Response of certain malting barley varieties to nitrogen fertilization

1972 ◽  
Vol 44 (1) ◽  
pp. 12-18
Author(s):  
E. I. Kivi ◽  
S. Hovinen
Keyword(s):  
Protein Content ◽  
Nitrogen Fertilization ◽  
Field Trials ◽  
Nitrogen Supply ◽  
Malting Barley ◽  
Nitrogen Levels ◽  
Cultivation Technique ◽  
The Difference

The Barley Committee of the Laboratory of Brewing in Helsinki, carried out a series of field trials from 1967 to 1969 to investigate the effect of the timing and the quantity of nitrogen fertilization on properties of malting barleys grown in Finland. This paper deals with a part of this project. The varieties were the two-rowed brewing barleys Ingrid, Arvo and Karri and the six-rowed enzyme barley Pirkka. As a basic fertilizing 59 kg phosphorus and 99 kg potassium per hectare were administered. Varying nitrogen levels (30 or 60 kg N per hectare) were given as saltpetre at harrowing (early) or on the sprouts (late). The nitrogen given early increased the yield in all varieties more than the late spreading. The treatment on sprouts increased the protein content of the yield. The difference in protein contents between the two spreading times was as big as the difference between the two nitrogen doses given at the same point of time. Ingrid and Pirkka reacted very sensitively to the late nitrogen fertilizing. Karri was least sensitive to the changes in nitrogen supply. The yearly fluctuations of the protein contents were bigger than the differences between varieties in each year. The order of varieties in regard to the protein content was the same in all trial years: Pirkka, Ingrid, Arvo and Karri. Besides the cultivation technique, e.g. placement of fertilizers, attention must be paid to the sensitivity of the varieties in increasing their protein content under changeable conditions.

scholarly journals Genotypic response of two soybean varieties with reduced content of KTI to application of different nitrogen level

2010 ◽  
Vol 26 (5-6) ◽  
pp. 403-410 ◽  
Author(s):  
Violeta Randjelovic ◽  
S. Prodanovic ◽  
Z. Tomic ◽  
Z. Bijelic
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Nitrogen Fertilization ◽  
Oil Content ◽  
Nutritive Value ◽  
Field Trials ◽  
Dry Land ◽  
Group I ◽  
Soybean Genotypes ◽  
Land Farming

The aim of this investigation was to estimate the effects of different amounts of nitrogen on the grain yield and nutritive value in two soybean genotypes (Laura and Lana). Studied varieties belong to different maturity groups (Laura is in the group I, while Lana is in the group II) and they both have reduced content of Kunitz trypsin inhibitor (KTI). Four treatments of fertilization were tested: 0 kg N ha-1, 30 kg N ha-1, 60 kg N ha-1 and 90 kg N ha-1. Field trials were carried out in dry land farming, at location Putinci, during the years 2008 and 2009. In both research years, variety Lana had higher grain yield and oil content then variety Laura. Method of nitrogen fertilization has been proved as an effective tool for increasing of grain yield and protein content in both varieties. The results of the study showed that application of 90 kg N ha-1 increased the grain yield and protein content of soybean more than application of other treatments (0, 30 and 60 kg N ha- 1). All nitrogen fertilization levels decreased the oil content.

scholarly journals Common bean elite lines cultivated under nitrogen fertilization and inoculation with Rhizobium tropici

2015 ◽  
Vol 45 (12) ◽  
pp. 2168-2173
Author(s):  
Helton Santos Pereira ◽  
Leonardo Cunha Melo ◽  
Luís Cláudio de Faria ◽  
Enderson Petrônio de Brito Ferreira ◽  
Fábio Martins Mercante ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Common Bean ◽  
Nitrogen Fertilization ◽  
Field Trials ◽  
Nitrogen Supply ◽  
Mineral Nitrogen ◽  
The Other ◽  
Rhizobium Tropici ◽  
Rhizobium Inoculation ◽  
Biological Nitrogen

ABSTRACT: More efficient strains of Rhizobium have been selected for use in common bean. However, little effort was made with lines selection. The main goals of this research were to verify the presence of interaction involving common bean elite lines utilizing Nitrogen fertilization and Rhizobium inoculation for grain yield and to identify lines with superior yields utilizing biological nitrogen fixation. Eight field trials were conducted at four location-years in Brazilian savanna, using randomized complete blocks design with three replications. Each trial was composed of 17 carioca elite lines. Every two tests in each location were planted side by side, one with mineral nitrogen fertilization (90kg) and the other one with inoculation with Rhizobium tropici SEMIA 4080 strain. Elite lines interaction with nitrogen fertilization/inoculation was not important, so, it is possible to select lines for utilization in both growing systems. In some locations-years, interaction between lines and Rhizobium inoculation was most affected by environment conditions, causing modification in lines classification according to the type of nitrogen supplying used. In general, the lines presented higher yields when fertilized with mineral nitrogen as compared with inoculation. The cultivar 'BRS Pontal' presented high and similar yields under both systems of nitrogen supply.

scholarly journals GRAIN QUALITY OF MUTANT LINES INDUCED IN MALTING BARLEY VARIETIES

2020 ◽  
Vol 18 (Suppl.1) ◽  
pp. 47-54
Author(s):  
B. Dyulgerova ◽  
N. Dyulgerov
Keyword(s):  
Protein Content ◽  
Grain Quality ◽  
Starch Content ◽  
Field Trials ◽  
Grain Weight ◽  
Malting Barley ◽  
Extract Content ◽  
Mutant Lines ◽  
1000 Grain Weight

Forty-three mutant lines selected on the base of their high grain yield along with parent varieties Kuber, Zagorets, Asparuh, and Imeon were grown in field trials at the Institute of Agriculture – Karnobat in three consecutive years. Eight physical and chemical characteristics of grain related to the grain quality of malting barley were measured. There was considerable variation among barley mutant lines for all studied traits. Mutant lines with higher extract content, grain uniformity, 1000 grain weight, and lower protein content in grain compared to parent varieties were found. The correlations among traits showed that improvement of extract content of mutant lines was associated with increased grain uniformity, starch content, grain size, and 1000 grain weight and reduced protein content. The results from cluster analysis indicated that mutants originated from the same parent were grouped into different clusters. Therefore, the sodium azide treatment effectively induced diverse types of changes in the grain characteristics.

scholarly journals Do lower nitrogen fertilization levels require breeding of different types of cultivars in triticale?

2021 ◽  
Author(s):  
Jan E. Neuweiler ◽  
Johannes Trini ◽  
Hans Peter Maurer ◽  
Tobias Würschum
Keyword(s):  
Nitrogen Fertilization ◽  
Genetic Architecture ◽  
Starch Content ◽  
Temporal Trends ◽  
Field Trials ◽  
Available Nitrogen ◽  
Nitrogen Levels ◽  
Target Environment ◽  
High Level ◽  
Fertilization Level

Abstract Key message The comparably low genotype-by-nitrogen level interaction suggests that selection in early generations can be done under high-input conditions followed by selection under different nitrogen levels to identify genotypes ideally suited for the target environment. Abstract Breeding high-yielding, nitrogen-efficient crops is of utmost importance to achieve greater agricultural sustainability. The aim of this study was to evaluate nitrogen use efficiency (NUE) of triticale, investigate long-term genetic trends and the genetic architecture, and develop strategies for NUE improvement by breeding. For this, we evaluated 450 different triticale genotypes under four nitrogen fertilization levels in multi-environment field trials for grain yield, protein content, starch content and derived indices. Analysis of temporal trends revealed that modern cultivars are better in exploiting the available nitrogen. Genome-wide association mapping revealed a complex genetic architecture with many small-effect QTL and a high level of pleiotropy for NUE-related traits, in line with phenotypic correlations. Furthermore, the effect of some QTL was dependent on the nitrogen fertilization level. High correlations of each trait between N levels and the rather low genotype-by-N-level interaction variance showed that generally the same genotypes perform well over different N levels. Nevertheless, the best performing genotype was always a different one. Thus, selection in early generations can be done under high nitrogen fertilizer conditions as these provide a stronger differentiation, but the final selection in later generations should be conducted with a nitrogen fertilization as in the target environment.

scholarly journals CONTROL OF THE PROTEIN CONTENT OF THATCHER WHEAT BY NITROGEN FERTILIZATION AND MOISTURE STRESS

1966 ◽  
Vol 46 (2) ◽  
pp. 101-108 ◽  
Author(s):  
W. L. Hutcheon ◽  
E. A. Paul
Keyword(s):  
Soil Moisture ◽  
Growth Factor ◽  
Protein Content ◽  
Spring Wheat ◽  
Nitrogen Fertilization ◽  
Stress Protein ◽  
Moisture Stress ◽  
Nitrogen Supply ◽  
Maximum Efficiency ◽  
Soil Moisture Stress

Experiments are reported in which it was shown that the protein content of spring wheat, grown in the growth chamber, could be effectively controlled by nitrogen supply and soil moisture stress. Protein contents above 16% were obtained only where yields were below the maximum attainable. In the protein range from 11 to 16%, it was possible to increase both protein and yields concurrently; protein contents higher than 16% were realized only where a growth factor such as moisture was below optimum for maximum yields.Moderate moisture stresses resulted in maximum efficiency of water use by the crop. High levels of nitrogen had more influence on the growth of straw than grain; the straw/grain ratio widened with increasing increments of nitrogen

Comparative Study of Size, Total Protein, Fibrinogen and 5-HT Content of Human and Canine Platelet Density Subpopulations

1986 ◽  
Vol 56 (03) ◽  
pp. 288-292 ◽  
Author(s):  
Diego Mezzano ◽  
Eduardo Aranda ◽  
Arnaldo Foradori
Keyword(s):  
Comparative Study ◽  
Protein Content ◽  
Cell Density ◽  
Total Protein ◽  
Unit Volume ◽  
Low Density ◽  
Dense Bodies ◽  
Artifactual Changes ◽  
Platelet Release ◽  
The Difference

SummaryThe size, total protein, fibrinogen and 5-HT content were evaluated in density subpopulations of human and canine platelets fractionated in linear arabinogalactan gradients. The methodology was assessed to ascertain that platelet separation was by density and to discard artifactual changes and platelet release during the procedure. EDTA or PGEi increased the size of human PRP-platelets, but not of dog platelets. In humans, high density (HD) platelets were 1.26 times larger and contained 1.88 times more fibrinogen, 2.23 times more 5-HT and 1.37 times more protein than low density (LD) platelets; in dogs, these density cohorts did not differ in protein content, but LD platelets were 1.29 times larger and had 1.33 times more fibrinogen and 5-HT than HD platelets. These findings suggest that cell density is mostly dependent on the protein content per unit volume of platelets (and not on dense bodies). The differences in fibrinogen and 5-HT content between HD and LD cohorts in humans and dogs may be related to platelet age. The difference in volume between HD and LD platelets in dogs is of uncertain interpretation.

scholarly journals Wheat Grain Protein Content under Mediterranean Conditions Measured with Chlorophyll Meter

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 374
Author(s):  
Marta Aranguren ◽  
Ander Castellón ◽  
Ana Aizpurua
Keyword(s):  
Protein Content ◽  
Stem Elongation ◽  
Field Trials ◽  
Grain Protein Content ◽  
Grain Protein ◽  
Bread Making ◽  
High Quality ◽  
Chlorophyll Meter ◽  
Growing Seasons ◽  
Different Sources

Adequate N fertilisation is crucial to increase the grain protein content (GPC) values in wheat. The recommended level of GPC needed to achieve high-quality bread-making flour should be higher than 12.5%. However, it is difficult to ensure the GPC values that the crop will achieve because N in grain is derived from two different sources: N remobilized into the grain from N accumulated in the pre-anthesis period, and N absorbed from the soil in the post-anthesis period. This study aimed to (i) evaluate the effect of the application of N on the rate of stem elongation (GS30) when farmyard manures are applied as initial fertilisers on GPC and on the chlorophyll meter (CM) values at mid-anthesis (GS65), (ii) establish a relationship between the CM values at GS65 and GPC, and (iii) determine a minimum CM value at GS65 to obtain GPC values above 12.5%. Three field trials were performed in three consecutive growing seasons, and different N fertilisation doses were applied. Readings using the CM Yara N-TesterTM were taken at GS65. The type of initial fertiliser did not affect the GPC and CM values. Generally, the greater the N application at GS30 is, the higher the GPC and CM values are. CM values can help to estimate GPC values only when yields are below 8000 kg ha−1. Additionally, CM values at GS65 should be higher than 700 to achieve high-quality bread-making flour (12.5%) at such yield levels. These results will allow farmers and cooperatives to make better decisions regarding late-nitrogen fertilisation and wheat sales.

scholarly journals Morphogenetic characteristics of three Brachiaria brizantha cultivars submitted to nitrogen fertilization

2013 ◽  
Vol 85 (1) ◽  
pp. 371-377 ◽  
Author(s):  
Marcos F Silva ◽  
Edson M. V Porto ◽  
Dorismar D Alves ◽  
Cláudio M.T Vitor ◽  
Ignacio Aspiazú
Keyword(s):  
Nitrogen Fertilization ◽  
Leaf Blade ◽  
Elongation Rate ◽  
Leaf Elongation ◽  
Brachiaria Brizantha ◽  
Nitrogen Levels ◽  
Appearance Rate ◽  
Leaf Elongation Rate ◽  
Leaf Appearance Rate ◽  
Leaf Appearance

This study aims to evaluate the morphogenetic characteristics of three cultivars of Brachiaria brizantha subjected to nitrogen fertilization. The design was a randomized block in factorial arrangement 4x3; three cultivars of B. brizantha - Marandu, Piatã, Xaraés and four nitrogen levels - 0, 80, 160 and 240 kg/ha, with three replications. The experimental units consisted of plastic pots filled with 5 dm3 of soil. Thereupon the establishment fertilization, varieties were sowed directly in the pots, leaving, after thinning, five plants per pot. Forty-five days after planting, it was done a standardization cut at 10 cm tall. Nitrogen levels were distributed according to the treatments, divided in three applications. The morphogenetic characteristics were evaluated in three tillers per sampling unit and data were submitted to analysis of variance and regression. For all evaluated characteristics there was no interaction between factors cultivar and nitrogen levels, verifying only the effects of nitrogen on the variables leaf appearance rate and phyllochron. The dose 240 kg/ha of N corresponds to the greater leaf appearance rate. Cultivar Marandu shows the higher leaf blade: pseudostem and ratio of leaf elongation rate and elongation pseudostem, which favors higher forage quality.

Responses of the Norwegian alpine Betula nana community to nitrogen fertilization

1997 ◽  
Vol 75 (1) ◽  
pp. 108-120 ◽  
Author(s):  
Jaanus Paal ◽  
Eli Fremstad ◽  
Tõnu Möls
Keyword(s):  
Nitrogen Fertilization ◽  
Nitrogen Supply ◽  
Alpine Tundra ◽  
Soil Parameters ◽  
Alpine Plant ◽  
Betula Nana ◽  
South Central ◽  
Different Types ◽  
Tissue Nitrogen ◽  
Annual Deposition

The effect of nitrogen fertilization on species cover, increment of shrubs, tissue nitrogen, and soil parameters was tested during a 3-year experiment in a low alpine plant community dominated by Betula nana in the Dovre mountains, south-central Norway. The doses used were 1.2 and 6.1 g N/m2, corresponding to 0.72 and 3.6 times, respectively, the annual deposition of nitrogen in southwest Norway. Statistical analysis using SAS ANOVA and GLM procedures were applied to different types of models. The cover of species and growth forms showed no significant response to additional nitrogen supply. The increment of shrubs was not significantly affected by the fertilization, except for the year factor. Incorporation of nitrogen into plant tissue was not evident. No effects were found on soil parameters. Key words: fertilization, alpine tundra, shrubs, nitrogen.

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