| Autor: |
V. S. Arbuzova, T. T. Efremova, P. Martinek, E. V. Chumanova, O. B. Dobrovolskaya |
| Jazyk: |
English<br />Russian |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Вавиловский журнал генетики и селекции, Vol 18, Iss 4/1, Pp 704-712 (2015) |
| Druh dokumentu: |
article |
| ISSN: |
2500-3259 |
| Popis: |
Parameters of spike productivity were evaluated in plants of populations F2 obtained by crossing the varieties Novosibirskaya 67, Saratovskaya 29, and Puza-4 with the Skle 123-09 line, characterized by the multifloret habit. Skle 123-09 differed significantly from the studied cultivars in spike density, but no significant differences were found in spike length or the number of spikelets per spike. Two-way analysis of variance in F2 hybrids showed that the «spike length» variability character was determined mainly by the genotypic environment and the interaction of the factors «genotype × environment». The variability of the character “number of spikelets” was determined mainly by environmental conditions. This was particularly true for cultivars Saratovskaya 29 and Puza-4, recommended for arid areas. The variability of the resulting «spike density» character was affected by environmental conditions, genotype, and the «genotype × environment» interaction. The examination of the F2 populations revealed plants with fan-shaped spikelets; high grain content, as in Skle 123-09; and the best performance of other spike traits. The selected plants will be used to fix the «multiple florets» character in the parental varieties. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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