Methods of Choosing Parental Pairs for Crosses in the Breeding of Self-Pollinating Crops for Yield

Лепехов, С. Б.

doi:10.30901/2227-8834-2017-4-79-89

Cited by 3 publications

(1 citation statement)

References 40 publications

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“…Genotypes WI2291*2/WI2269, WI2291/Roho/WI2269, Rihane, and Harmal (ICARDA) served as female parents, while the cultivar-testers, i.e., Donetskiy8, Odessa-100 (Ukraine), and Saule (Kazakhstan) as male parents. Early maturity and dwarfness served as the main criteria for the selection of female parents, while for male parents, the high grain content, grain size, and tallness (Lepekhov, 2017). Table 3 shows the values of economically valuable traits of parental forms in saline soils.…”

Section: Experimental Sites Breeding Material and Proceduresmentioning

confidence: 99%

Combining Ability Analysis in Spring Barley (Hordeum Vulgare L.) for Yield Traits

TOKHETOVA¹,

Makhmadjanov²,

SAVIN³

et al. 2022

SABRAOJBG

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For assessing the combining ability, the top cross method proved more economical and less laborious compared with the diallel analysis. It also allows the breeder to obtain valuable information about the inbred lines and their hybrids for various traits. In the existing research, determining the combining ability of barley (Hordeum vulgare L.) hybrids took place in two regions of Kazakhstan with contrasting soil and climatic conditions. The additive and non-additive genes played a vital role in determining almost all the traits in barley. Analysis of variance showed varying significance among the barley cultivars and their hybrids and testing sites for the majority of the traits. Analysis of variance also revealed significant differences in general combining ability (GCA) and specific combining ability (SCA) among the parental cultivars and their hybrids in barley. The predominance of additive gene interactions in controlling the traits under environmental conditions of the Aral Sea region indicates the possibility of effective selection already in the F2 generation. However, in the piedmont zone of the Almaty region, the dominant genes managed the traits, and thus, necessary to differentiate the hybrid populations, starting from the first generation, until further selection from several cycles achieved the homozygosis of loci carrying dominant genes. Barley cultivars, Rihane, WI2291/Roho/WI2269 (ICARDA), and the tester, Odessa-100 (Odessa Selection and Genetic Institute, Ukraine), showed greater practical interest and therefore, recommended for use as reliable donors in future breeding programs.

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Section: Experimental Sites Breeding Material and Proceduresmentioning

confidence: 99%

Combining Ability Analysis in Spring Barley (Hordeum Vulgare L.) for Yield Traits

TOKHETOVA¹,

Makhmadjanov²,

SAVIN³

et al. 2022

SABRAOJBG

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Results of the study of collection pea variety samples (<i>Pisum sativum</i> L.) according to agronomic traits

Pislegina,

Chetvertnykh

2023

Аграрная наука Евро-Северо-Востока

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In 2015-2021, 58 collection pea variety samples of various morphotypes and ecological and geographical origin were studied in the field and laboratory conditions of the Falenky Breeding Station (Kirov region) in order to identify sources of breeding valuable traits for the creation of new varieties. For leafy morphotype samples the Krasnoufimskij 93 variety was taken as standard, for leafless morphotype – Falyonskyj usatyj. According to meteorological conditions, the years of the research contrastingly differed: the hydrothermal coefficient (HTC) ranged from 0.82 (2016) to 2.57 (2019). The highest yield on average for the collection was formed in 2015 (HTC = 1.59) – 358±15 g/m2), the lowest in 2021 (HTC = 0.84) – 126±4 g/m2. The studied set of variety samples was mainly represented by medium-ripened (70-75 days on the average over the years of the research), medium-productive (201-250 g/m2) samples with a seed size of 150-250 g. There have been identified genotypes that exceeded the grain yield of standard varieties by 10% or more: Tigra (Germany) – 353 g/m2, Stabil (Austria) – 336 g/m2, Vyatich (Russia) – 308 g/m2, Flora (Russia) – 286 g/m2, G-21594 (Russia) – 283 g/m2, etc. Variety samples with high indicators of productivity elements have been identified. The highest number of fertile nodes (4.4-4.6 pcs.) was noted in leafy samples Verkholuzskaya, Ryabchik (Russia), Segio (the USA); the number of beans (6.0-6.1 pcs.) – in G-21594, Vyatich (Russia.), Ps var vittelinum – (Germany); the number of grains (24.1-27.1 pcs.) – in the variety Verkholuzskaya, G-21594, D-13560 (Russia). A higher seed productivity (5.2-5.6 g) was noted both in leafy morphotypes Grana (the USA), Omega (Moldova) and in leafless morphotype Stabil (Austria). It was found that the studied genotypes had high variability in grain yield, the number of fertile nodes, beans and grains per plant, the mass of 1000 seeds changed slightly. The statistically significant influence of the duration of the growing season on the number of fertile nodes (r = 0.27...0.60) and the number of beans per plant (r = 0.26...0.61) was established.

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Studying the effect of heterosis and predicting the prospects of hybrid spring wheat populations in breeding for productivity and drought resistance

Volkova,

Amunova

2023

Trudy po prikladnoy botanike, genetike i selektsii

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Background. In combination breeding, information about the degree of superiority of hybrids in productivity and drought resistance over their parents in early generations, as well as the possibility of preserving their advantages in subsequent generations, are of great practical interest.Materials and methods. In 2018–2021, 16 hybrid populations of spring bread wheat of the 1st through 4th generations, obtained from intraspecific crosses among parent cultivars, were studied at the Federal Agricultural Research Center of the NorthEast. The hybrids and their parents were tested in the field for productivity and in the laboratory for drought resistance. Inheritance types were determined by the degree of phenotypic dominance of plant characters. Statistical processing of the results was carried out using correlation and variance analyses.Results. Hybrids that demonstrated heterosis in the number of grains per ear had an advantage on this basis in subsequent generations. The inheritance type of the 1000 grain weight did not determine the level of this character in older generation hybrids. There was a change in the type of inheritance for the number of radicles during the transition from normal to stressful conditions. Hybrids that showed heterosis in seedling weight in the control and the experiment were distinguished by higher rates in subsequent generations. A significant negative correlation was found between grain yield and the number of radicles formed with a lack of moisture, and a positive correlation between grain yield and the weight of seedlings. Seven promising hybrid combinations fusing productivity with drought resistance were identified.Conclusion. The analysis of hybrids from early generations according to the degree of phenotypic dominance of the number of grains per ear and number of radicles in the experiment, and the weight of seedlings in the control and the experiment can be quite informative for use in breeding programs.

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Methods of Choosing Parental Pairs for Crosses in the Breeding of Self-Pollinating Crops for Yield

Cited by 3 publications

References 40 publications

Combining Ability Analysis in Spring Barley (Hordeum Vulgare L.) for Yield Traits

Combining Ability Analysis in Spring Barley (Hordeum Vulgare L.) for Yield Traits

Results of the study of collection pea variety samples (<i>Pisum sativum</i> L.) according to agronomic traits

Studying the effect of heterosis and predicting the prospects of hybrid spring wheat populations in breeding for productivity and drought resistance

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