ГЕНЕТИЧЕСКИЙ АНАЛИЗ КОЛИЧЕСТВЕННЫХ ПРИЗНАКОВ У ИНБРЕДНЫХ ЛИНИЙ ОЗИМОЙ РЖИ (Secale cereale L.) В ДИАЛЛЕЛЬНЫХ СКРЕЩИВАНИЯХ

Гончаренко, А. А.; Крахмалев, С В; Макаров, А. В.; Ермаков, С. А.

doi:10.15389/agrobiology.2015.1.75rus

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“…With regard to polygenic traits in winter rye, the hybrid offspring obtained from the crossing of population varieties will already split in the F1 generation [1]. According to the literary data, yield inheritance in simple intervarietal F 1 hybrids occurs according to the dominance type of the best parent, as well as according to the overdominance type (heterosis) [7,8,9]. Being closely associated with plant regeneration after overwintering, winter resistance in intervarietal F1 hybrids was inherited according to an intermediate type [10], a heterotic effect and the dominance of more winter-hardy parental forms were also noted [7,10].…”

Section: Introductionmentioning

confidence: 99%

“…According to the literary data, yield inheritance in simple intervarietal F 1 hybrids occurs according to the dominance type of the best parent, as well as according to the overdominance type (heterosis) [7,8,9]. Being closely associated with plant regeneration after overwintering, winter resistance in intervarietal F1 hybrids was inherited according to an intermediate type [10], a heterotic effect and the dominance of more winter-hardy parental forms were also noted [7,10]. In the inheritance of the weight of 1000 grains, cases of intermediate inheritance and deviation towards the maternal form were noted [11].…”

Section: Introductionmentioning

confidence: 99%

“…In the inheritance of the weight of 1000 grains, cases of intermediate inheritance and deviation towards the maternal form were noted [11]. When crossing varieties contrasting by the weight of 1000 grains, a large graininess was dominating in F1 [7].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of economic traits’ inheritance of winter rye at intraspecific hybridization

et al. 2021

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Intraspecific hybridization in winter rye selection (Secale cereale L. ssp. cereale) is a source of intrapopulation genotypic variability with the possibility of using the effect of interpopulation heterosis. The inheritance of the crop yield, the regeneration degree after overwintering and the weight of 1000 grains in reciprocal and back winter rye F1 intervarietal hybrids was established. Different types of inheritance prevailed in reciprocal and back crossings. The regeneration inheritance and the weight of 1000 grains had a specificity. Traits’ overdominance prevailed in reciprocal crossings (45% of hybrids). The yield of reciprocal hybrids was inherited mainly according to the overdominance type (68% of the hybrids), the weight of 1000 grains - according to the intermediate type (50%), regeneration - according to the overdominance type and transitionally - equally (36% each). Intermediate traits’ inheritance prevailed in back crossings (62% of hybrids). The rarest type of traits’ inheritance was complete dominance of the best parent (2 hybrids). 4 F1 hybrids with the greatest overdominance in yield, regeneration, weight of 1000 grains were allocated. The degree of true and competitive heterosis of reciprocal F1 hybrids in terms of yield was determined. The level of true heterosis of F1 hybrids in terms of yield varied within 6-123%. Economically significant competitive heterosis in terms of yield was established in 7 F1 hybrids.

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Section: Introductionmentioning

confidence: 99%