Genetic Improvement of Barley (&amp;lt;i&amp;gt;Hordeum vulgare&amp;lt;/i&amp;gt;, L.) in Brazil: Yield Increase and Associated Traits

Rodrigues, O.; Minella, Euclydes; Costenaro, E. R.

doi:10.4236/as.2020.114025

Cited by 8 publications

(11 citation statements)

References 38 publications

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“…fao. org/ faost at/ en/), (b) Argentina (Abeledo et al 2003a, b), Australia (this study), Brazil (Rodrigues et al 2020), Canada (Bulman et al 1993;Jedel and Helm 1994), Italy (Martintello et al 1987), Spain (Muñoz et al 1998, Turkey (Kaya and Akçura 2022), UK (Riggst et al 1981), and US (Wych and Rasmusson 1983). Vol.…”

Section: Uptake and Concentration Of Nutrientsmentioning

confidence: 65%

“…Genetic gain in yield associated with harvest index and grain number, in common with barley elsewhere (Abeledo et al 2003b, c;Bulman et al 1993;Jedel and Helm 1994;Kaya and Akçura 2022;Martintello et al 1987;Muñoz et al 1998;Peltonen-Sainio and Karjalainen 1991;Rajala et al 2016;Riggst et al 1981;Rodrigues et al 2020;Wych and Rasmusson 1983), and in common with wheat (Calderini et al 1999;Sadras and Lawson 2011;Slafer et al 1990Slafer et al , 1994. Harvest index was below 50%.…”

Section: Discussionmentioning

confidence: 99%

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Genetic yield gain between 1942 and 2013 and associated changes in phenology, yield components and root traits of Australian barley

2022

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Background and Aims Barley breeding has increased yield over the last century, but the associated changes in the phenotype are largely unknown. Our aim was to quantify the rate of genetic gain in a collection of Australian barley cultivars representing seven decades of breeding, and the associated changes in the phenotype. Methods Thirteen barley cultivars were grown in the field at Roseworthy and Mintaro, South Australia, to evaluate shifts in phenology, yield, and its components. A subset of five cultivars was grown under controlled conditions to probe for changes in root traits and nutrient uptake. Results Grain yield increased at 16.0 ± 5.3 kg ha−1 yr−1 or 0.43 ± 0.15% yr−1 at Roseworthy, where average yield was 3.1 t ha−1. There was no relation between yield and year of registration at Mintaro, where severe, extended frost disrupted reproduction. Changes in phenology with year of registration were not apparent. The main drivers of yield gain were grain number per m2 and harvest index, with a minor contribution of shoot biomass. Root length density, specific root length, root extension rate, and nutrient uptake per cm of root length increased with year of registration. Conclusions The rate of genetic gain of Australian barley aligned with rates reported for other breeding programs worldwide and compared to 21.0 ± 2.3 kg ha−1 yr−1 for actual yield in Australian farms between 1961 and 2019. Changes in the growth and functionality of the root system highlight the indirect effects of selective pressure for yield and agronomic adaptation.

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Section: Uptake and Concentration Of Nutrientsmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Genetic yield gain between 1942 and 2013 and associated changes in phenology, yield components and root traits of Australian barley

2022

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“…Reports devoted to the investigation of parameters of genetic variation for yield-related traits in barley differ in their experimental data depending on the genotypes involved in the crossing and the environmental conditions of the trial (Madić et al, 2014;Patial et al, 2016;Jalata et al, 2019). Manifestation level of barley productive tillering, as well as the other yield-related quantitative traits is determined by the action of many different genes (Xu et al, 2018), but it is also largely modified by environmental conditions (Russu et al, 2019;Rodrigues et al, 2020;Hu et al, 2021). These aspects significantly complicate the effectiveness of evaluation and selection of desirable individuals in the splitting populations.…”

Section: Discussionmentioning

confidence: 99%

Elucidation of gene action and combining ability for productive tillering in spring barley

Hudzenko

Поліщук

Лысенко

et al. 2022

Regul. Mech. Biosyst.

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The purpose of the present study is to identify breeding and genetic peculiarities for productive tillering in spring barley genotypes of different origin, purposes of usage and botanical affiliation, as well as to identify effective genetic sources to further improving of the trait. There were created two complete (6 × 6) diallel crossing schemes. Into the Scheme I elite Ukrainian (MIP Tytul and Avhur) and Western European (Datcha, Quench, Gladys, and Beatrix) malting spring barley varieties were involved. Scheme II included awnless covered barley varieties Kozyr and Vitrazh bred at the Plant Production Institute named after V. Y. Yuriev of NAAS of Ukraine, naked barley varieties Condor and CDC Rattan from Canada, as well as awned feed barley variety MIP Myroslav created at MIW and malting barley variety Sebastian from Denmark. For more reliable and informative characterization of barley varieties and their progeny for productive tillering in terms of inheritance, parameters of genetic variation and general combining ability (GCA) statistical analyses of experimental data from different (2019 and 2020) growing seasons were conducted. Accordingly to the indicator of phenotypic dominance all possible modes of inheritance were detected, except for negative dominance in the Scheme I in 2020. The degree of phenotypic dominance significantly varied depending on both varieties involved in crossing schemes and conditions of the years of trials. There was overdominance in loci in both schemes in both years. The other parameters of genetic variation showed significant differences in gene action for productive tillering between crossing Schemes. In Scheme I in both years the dominance was mainly unidirectional and due to dominant effects. In the Scheme II in both years there was multidirectional dominance. In Scheme I compliance with the additive-dominant system was revealed in 2019, but in 2020 there was a strong epistasis. In Scheme II in both years non-allelic interaction was identified. In general, the mode of gene action showed a very complex gene action for productive tillering in barley and a significant role of non-genetic factors in phenotypic manifestation of the trait. Despite this, the level of heritability in the narrow sense in both Schemes pointed to the possibility of the successful selection of individuals with genetically determined increased productive tillering in the splitting generations. In Scheme I the final selection for productive tillering will be more effective in later generations, when dominant alleles become homozygous. In Scheme II it is theoretically possible to select plants with high productive tillering on both recessive and dominant basis. In both schemes the non-allelic interaction should be taken into consideration. Spring barley varieties Beatrix, Datcha, MIP Myroslav and Kozyr can be used as effective genetic sources for involvement in crossings aimed at improving the productive tillering. The results of present study contribute to further development of studies devoted to evaluation of gene action for yield-related traits in spring barley, as well as identification of new genetic sources for plant improvement.

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“…The forecast for Brazilian barley production in 2022 is 540,700 tonnes, with an increase of 23.8% compared to 2021 (IBGE, 2022). In Brazil, barley breeding began in the middle of the 20th century, focusing on resistance to diseases, resistance to lodging, tolerance to different environmental stresses, malt quality, and grain yield (Rodrigues et al, 2020). However, the effect of genetic improvement of barley on some physiological attributes (e.g.…”

Section: Introductionmentioning

confidence: 99%

Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traits

Rodrigues

Minella²,

Costenaro³

et al. 2022

Front. Plant Sci.

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Despite recognizing the importance of genetic improvement in the production of barley grains, little information is available on the contribution of phenological development to the genetic improvement of Brazilian barley. Field experiments were carried out between 2011 to 2013, in the absence of biotic and abiotic stresses and with preventive lodging control. Five two-rowed spring barley cultivars, released between 1968 and 2008, were evaluated. Although there was no significant association in the cycle length (Emergence - Anthesis) of the cultivars with the year of release, the genetic improvement increased the proportion of the Doble ridge - Maximum number of spikelet primordia/Maximum number of spikelet primordia - anthesis period to the total time to anthesis. The period between DR-MNP was increased in modern cultivars, to the detriment of the Doble ridge - Maximum number of spikelet primordia period. However, the duration of the period between emergences to the double ridge (vegetative phase) was not altered in the analyzed period. Barley breeding in Brazil did not change the total number of leaves on the main stem but caused an increase in the number of leaves earlier in the development, favoring the high level of tillering. The leaf architecture of modern barley was altered towards a more vertical inclination (erectophilic canopy), allowing the penetration of photosynthetically active radiation into the crop canopy.

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Genetic Improvement of Barley (<i>Hordeum vulgare</i>, L.) in Brazil: Yield Increase and Associated Traits

Cited by 8 publications

References 38 publications

Genetic yield gain between 1942 and 2013 and associated changes in phenology, yield components and root traits of Australian barley

Genetic yield gain between 1942 and 2013 and associated changes in phenology, yield components and root traits of Australian barley

Elucidation of gene action and combining ability for productive tillering in spring barley

Improvement in Brazilian barley breeding: Changes in developmental phases and ecophysiological traits

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