Planting Date and Nitrogen Effects on Grain Yield and Protein Content of Spring Wheat

Crop Science ◽  
2007 ◽  
Vol 47 (1) ◽  
pp. 36-44 ◽  
Author(s):  
K. D. Subedi ◽  
B. L. Ma ◽  
A. G. Xue
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Planting Date

Comparisons of sensors to predict spring Wheat grain yield and protein content

2021 ◽  
Author(s):  
Donald Veverka ◽  
Amitava Chatterjee ◽  
Melissa Carlson
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Wheat Grain

Impact of powdery mildew on the yield of soft white spring wheat cultivars

2003 ◽  
Vol 83 (4) ◽  
pp. 725-728 ◽  
Author(s):  
R. L. Conner ◽  
A. D. Kuzyk ◽  
H. Su
Keyword(s):  
Triticum Aestivum ◽  
Powdery Mildew ◽  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Blumeria Graminis ◽  
Resistant Cultivar ◽  
Resistant Cultivars ◽  
Soft White Spring Wheat ◽  
Moderately Resistant

The effect of powdery mildew (Blumeria graminis f. sp. tritici) on the grain yield and protein content of one susceptible, Springfield, and three moderately resistant cultivars, Fielder, AC Reed and AC Nanda, of soft white spring wheat (Triticum aestivum) was examined at two field locations near Lethbridge and Vauxhall, Alberta, in 1999 and 2000. At the start of heading, powdery mildew development was suppressed in half of the plots of each cultivar by a single spray application of the fungicide Tilt (propiconazole). Severe powdery mildew infection of the susceptible cultivar Springfield resulted in yield reductions ranging from 11.4 to 19.9%. The grain yield of the moderately resistant cultivar Fielder was significantly reduced at both sites in 1999 by 7.6–10.5% while AC Reed suffered a significant yield loss (7.6–9.1%) at Lethbridge in both years. The moderately resistant cultivar AC Nanda consistently had the lowest powdery mildew ratings and its yield was unaffected by the disease. A single fungicide application prevented disease buildup on the moderately resistant cultivars, but not on Springfield. The grain protein content of the moderately resistant cultivars was unaffected by powdery mildew, but it decreased in Springfield by 0.6–0.7%. Key words: Powdery mildew, Propiconazole, Blumeria graminis f. sp. tritici, wheat, Triticum aestivum, resistance

Genetic analysis of yield and its component traits in spring wheat

2003 ◽  
Vol 51 (2) ◽  
pp. 139-147 ◽  
Author(s):  
S. K. Joshi ◽  
S. N. Sharma ◽  
D. L. Singhania ◽  
R. S. Sain
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Triticum Aestivum L ◽  
High Protein ◽  
Components Of Variance ◽  
Gene Effects ◽  
Component Traits ◽  
Additive Gene ◽  
Average Average

Combining ability analysis in spring wheat (Triticum aestivum L. em. Thell) involving 10 diverse parents and their 45 F1 and F2 progenies indicated significant differences between the parents for GCA and between the crosses for SCA for all the characters studied. The GCA and SCA components of variance were significant for all the traits. However, the GCA component of variance was predominant, indicating the predominance of additive gene effects for the traits studied. Among the parents HD 2329, Raj 1972, HD 2285 and HD 2428 were the best general combiners for grain yield and average to high combiners for other important traits. The best specific crosses for grain yield were CPAN 3004 × Durgapura 65, Sonalika × HD 2329, Raj 3077 × CPAN 3004, Raj 3077 × HD 2428 and HD 2428 × WH 157.The parent Raj 1972 was the best general combiner for grain yield and protein content, while Raj 3077 and Lok-1 were the best general combiners for protein content. The most suitable specific crosses for protein content were HD 2329 x HD 2285, HD 2428 × Raj 1972 and CPAN 3004 × WH 157. Most of the specific crosses for grain yield and protein content involved high × average, average × average or average × poor general combiners. To ensure a further increase in grain yield along with high protein, combinations of desirable yield components are advocated. The exploitation of additive and non-additive gene actions through bi-parental mating and/or diallel selective mating systems are suggested for a tangible advance in grain yield coupled with high protein in spring wheat.

scholarly journals Response of Grain Yield and Protein Content of Wheat Varieties to Different Levels of Fertilizers

2013 ◽  
Vol 70 (1) ◽  
pp. 235-242
Author(s):  
Ionuț RACZ ◽  
Marcel DUDA ◽  
Rozalia KADAR ◽  
Vasile MOLDOVAN ◽  
Adrian CECLAN
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Agricultural Research ◽  
Basic Scheme ◽  
Wheat Varieties ◽  
Local Conditions ◽  
Lattice Design ◽  
Different Levels

The grain yield and protein content of winter and spring wheat are significantly influenced by the technological factors, by variety, meteorological conditions and interaction between them. The field experiment was conducted to evaluate the effect of different levels of fertilization on grain yield and quality indices in winter and spring wheat and to compare of their values. The quality of the grain was determined based on meal analysis. Nitrogen application improved protein content and also increase the grain yield until level when is appear the negative correlation between two characters. The experimental date from this paper is about adaptability of 25 winter wheat and 22 spring wheat varieties local and foreign in two years and two level of fertilization on the local conditions at Turda. The experiments were conducted over two years, 2011 and 2012, at Agricultural Research and Development Station Turda, which are characterized with a high rainfall and temperatures favourable for winter wheat and spring wheat crops. The trials were conducted under quadratic lattice design with repeated the basic scheme. Each of both basic scheme consisting of 3 replications permitted to create two levels of fertilization. So, including the years as factors was possible to consider our experiment as an three factorial one (years- cultivars- fertilization). The effect of fertilization is reflected on increase grain yield and qualitative of these. By analysis of variance could be highlighted the influences of year, level of fertilization and cultivars, and also the interactions between these.

scholarly journals Influence of irrigation and nitrogen fertilization on grain yield and some baking quality characteristics of spring wheat

1975 ◽  
Vol 47 (3) ◽  
pp. 166-180
Author(s):  
Paavo Elonen ◽  
Sirkka-Liisa Rinne ◽  
Hilkka Suomela
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Nitrogen Fertilization ◽  
Quality Characteristics ◽  
Falling Number ◽  
Grain Yields ◽  
Baking Quality ◽  
Additional Nitrogen

In the years 1967—70 twelve irrigation experiments of spring wheat were carried out in southern Finland (60-62° N, 22-26° E). Sprinkler irrigation (2 X 30 mm) increased the grain yields on an average by 1240±470kg/ha (from 2740 to 3980 kg) or 45±17 %. The increases in yield were significant on clay soils (9 trials) and loam (1 trial) but insignificant on fines and (1 trial) and mould (1 trial). Additional nitrogen fertilization (from 76 to 143kg/ha N) increased the grain yields on an average by 350± 200 kg/ha or 11±6 %. The ripening of wheat was significantly promoted by irrigation in one year but slightly retarded in three years. Nitrogen fertilization slightly retarded ripening every year The falling number of grains tended to be slightly improved by irrigation (from 285 to 321, on an average), but in most trials irrigation and nitrogen fertilization had no significant influence on the falling number. Irrigation decreased the crude protein content of grains in all trials, on an average by 2.2 ± 0.7 %-units (from 16.3 to 14.1%). This unfavourable effect was, however, avoided with additional nitrogen which increased the protein content by 1.9±0.4%-units (from 14,3 to 16.2 %). The effects of irrigation and nitrogen fertilization on those characteristics of wheat that are correlated with protein, were similar to the effects on the protein content. Thus, irrigation decreased the zeleny value (from 64 to 53 ml), cold viscosity (from 214 to 114 seconds), water absorption (from 66.5 to 64.9 %) and the valorimeter value (from 68 to 60), while these characteristics were improved by nitrogen fertilization. Irrigation did not decrease the Pelshenke value but increased significantly the ratio of the Pelshenke value/protein content (from 5,1 to 6.1). This indicates that the quality of protein was improved by irrigation, while the effect of nitrogen fertilization was the reverse. In fact, irrigation and additional nitrogen fertilization affected the quantity and quality of protein and the baking quality characteristics of wheat in opposite directions but the quantity of grain yield in the same direction. With these two methods combined it was possible to produce 60 % higher grain yields without any noteworthy changes in the baking quality characteristics of spring wheat.

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

Effects of planting date on the development and yield of spring wheat: Simulation of field data

1996 ◽  
Vol 76 (1) ◽  
pp. 51-58 ◽  
Author(s):  
L. A. Hunt ◽  
S. Pararajasingham ◽  
J. V. Wiersma
Keyword(s):  
Grain Yield ◽  
Spring Wheat ◽  
Field Data ◽  
Simulation Models ◽  
Triticum Aestivum L ◽  
Planting Date ◽  
Maximum Temperature ◽  
Grain Number ◽  
Planting Dates ◽  
Key Words Wheat

Much of the work on planting-date effects has been carried out with old cultivars and over a relatively few years. This study was conducted to use data from a recent study to determine whether a simulation model (Cropsim-wheat) could be used to examine the response of modern cultivars to planting date over an extended run of years. Field data for four spring wheat (Triticum aestivum L.) cultivars seeded at 12 planting dates, ranging from 29 April to 12 June, at 4-d intervals at Crookston, Minnesota, in 1992 were used. For all genotypes, crop duration was shortened as planting was delayed from 29 April to 23 May. Further delay in planting lengthened this duration. Simulation outputs for developmental aspects closely matched the field data. The early plantings yielded less than those established somewhat later, with the highest grain yields resulting from mid-May plantings. Cultivar Marshall planted on 7 May produced the highest yield (5.5 t ha−1) of any cultivar. Late plantings decreased grain yield. Grain number appeared to be the major component affecting grain yield. Simulation outputs from the basic model, which computed grain number as a function of biomass shortly after anthesis, did not match well the field data for early and late plantings. The inclusion of functions that related grain number to solar radiation and maximum temperature around anthesis and to biomass improved the predictions for plantings early and later in the season. The inclusion of these functions in wheat simulation models may be necessary for application to situations that result in differences in environmental conditions around anthesis. Key words: Wheat, planting date, simulation, yield, grain number

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