Combining ability studies for heat tolerance traits in bread wheat [<i>Triticum aestivum</i> (L.) em. Thell]

Jat, B.S.; Bharti, Baudh; Ranwah, B. R.; Khan, Shaukeen

doi:10.5958/0975-928x.2016.00136.8

Cited by 2 publications

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“…This is also confirmed by many articles that concur about assessment of the gene action and combining ability for different important traits in bread wheat (Ljubičić et al, 2017;Ayoob, 2020;Abro et al, 2021). Yield and its components under heat and drought-stressed and non-stressed conditions were elucidated (Mwadzingeni et al, 2018;Kamara et al, 2021;Semahegn et al, 2021), under irrigated and rainfed environments (Gupta et al, 2017;Saeed & Khalil, 2017), through several different ecological environments (Sharma et al, 2019), as well as some other morpho-physiological traits (Mohamed, 2019;Ahmad et al, 2020), heat tolerance (Jat et al, 2016), and cellular thermotolerance (El-Rawy et al, 2018). Such a study was conducted in durum wheat (Bajaniya et al, 2019).…”

Section: Discussionmentioning

confidence: 62%

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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Section: Discussionmentioning

confidence: 62%

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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“…Many workers have reported GCA and SCA effects for yield and its component in wheat. 6,7,8 The various studies of plant breeders have to screen either naturally occurring genetic variability which has already been exhausted or should create the same artificially by using conventional method of hybridization. The later involves the selection of probable parents (eco-geo-graphically and genetically diverse) whose hybrid are expected to show better performance as compared to existing agronomically accepted varieties.Thus the main objective of the present study was to identify the best combiners and their crosses on the basis of their general and specific combining ability for yield and its components under sown condition of wheat crop at Agricultural research form of R.B.S.…”

Section: Introductionmentioning

confidence: 99%

Combining Ability Analysis in Bread Wheat (Triticum aestivum)

2018

JECET

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Combining ability studies for heat tolerance traits in bread wheat [Triticum aestivum (L.) em. Thell]

Cited by 2 publications

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

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

Combining Ability Analysis in Bread Wheat (Triticum aestivum)

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