|
|
|
| Registros recuperados: 11 | |
|
|
| Adamski,Tadeusz; Krystkowiak,Karolina; Kuczynska,Anetta; Mikolajczak,Krzysztof; Ogrodowicz,Piotr; Ponitka,Aleksandra; Surma,Maria; Slusarkiewicz-Jarzina,Aurelia. |
| Background The quality of wheat grain depends on several characteristics, among which the composition of high molecular weight glutenin subunits, encoded by Glu-1 loci, are the most important. Application of biotechnological tools to accelerate the attainment of homozygous lines may influence the proportion of segregated genotypes. The objective was to determine, whether the selection pressure generated by the methods based on in vitro cultures, may cause a loss of genotypes with desirable Glu-1 alleles. Results Homozygous lines were derived from six winter wheat crosses by pollination with maize (DH-MP), anther culture (DH-AC) and single seed descent (SSD) technique. Androgenetically-derived plants that originated from the same callus were examined before... |
| Tipo: Journal article |
Palavras-chave: Androgenesis; DH lines; HMW glutenin subunits; SSD technique; Winter wheat. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000100002 |
| |
|
|
| 梅津, 一孝; 山縣, 真人; 岸本, 正; 谷, 昌幸; 林, 峰之; 三崎, 卓也. |
| The purpose of this study was to evaluate the effect of anerobically co-digested dairy manure and food processing wastes as an organic fertilizer, and to investigate the changes in soil nitrogen and grain yield of winter wheat (Hokushin) comparing digested dairy manure with chemical fertilizer. By the incubation test, it was clear that the NH4-N was almost converted into the NO3-N for four weeks. Over the period of 101 days, 15% of inorganic N was accumulated in the soil. Between grain yields where co-digested dairy manure and chemical fertilizer were applied, there were no significant difference, but protein contents in grain were higher in co-digested manure applied than chemical fertilizer one (p<0.05). |
|
Palavras-chave: バイオガス; メタン; 消化液; 圃場還元; 秋蒔き小麦; Biogas; Methane; Digested slurry; Field application; Winter wheat. |
| Ano: 2003 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4513 |
| |
|
|
| Roberts, Roland K.; Walters, Jeremy T.; Larson, James A.; English, Burton C.; Howard, Donald D.. |
| Interactions among the nitrogen (N) fertilization rate, N source, and disease severity can affect mean yield and yield in conservation tillage wheat production. A Just-Pope model was used to evaluate the effects of N rate, N source, and disease on the spring N fertilization decision. Ammonium nitrate (AN) was the utility-maximizing N source, regardless of risk preferences. The net-return-maximizing AN rate was 92 lb N/acre, providing $0.52/acre higher net returns than the best alternative N source (urea). If a farmer could anticipate a higher-than-average Take-All Root Rot infection, the difference in optimal net returns between AN and urea would increase to $35.11/acre. |
| Tipo: Journal Article |
Palavras-chave: Certainty equivalent; Blume-Blotch; Nitrogen fertilizer; Nitrogen source; Risk; Take-All; Winter wheat; D21; D81; Q12. |
| Ano: 2004 |
URL: http://purl.umn.edu/43444 |
| |
|
| |
|
|
| Qasmi, Bashir A.; Hamda, Yonas; Fausti, Scott W.. |
| This study reports the results of a survey of grain elevators in South Dakota completed in 2007 and focuses on the marketing patterns for spring wheat, winter wheat, oats, barley, corn, soybeans and sunflower seeds for the marketing year 2005/06. During the year, elevators’ market share in South Dakota was 54%, 83%, 91% and 83% for corn, soybeans, spring wheat, and winter wheat, respectively. Contrary to reports for Iowa and Indiana, the increase in ethanol production in the state did not have an adverse impact on elevators’ market share for corn in South Dakota. In terms of volume, cash purchase, delayed pricing, cash forward contracts, and hedge to arrive contracts, collectively, accounted for more than 95% of each of the grain and oilseed purchased by... |
| Tipo: Report |
Palavras-chave: South Dakota; Corn; Soybeans; Spring wheat; Winter wheat; Grain elevators; Market share; Methods of purchase; Methods of sale; Transportation modes; Agribusiness; Q1. |
| Ano: 2010 |
URL: http://purl.umn.edu/60463 |
| |
|
| |
|
| |
|
|
| Watkins, K. Bradley; Hignight, Jeffrey A.; Beck, Paul A.; Anders, Merle M.; Hubbell, Donald S., III; Gadberry, Shane. |
| This study evaluates both the profitability and risk efficiency of grazing stocker steers on conservation tillage winter wheat pasture using simulation and stochastic efficiency with respect to a function (SERF). Average daily gains are simulated for steers grazed on conventional tillage (CT), reduced tillage (RT) and no-till (NT) winter wheat pasture. Steer price distributions and prices for key production inputs such as diesel, fertilizer, and glyphosate are also simulated. Stocker steer net return distributions by tillage treatment are constructed and ranked for risk efficiency using SERF. The results indicate the NT system is the most profitable and most risk efficient of the three tillage systems, followed by the RT system. Both conservation tillage... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: No-till; Profitability; Reduced tillage; Risk; SERF; Stocker grazing; Winter wheat; Farm Management; Production Economics. |
| Ano: 2010 |
URL: http://purl.umn.edu/56356 |
| |
|
| |
|
|
| Antle, John M.; Capalbo, Susan Marie; Heggem, Christine N.; Clark, Richard T.; Norton, Nancy A.; Selley, Roger A.. |
| The information presented in this report represents data collected from farming and ranching operations in the southern two tiers of counties in Nebraska. This study was based on a random sample of 151 southern Nebraska farms that have annually-planted crop acreage. Information was obtained for the 1997 crop year. This data set is referred to as the MSU/UNL survey data. From the MSU/UNL survey data, the average size of the farming operations in the survey, in 1997, was 1,316 acres. Of these, 856 acres were planted to annual crops, and the remaining 460 acres included 61 acres in fallow, 29 acres in hay, 287 acres in range and pasture, 28 acres in CRP, and 55 acres in other uses. Operation size was largest in the west, due mostly to a large number of range... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Field-scale production data; Southern Nebraska farm survey; Average farm size; Irrigated and dryland grain corn; Soybeans; Sorghum; Winter wheat; Livestock operations; Production Economics; Q1. |
| Ano: 2000 |
URL: http://purl.umn.edu/29243 |
| |
|
|
| Studnicki,Marcin; Mądry,Wiesław; Derejko,Adriana; Noras,Kinga; Wójcik-Gront,Elżbieta. |
| Cultivars have to be evaluated under different crop management systems across agro-ecosystems and years using multi-environment trials (MET) before releasing them to the market. Frequently, data collected in METs are arranged according to cultivar (G), management (M), location, (L) and year (Y) combinations in a four-way G x M x L x Y data table that is highly unbalanced for cultivars across locations and time. Therefore, we present the restricted maximum likelihood method (REML) for linear mixed models (LMM) with a factor analytic variance-covariance matrix for assessing cultivar adaptation to crop management systems and environments based on unbalanced datasets. Such a multi-environmental trial system has been in operation in Poland for winter wheat... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crop management; Restricted maximum likelihood methods; Unbalanced data; Winter wheat. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000500411 |
| |
| Registros recuperados: 11 | |
|
|
|
