Publisher: Instytut Hodowli i Aklimatyzacji Roślin—Państwowy Instytut Badawczy (Total: 1 journals)   [Sort alphabetically]

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Plant Breeding and Seed Science     Open Access   (Followers: 4)
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Plant Breeding and Seed Science
Number of Followers: 4  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1429-3862 - ISSN (Online) 2083-599X
Published by Instytut Hodowli i Aklimatyzacji Roślin—Państwowy Instytut Badawczy Homepage  [1 journal]
  • The application of orthogonal contrasts to determine homogeneous groups

    • Authors: Zbigniew Laudański; Dariusz Mańkowski, Leszek Sieczko, Monika Janaszek-Mańkowska
      Abstract: The paper presents a modified approach to analysis of data obtained from experiments carried out according to classical factorial designs. Four examples were discussed in order to present details of proposed method. Modification of the analysis of variance presented here enables more effective use of information on how studied factors affect the means of dependent variable. The specificity of this approach is based on alternative multiple comparison procedure incorporating orthogonal contrasts to determine homogeneous groups.
      PubDate: Thu, 02 Dec 2021 07:27:53 +000
       
  • Variability of selected quantitative traits in new spring barley genotypes

    • Authors: Magdalena Wiśniewska; Anna Fraś, Agnieszka Dmoch
      Abstract: The research included 19 breeding lines and 4 cultivars of spring barley from the preliminary field experiments harvested in 2020 in Radzików. All barley samples were characterized for the content of protein, non-starch polysaccharides (NSP) with soluble (S-NSP) and insoluble (I-NSP) fractions and β-glucan. Additionally, viscosity of water extracts (WEV) was measured to determine the functional properties of the grain. It was the most diverse parameter (CV = 27%) and was significantly correlated with β-glucan content (r = 0.50; for p <0.05). This dependence is shown by the results obtained for the grain of the Avatar cultivar and the RAH 744/19 breeding line, in which the content of β-glucan (5.3% and 4.8%, respectively), as well as the WEV (3.3 mPa.s and 3.0 mPa.s, respectively) were the highest. The lowest content of β – glucan (3.5%) and one of the lowest WEV values (1.4 mPa.s) were observed for KWS Jessie cultivar. Principal component analysis (PCA) showed a substantial impact of the two components PC1 and PC2 on the variability of the analyzed material showing significant variability of the 5 barley genotypes and confirmed the previous results of biochemical analyzes. Our results made it possible to indicate several genotypes that may constitute a source of variability in breeding works aimed at improving the quality of barley. Presented study also show that the grain of some new barley genotypes, with a favorable chemical composition from a fodder and brewing perspective, is a good material for future use in industry.
      PubDate: Tue, 30 Nov 2021 07:11:03 +000
       
  • One- and multivariable characteristics of spring barley (Hordeum vulgare
           L.) cultivars breed at the Nagradowice Plant Breeding Station of the
           Poznańska Hodowla Roślin, studied in experiments in 2017-2018

    • Authors: Dariusz Mańkowski; Dorota Jasińska, Magdalena Anioła, Tadeusz Śmiałowski, Monika Janaszek-Mańkowska, Wioletta M. Dynkowska
      Abstract: The aim of this study was to evaluate the yield variability of spring barley families grown at the Nagradowice Plant Breeding Station of Poznan Plant Breeding against other families studied in years 2017‒2018 in Team Breeding Experiments. Research material included 250 spring barley families cultivated in 2017 and 2018 in 6 locations. Selection of spring barley families for preliminary experiments was based on synthesis of results obtained in inter-plant experiments established in 2016 and 2017 in 5 locations. Combined (due to location) analysis of variance for experimental data was performed for each year and each series of experiments separately. Best Weighted Linear Unbiased Estimators (BWLUE) for the effects of individual sources of variation were included in ANOVA model. Significant effect of location on mean yield was observed in each research year and each series of experiments. Crucial differences were also observed between tested varieties and breeding lines. Moreover, significant interaction between locations and varieties or breeding families was also observed. Self-organising map (SOM) was applied to develop multivariable characteristic of tested families and cultivars of spring barley. Analyses results, i.e. ranking of BWLUE effects as well as SOM segmentation revealed seven breading lines from Breeding Station Nagradowice, which may be considered for further breeding process.
      PubDate: Thu, 18 Nov 2021 00:00:00 +000
       
 
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