Genetics of the signs of rice clusters

Дзюба, В. А.; Esaulova, Lyubov; Чухирь, И. Н.; Korotenko, Tatyana; Зеленский, А. Г.

doi:10.31367/2079-8725-2019-61-1-44-48

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…Establishing the type (character) of quantitative traits' inheritance in intervarietal crossings gives an idea of the expressiveness of the dominant allele. The inheritance type is determined at the hybridological analysis stage of F1 plants and parental forms using the degree of phenotypic dominance in the F 1 offspring [6]. 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].…”

Section: Introductionmentioning

confidence: 99%

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%

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

et al. 2021

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The study of chinese rice samples under the conditions of the Rostov region

Kostylev

Краснова

Aksenov

2020

Zernovoe hozâjstvo Rossii

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Rice is the most important food crop on the Earth. The development of new productive rice varieties for the conditions of the south of Russia and specifcally the Rostov region is possible after careful study and use of collection material from other regions of the planet in the breeding work. Genetic varietal diversity of samples from various countries is the basis for breeding study aimed at improving rice productivity. The purpose of the study was to study 15 collection Chinese rice samples, analyze some quantitative traits, and select the best ones for further breeding. The samples were studied in the Proletarsky district of the Rostov region. The varieties “Yuzhanin” and “Boyarin” were taken as the standard varieties. In the study of Chinese rice samples according to their morphological and biological traits there has been identifed a signifcant diversity. The vegetation period “sprouting-fowering” ranged from 85–130 days; the trait “plant height” varied from 63.3 cm to 101.7 cm; the trait “length of a panicle” ranged from 15.7 to 21.7 cm; the trait “1000-kernel weight” varied from 16.3 to 34.0 g; the trait “number of spikelets per panicle” ranged from 79 to 158 pieces; the trait “fertility” was from 86.8 to 98.3%. There has been identifed a positive correlation between “plant height” and length of a panicle, 1000-kernel weight, kernel number per panicle, and fertility. Kernel weight per panicle has also correlated with these traits. For future breeding work there have been selected 6 rice samples that could mature well in the south of the Rostov Region, namely “Lyaonin 1”, “Lyaonin 5”, “Lyaonin 8”, “Lyaonin 10”, “Lyaonin 12” and “Lyaonin 15”. There has been carried out a hybridization of samples with the early ripening variety “Kontakt”.

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Genetics of the signs of rice clusters

Cited by 2 publications

References 4 publications

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

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

The study of chinese rice samples under the conditions of the Rostov region

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