The effects of selection for earliness and ear density on grain yield improvement in spring barley (Hordeum vulgare L.)

Euphytica ◽  
1988 ◽  
Vol 39 (S3) ◽  
Author(s):  
A.G. Balkema-Boomstra
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Spring Barley ◽  
Hordeum Vulgare L ◽  
Yield Improvement ◽  
Selection For

Phenological development–yield relationships in spring barley in a subarctic environment

1995 ◽  
Vol 75 (1) ◽  
pp. 93-97 ◽  
Author(s):  
S. M. Dofing
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Developmental Stages ◽  
Spring Barley ◽  
Kernel Weight ◽  
Hordeum Vulgare L ◽  
Early Maturity ◽  
Fill Rate ◽  
Physiological Maturity ◽  
Early Maturing

Barley (Hordeum vulgare L.) producers in northern, marginal agricultural areas require cultivars that are both early maturing and high yielding. However, negative relationships between these two characteristics limit their simultaneous improvement. A better understanding of the relative contribution of the developmental stages to grain yield would assist breeders' selection. This study was undertaken to assess the relationships between patterns of phenological development and grain yield in barley grown in a subarctic environment. Sixteen genetically diverse spring barley cultivars were grown for 3 yr at Palmer, Alaska, and evaluated for grain fill rate, grain fill period, growing degree days (GDD) to heading, GDD from heading to physiological maturity, and GDD from physiological maturity to ripe maturity. Cultivars developed in temperate regions tended to have slower grain fill rates than those developed in subarctic regions. Rapid grain fill rate was associated with high kernel weight, but not with grain fill duration or grain yield. Increasing GDD to heading would result in higher grain yield, while increasing grain fill duration would have little effect. These results indicate that northern-adapted cultivars should have pre-heading periods lasting as long as possible, followed by short grain-fill periods. Simultaneous selection for early maturity and relatively long time to heading is recommended for the development of early-maturing, high-yielding cultivars adapted to northern conditions. Key words: Barley, Hordeum vulgare L., phenology, development, yield

INTERPLOT COMPETITION BETWEEN WHEAT OR BARLEY CULTIVARS OF DIFFERING HEIGHTS

1988 ◽  
Vol 68 (4) ◽  
pp. 1129-1132 ◽  
Author(s):  
R. J. BAKER ◽  
B. G. ROSSNAGEL
Keyword(s):  
Triticum Aestivum ◽  
Hordeum Vulgare ◽  
Grain Yield ◽  
Spring Wheat ◽  
Spring Barley ◽  
Triticum Aestivum L ◽  
Hordeum Vulgare L ◽  
Barley Cultivars

Four trials with 18 triplet combinations of tall, intermediate and short cultivars of spring wheat, and four trials with 18 triplet combinations of one short and two tall cultivars of spring barley, were conducted over 3 yr at Saskatoon to test the hypothesis that differences in height would not cause interplot competition for grain yield. Significant competition between cultivars was detected in two trials with wheat and in one of the barley trials.Key words: Wheat (spring), Triticum aestivum L., barley (spring), Hordeum vulgare L., interplot competition, grain yield

scholarly journals Effect of soil nutrients reserves and level of fertilisation on production parameters of spring barley (Hordeum vulgare L.)

2006 ◽  
Vol 54 (4) ◽  
pp. 91-98 ◽  
Author(s):  
Petr Škarpa
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Spring Barley ◽  
Sandy Soils ◽  
Hordeum Vulgare L ◽  
Grain Number ◽  
The Third ◽  
Production Parameters ◽  
The Difference ◽  
Different Doses

The effect of three different doses of basic fertilisers and a subsequent pre-sowing supplementary fertilisation on production parameters (yield of grain, number of spikes, and thousand grains weight) was evaluated using experimental data obtained within the framework of a one-year pot experiment with spring barley (Hordeum vulgare L.) established at the Department of Agrochemistry and Plant Nutrition, Faculty of Agronomy, Mendel University of Agriculture and Forestry Brno in 2003. Results of statistical analysis indicated that the yield of grain was significantly influenced by different doses of fertilisers especially on sandy soils. As compared with control, the second highest dose of fertilisers (i.e. 83 kg N, 31 kg P and 92 kg K.ha–1) increased the yield by 91.7 % and the third one (i.e. 113 kg N, 43 kg P and 125 kg K.ha–1) even by 124.8 %. This increase in the grain yield was positively affected above all by increasing doses of nitrogen fertilisers. A pre-sowing application of P, K and Mg showed also a positive effect on grain yield not only on sandy but above all on clay soils (as compared with non-fertilised control, this increase ranged from 40.6 to 50.2%). Fertilisation showed also a marked effect on the number of spikes. This factor showed a similar trend as the yield of grain. The thousand grains weight was not significantly influenced on both soil types. This value was increased (by 2.9% to 14.8%) after the application of fertilisers prior to sowing but the difference was statistically non-significant.

scholarly journals The effect of the changed amylose and amylopectin ratio on the selected qualitative parameters in spring barley (Hordeum vulgare L.) grain

2013 ◽  
Vol 61 (3) ◽  
pp. 577-585 ◽  
Author(s):  
Marta Balounová ◽  
Kateřina Vaculová ◽  
Lenka Hložková ◽  
Renata Mikulíková ◽  
Jaroslava Ehrenbergerová
Keyword(s):  
Chemical Composition ◽  
Hordeum Vulgare ◽  
Grain Yield ◽  
Environmental Effects ◽  
Food Production ◽  
Spring Barley ◽  
Chemical Compounds ◽  
Hordeum Vulgare L ◽  
Starch Composition ◽  
Barley Genotypes

In 2008-2011, grain yield and chemical composition were assessed in a set of spring barley genotypes with standard and changed amylose/amylopectin ratio (non-waxy and waxy, respectively) at two locations (Kroměříž, Žabčice). Genotypic as well as environmental effects were important for the variations in contents of chemical compounds. The waxy genotypes had statistically significantly higher levels of β-glucans and protein (6.9% d.m., 12.1% d.m., respectively) than genotypes with the standard starch character (5.4% d.m., 11.5% d.m., respectively). The hull-less waxy genotype KM2619.413.4 was statistically significantly different from all other genotypes in the set due to its highest content of β-glucans (10.80% d.m.). We found statistically significant differences between genotypes divided by the type of grain (hulled vs. hull-less) and also by the starch character (standard vs. waxy) in average starch contents as follows: hull-less genotypes with the standard starch composition (64.8% d.m.) > hull-less waxy genotypes (63.7% d.m.) > hulled genotypes with standard starch composition (61.4% d.m.) > hulled waxy genotypes (60.0% d.m.). Genotypes with elevated grain constituents (higher starch and BG contents) could be important from the point of a prospective use of barley for food production as was already found for example in the hulless waxy genotypes KM2645.412.3.4.6 (63.7% and 8.0%, respectively) and KM2551.469.1-2 (64.1% and 7.0%, respectively).

EFFECT OF DIFFERENT PLOT BORDERS ON GRAIN YIELDS IN BARLEY AND WHEAT

1986 ◽  
Vol 66 (1) ◽  
pp. 45-51 ◽  
Author(s):  
K. W. MAY ◽  
R. J. MORRISON
Keyword(s):  
Triticum Aestivum ◽  
Hordeum Vulgare ◽  
Winter Wheat ◽  
Spring Barley ◽  
Plant Competition ◽  
Triticum Aestivum L ◽  
Hordeum Vulgare L ◽  
Barley Genotype ◽  
Selection For ◽  
Wheat Plot

Ten genotypes of barley (Hordeum vulgare L.) and 10 genotypes of wheat (Triticum aestivum L.) were grown with four types of plot borders (control, same genotype as the plot; unbordered; winter wheat; spring barley/wheat) to study the influence of plot borders on the ranking for yield of cereal genotypes. Plot yields increased as border competition decreased. However, the ranking of the different genotypes was not influenced by the type of plot border, except when a highly competitive barley genotype was used as a border with wheat. It was concluded that the type of plot border was of relatively little importance in selection for yield, as long as the border was not more competitive than the plot.Key words: Barley, wheat, plot borders, yield, plant competition, varietal ranking

scholarly journals Structural Equation Model as a Tool to Assess the Relationship Between Grain Yield Per Plant and Yield Components in Doubled Haploid Spring Barley Lines (Hordeum vulgare L.)

2016 ◽  
Vol 73 (1) ◽  
pp. 63-77 ◽  
Author(s):  
Dariusz R. Mańkowski ◽  
Janusz Kozdój ◽  
Monika Janaszek-Mańkowska
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Doubled Haploid ◽  
Yield Components ◽  
Structural Equation ◽  
Spring Barley ◽  
Equation Model ◽  
Path Model ◽  
Equation Modeling ◽  
Hordeum Vulgare L

Abstract The aim of this study was to describe and characterize the relationships between yielding factors and grain yield per doubled haploid (DH) plant of spring barley as well as relation between yield components and duration of each stage of plant development. To describe these relations structure equation modeling was used. The study included plants of doubled haploid spring barley lines (Hordeum vulgare L.) derived from two-rowed form of Scarlett cultivar. The SAS® system was used to analyze the model of relationships between grain yield per plant and yield components. Our results indicate that the number of spikes per plant and grain yield per spike had a direct and decisive influence on the grain yield of the investigated DH plants of spring barley. Based on the path model analysis it was found that the most important factor determining grain yield per DH plants of spring barley was the number of spikes per plant and the duration of tillering and shooting stages.

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