Efficiency of Selection in Breeding Indeces in the Contrasting Conditions of the Trans-Urals

Maltseva, L.T.; Filippova, E.A.; Bannikova, N.Y.; Kataeva, N.V.

doi:10.31563/1684-7628-2020-54-2-32-38

Cited by 2 publications

(4 citation statements)

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“…The variety has successfully passed the test and was included in the State Register of the Russian Federation for VI, IX and X regions in 1995. The varieties protected by this gene were widespread, but by 2016-2017 (rust epiphytotia), new virulent races appeared and the LrTR gene lost its effectiveness [9]. Against this background, Aist 45 variety showed resistance and tolerance to brown and stem rust, powdery mildew, which significantly increased its yield (table 8).…”

Section: Resultsmentioning

confidence: 99%

A new variety of spring soft wheat aist-45 as a result of a wide environmental test

et al. 2021

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The assessment of a new variety of spring soft wheat Aist 45 was given based on the analysis data of yield, plasticity, grain quality, and disease resistance. The studies were carried out at the Kurgan Scientific Research Institute of Agriculture, a branch of the Ural Federal Research Center of the Ural Branch of the Russian Academy of Sciences. A test in breeding nurseries (2011-2020) showed an excess of yield over mid-season and mid-late standards (4.4 and 2.8 cwt/ha). In the ecological test under the KASIB (Kazakstan-Siberian network for improving spring wheat) program of 52 varieties in 16 points of Russia and Kazakhstan (2017-2018), Aist 45 variety had a high rating in terms of yield; according to the results of technological analysis, it showed good potential in the content of protein (15.7-16, 3%) and gluten in grain (31.6-32.4%), attributed to valuable wheat. When evaluated for resistance to brown rust against an artificial background in the seedling phase, Aist 45 was assigned to the resistant type (VIZR and VNIIF). Against the infectious background of the RIBSP of South Kazakhstan, the variety showed resistance to septoriosis and pyrenophorosis. Susceptible to dust brand. The variety is capable of forming a stable yield in drought stress conditions and epiphytotic development of brown and stem rust.

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Section: Resultsmentioning

confidence: 99%

A new variety of spring soft wheat aist-45 as a result of a wide environmental test

et al. 2021

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“…В литературных источниках встречаются сведения, что при отборе по канадскому индексу теряется часть засухоустойчивых генотипов, и отмечается, что для условий Западной Сибири, где типичной считается весенне-летняя засуха, этот индекс непригоден (Kocherina, Dragavtsev, 2008;Maltseva et al, 2020). В последние годы, по нашим наблюдениям, в Тюменской области продолжительность и сроки наступления засушливых периодов в течение вегетации растений изменились, что позволяет использовать канадский индекс.…”

Section: результаты исследования и их обсуждениеunclassified

“…По мнению Л. Т. Мальцевой с соавторами (Maltseva et al, 2020), вариабельность селекционных индексов яровой мягкой пшеницы зависит как от генотипа, так и от условий произрастания. В условиях, благоприятных по влагообеспеченности, для отбора продуктивных генотипов можно применять мексиканский индекс, канадский индекс, индекс линейной плотности колоса, индекс продуктивности, кроме индекса интенсивности.…”

Section: Introductionunclassified

“…Селекционные индексы косвенно отражают устойчивость к фитопатогенам за счет массы стебля и массы зерна с колоса. Авторами установлена средняя связь урожайности с индексом интенсивности (0,514-0,596), мексиканским индексом (0,535) и индексом продуктивности (0,520-0,644) (Maltseva et al, 2020).…”

Section: Introductionunclassified

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Comprehensive evaluation of spring barley mutants according to their yield components

Belozerova,

Bazyuk,

Bome

2024

Trudy po prikladnoy botanike, genetike i selektsii

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Background. The need to increase the genetic diversity of barley (Hordeum vulgare L.) is determined by its value and cultivation scope, which is especially important in the context of the changing climate.Material and methods. The study was carried out in 2021 and 2022 at the experimental site of the Lake Kuchak biostation located in Nizhnetavdinsky District, Tyumen Province (57°20ʼ57.3”N, 66°03ʼ21.8”E). Mutant forms were obtained by treating seeds of accessions ʻZernogradsky 813ʼ, Dz02-129 and C.I. 10995 with solutions of the chemical mutagen phosphemide at concentrations of 0.002% (2·10–3 М) and 0.01% (1·10–2 М). The mutants of the fifth (M5) and sixth (M6) generations were evaluated for a set of traits valuable for breeding in comparison with the original forms and reference cultivars ʻAchaʼ and ʻAbalakʼ. The main productivity characters were analyzed in the laboratory, and breeding indices were calculated (ear potential index, Canadian index, ear linear density index, Mexican index, plant productivity index, and Finnish-Scandinavian index).Results and conclusion. Most of the studied mutants under moisture deficit and elevated temperature conditions were superior to the original forms in their productivity characters. Mutant plant samples with stable manifestation of those traits, irrespective of the growing season conditions, were selected. Assessment of the genotype–environment interaction using breeding indices made it possible to identify promising mutants for inclusion in breeding programs. Correlation analysis helped to identify indices closely related to grain yield: Canadian index (r = 0.85), Mexican index (r = 0.76), and plant productivity index (r = 0.70). They can be recommended for selection of stress-resistant barley forms.

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Efficiency of Selection in Breeding Indeces in the Contrasting Conditions of the Trans-Urals

Cited by 2 publications

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A new variety of spring soft wheat aist-45 as a result of a wide environmental test

A new variety of spring soft wheat aist-45 as a result of a wide environmental test

Comprehensive evaluation of spring barley mutants according to their yield components

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