scholarly journals Production characteristics of different malting barley genotypes in intensive nitrogen fertilization

Genetika ◽  
2010 ◽  
Vol 42 (2) ◽  
pp. 323-330 ◽  
Author(s):  
Miroslav Malesevic ◽  
Djordje Glamoclija ◽  
Novo Przulj ◽  
Vera Popovic ◽  
Sasa Stankovic ◽  
...  

Two-year trials have been conducted in Technological Research Center in Zajecar. Research objects were six malting barley genotypes. The experimental crop was top dressed with the following amounts of nitrogen: 40, 60, 80 and 100 kg ha-1. The control variant was not top dressed. The obtained results showed that the genotypes reacted significantly to the increased amounts of nitrogen by changing their production characteristics and seed quality. In addition, the genotypes demonstrated certain varietal differences. A new genotype, Premijum, was highest yielding and it had the lowest total proteins in the grain. The genotype NS-525 had the highest 1000-grain weight (46.8 g). The effect of nitrogen on the studied characteristics depended on N quantity applied. Increasing amounts of nitrogen decrease positive effects on spike length, number of grains per spike, 1000-grain weight and yield. However, the protein content in grain kept increasing to the highest nitrogen dose, which lowered the quality of malting barley. The highest yield was obtained by applying 80 and 100 kg ha-1 of nitrogen, depending on the year of study.

2020 ◽  
Vol 18 (Suppl.1) ◽  
pp. 47-54
Author(s):  
B. Dyulgerova ◽  
N. Dyulgerov

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.


2015 ◽  
Vol 24 (1) ◽  
pp. 121-127 ◽  
Author(s):  
Tadeusz Zderkiewicz

In the period 1967-1968 the influence of the stage of ripeness of fruits of diand triploid cumin on the oil content was investigated. The quantity and quality of the oil was found to improve with ripeness. The highest 1000-grain weight fell to the milk ripe stage, and then decreased with advancing ripeness. The highest oil content was noted in fruits harvested in the milk and dough stages. Comparison of the physico-chemical constants of the oil at both stages with the standards of Polish Pharmacopeia III showed it to meet all requirements.


Author(s):  
O. O. Skrypnyk ◽  
O. Yu. Leonov ◽  
T. P. Shyianova ◽  
K. Yu. Suvorova ◽  
Z. V. Usova

Purpose and objectives. To evaluate the effect of sorting seeds by size on their quality indicators: germination energy, laboratory germinability and 1000-grain weight. Materials and methods. The experiments were carried out in the experimental field of the Plant Production Institute named after V.Ya. Yuriev of NAAS in accordance with the field experimentation method in 2016–2018; 26 winter bread wheat lines and varieties were studied. The varieties and lines were grown in variety trial experiments; the plot area was 10 m2. Seeds were separated on sieves of a laboratory separator RLU-3; the 1000-grain weight was measured; the laboratory germinability and germination energy were determined. Results and discussion. When winter bread wheat seeds are sorted on sieves, they are separated into fractions with various 1000-grain weights. The separated fractions of winter wheat seeds have different sowing qualities. The 2.5 x 20 mm seeds and 2.8 x 20 mm seeds are of the best quality (germination energy, germinability). It was found that in 2016–2018, the germination energy, laboratory germinability and 1000-gain weight changed depending on the growing conditions. They were the highest in 2017. The varieties with a high 1000-grain weight have been identified: Doskonala, Pryvablyva, Smuhlianka, and Haiok. The highest germination energy and germinability were intrinsic to varieties Yednist, Harmonika and Bunchuk. Yednist (93.3%), Harmonika (94.3%), Metelytsia Kharkivska (94.5%), Bunchuk (94.7%), Alians (93.3%), Podolianka (92.5%), Patriotka (93.6%), Zapashna (93.3%), Dyvo (93.7%), Doskonala (93.6%), Krasa Laniv (94.0%), Smuhlianka (93.1%), and Erythrospermum 408-13 (93.7%) had a high germinability of small seeds (2.2 x 20 mm). To clean these varieties, especially in years with low seed yields, it is recommended to use seeds of the standard size (2.2–2.5 x 20 mm). Conclusions. The relationships between the grain size and sowing qualities of seeds have been established. Separation of seeds is an effective technological method allowing for selection of top-quality seeds


2009 ◽  
Vol 89 (2) ◽  
pp. 221-226
Author(s):  
M. J. Edney ◽  
D. Beswitherick

Canadian malt barley in the past was downgraded on visual detection of any immature barley kernels. The quality of malt made from immature barley has been investigated in the past, but conclusions were inconsistent. The factor, though, was removed from Canadian malting barley grades in August 2008. The present study used a different approach to investigate the effects of immature kernels on malt quality. A series of commercial malt barley samples were adulterated with varying levels of immature kernels. Samples were visually graded, malted and analysed for malt quality. Immature kernels were found to affect malt quality, but only significantly when samples contained 2% or more immature kernels. Soluble protein, which increased in samples with more immature kernels, was the quality factor of greatest concern. Canadian malt is often criticized for high soluble protein, which can lead to an unacceptably high wort colour. The research supported downgrading of samples on account of immature kernels, but only when the level was 2% or higher. However, grain inspectors consistently downgraded the experimental samples with as low as 0.2% immature kernels, as per the previous grade determinants. The new grade schedule has no tolerances for immature kernels, but this study supported reinstatement of a tolerance level of 2% immature kernels. Key words: Green seed, quality, malt, soluble protein, extract, wort colour


2019 ◽  
Vol 11 (6) ◽  
pp. 12
Author(s):  
Can Wang ◽  
Lingbo Zhou ◽  
Guobing Zhang ◽  
Yan Xu ◽  
Xu Gao ◽  
...  

The aim of this study was to determine the effects of sowing time and growing density on the yield and quality of grain in waxy sorghum (Sorghum bicolor L. Moench). The main plots were two sowing time: early sowing (5 April) and late sowing (20 April), and the subplots were three growing densities: 0.8 × 105, 1.1 × 105, and 1.4 × 105 plants/ha. Results showed that sowing time and growing density had significant effects on grain yield and grain quality of waxy sorghum cultivar Hongliangfeng 1. Grain yield, plant height, spike length, culm diameter, grain number per spike, grain weight per plant, 1000-grain weight, protein content, starch content, and amylopectin content were reduced by a delay of sowing time, while the tannin content and amylose content were increased by a delay of sowing time. Grain yield, plant height, spike length, culm diameter, grain number per spike, grain weight per plant, 1000-grain weight, protein content, starch content, and amylopectin content increased and then decreased with the increase of growing density, while the tannin content and amylose content decreased and then increased with the increase of growing density. These results hinted that appropriate sowing time and growing density are key cultivation measures to ensure high yield and good quality in waxy sorghum production.


1998 ◽  
Vol 130 (3) ◽  
pp. 307-315 ◽  
Author(s):  
M. J. CONRY

The effect of four seed rates on the grain yield, grain N content and grain size of Blenheim malting barley sown on two dates in the spring was tested on three different soils over a 4-year period (1991–94). The four seed rates (120, 160, 200 and 240 kg/ha) gave mean plant populations of 222, 308, 374 and 430 plants/m2, respectively, for the first sowing date (February to early March) and 235, 340, 405 and 470 plants/m2 for the second sowing date, 3–5 weeks later (late March to mid-April). The earlier-sown crops generally gave greater yield, lower grain N and smaller amount of screenings, but in two of the twelve experiments, the first sowing gave lower yield and greater grain N.The influence of seed rate on yield and quality depended on sowing date. The three higher seed rates (160, 200, 240 kg/ha) had little influence on yield or grain N, irrespective of sowing date, and there was no significant difference in yield between the lowest (120 kg/ha) and the three higher seed rates when the crop was sown in February and early March. But when the crops were sown in April, the lowest seed rate (120 kg/ha) gave the lowest yield in all seven comparisons and gave significantly reduced yield in three of the seven comparisons. There was a significant increase in grain N in three of the comparisons. Seed rate had little effect on grain screenings or 1000-grain weight. Soil differences did not influence the effect of seed rate on the yield and quality of the grain.


1938 ◽  
Vol 28 (3) ◽  
pp. 472-502 ◽  
Author(s):  
H. Hunter ◽  
H. O. Hartley

1. The high grain-yielding capacity and low total nitrogen content of predominant British varieties of barley, in conjunction with high ear survival at harvest, are discussed.2. The results of a series of quantitative comparisons in which increased tillering was promoted by the application of nitrate of soda at various phases of plant development, and similarly when tillers were removed at various stages, were examined.3. It was shown that the effect of nitrogen on the yield and quality of the grain depends upon the time in relation to the stage of plant development at which it was applied; the early applications enhanced the yield without detriment to the quality of the grain, whilst the later applications did not increase the yield but increased the total nitrogen content, and consequently reduced the malting quality of the grain.4. The increase in yield was obtained primarily by an increase in the number of surviving tillers and to a less extent by an increase in yield of grain per ear; the latter was in some cases accompanied by an increase in 1000-grain weight. High ear survival in varieties such as those under examination may consequently be regarded as an index of high yield of grain and of low total nitrogen content.5. The removal of tillers resulted in increased total nitrogen content and increased 1000-grain weight in the grain of the main stem; the former was not affected by the stage of development of the plant at which abscission was made, but the highest value of the latter was obtained when the abscission was made before flowering.6. The relation of 1000-grain weight and nitrogen content was discussed, and it was shown that high 1000-grain weight may exist with both high and low total nitrogen. Although the 1000-grain weight is an hereditary attribute it is subject to considerable fluctuation and cannot by itself be usefully employed as an index of nitrogen content, and consequently of malting quality, in either an inter- or intra-varietal sense.


2021 ◽  
Vol 13 (Volume 13, Issue 2) ◽  
pp. 129-133
Author(s):  
B. Dyulgerova ◽  
D. Valcheva ◽  
D. Valchev ◽  
M. Babulicova ◽  
M. Havrlentova

Abstract. The objectives of this study were to estimate the heritability of yield and yield-related traits and to compute the correlation of grain yield with yield-related traits among the spring barley genotypes. The experiment was laid out in a complete block design with three replications in the Institute of Agriculture – Karnobat, Bulgaria during two consecutive years 2017 and 2018. Genotypes differed significantly for all the traits studied. Genotypic coefficients of variation were lower than the corresponding phenotypic coefficients in all the traits studied, indicating a considerable influence of the environment on the expression of the traits. Estimates for broad-sense heritability ranged from 0.65% for grain number per spike to 44.20% for 1000-grain weight. Moderate heritability coupled with relatively high genetic advance as a percent of the mean was found for 1000-grain weight suggesting a reliable possibility for improvement through selection. A significant and positive correlation between grain yield and number of spikes per m2 and grain weight per spike was found. Results of path analysis showed that grain weight per spike and number of spikes per m2 exhibited the highest direct effects on grain yield. The number of spikes per m2 was highly associated with grain yield but mostly influenced by environmental effects. The grain weight per spike should be prioritized for selection of superior spring barley genotypes under conditions of Southeast Bulgaria due to its highest direct effect on grain yield combined with higher heritability than that of grain yield. Moreover, it must be considered that the grain weight per spike had relatively low heritability in a broad-sense so the selection should be practised in later generations in replicated trials.


Genetika ◽  
2014 ◽  
Vol 46 (1) ◽  
pp. 59-73 ◽  
Author(s):  
Novo Przulj ◽  
Vojislava Momcilovic ◽  
Jasmina Simic ◽  
Milan Mirosavljevic

Quality of barley consists of precisely defined grain quality attributes (grain weight, grading, grain protein concentration, etc.) and malt quality attributes (extract, viscosity, Kolbach index, etc.). Barley quality attributes are quantitatively inherited and greatly affected by environmental factors such as temperature, available water, nitrogen fertilizer and soil type. The main objective of this study was to determine the effects of genotype and growing conditions (year) on grain and malt quality attributes in barley grown under field conditions in the Pannonian zone. The eight spring two-row barley varieties were studied during a seven growing seasons (1998-2004) on the location Novi Sad (45?20'N, 15?51'E, 86 m asl). The growing season predominantly affected variation of the all studied grain and malt quality attributes of spring barley where its percentage of variance was 35.2%, 20.2%, 32.5%, 25.4%, 30.9%, 31.2%, and 38.5% for grain weight (GW), grading (GRA), grain protein content (GPC), viscosity (VIS), Kolbach index (KOL), Hartong number (HAR) and extract content (EXT), respectively. The interaction of GxE comprised of 28.4%, 64.5%, 38.2%, 54.0%, 39.6%, 41.2% and 23.7% of variation for GW, GRA, GPC, VIS, KOL, HAR and EXT, respectively. The genetic component of variance ranged from 11.1% for GRA to 35.0% for EXT. The heritability was the lowest for GRA-0.54 and the highest for EXT-0.91. Across growing seasons GW ranged from 39.6 to 46.1g, GRA from 76.7 to 91.1%, GPC from 12.1 to 13.5g 100-1g dm, VIS from 1.44 till 1.61m.Ps, KOL from 32.5 to 42,9%, HAR from 31.9 to 45.9VZ 45?C and EXT from 76.3 to 80.3% dm. Out of seven growing seasons EXT was acceptable in four ranging from79.2 to 81.4% dm. Although growing conditions in the Pannonian zone are less favorable for malting barley production in relation to western Europe it does not exclude malting barley production with acceptable quality in the Pannonian zone environments. The varieties Scarlett and Viktor performed quite acceptable quality in the Pannonian zone and may be recommended for commercial production in this region for malt industry.


Author(s):  
B. Dyulgerova ◽  
N. Dyulgerov

Abstract. The aim of this study was to assess the variation in grain quality traits among mutant lines of winter feed barley. Nine mutant lines derived from the advanced breeding line Kt3029 and 10 mutant lines derived from variety GA-Luttrell along with their parent forms were evaluated. The study was conducted at the Institute of Agriculture – Karnobat during the period 2015-2017. Test weight, 1000-grain weight, the content of protein, starch, lysine, fat, ash, and fibre were determined. Significant differences between the mutant lines and the parent forms for the studied traits were observed. Significantly higher protein content compared to parent was found in the grain of mutant lines 22/1-5, 22/2-10 and 22/1-12 from line Kt3029 and 26/1-1, 26/1-3 and 26/2-11 from variety GA-Luttrell. The grain of mutant line 26/2-12 had the best combination of protein and starch. Mutant lines 22/1-11 and 22/1-12 from Kt3029 and 26/1-1, 26/2-1 and 26/2-12 from variety GA-Luttrell showed a good combination between protein content and 1000-grain weight. Those mutant lines can be included in the breeding program for the development of varieties with improved feed quality.


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