  
Vegetative Period ◽  
Stage Of Development ◽  
Diverse Field

We tested the hypothesis that lengthening the duration between the terminal spikelet stage of development and anthesis (referred to here as the construction-phase duration, CPD) will increase yield per unit area in wheat (Triticum aestivum L.). Field experiments were undertaken at 17 sites across the high-rainfall zone of south-eastern and Western Australia in 2014 and 2015. In total, 205 wheat genotypes were grown. Genetic material included a set of near-isogenic lines (NILs) varying in photoperiod and vernalisation alleles; commercial wheat cultivars and breeding lines; and lines selected from the Multiparent Advanced Generation Inter Cross population. As such, this is the only comprehensive dataset in which the effect of variation in CPD on grain yield in field plots has been evaluated in diverse field environments. Within an optimum anthesis window of 10 days, longer CPD significantly increased grain yield by >11% at two sites and tended to increase grain yield at another 11 sites (not statistically significant). The average yield increase across these sites was 5.5%. There was no consistent trend whereby a specific yield component was responsible for the increase across sites. We suggest that CPD can be extended by genetic selection and by sacrificing some of the vegetative period without any detriment to grain yield. We also found that CPD is increased by extending the duration from sowing to flowering through earlier sowing, which may be associated with increased yields in some environments. We conclude that, for the same anthesis date, a longer CPD may be beneficial in moderately favourable rainfed environments with a relatively even distribution of rainfall. We explore the basis of these relationships and implications for growers and plant breeders.

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