Agronomic assessment of the durum
| Autor: | G. J. Rebetzke, A. R. Rattey, W. D. Bovill, R. A. Richards, B. J. Brooks, M. Ellis |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Crop & Pasture Science. 73:325-336 |
| ISSN: | 1836-5795 1836-0947 |
| DOI: | 10.1071/cp21645 |
| Popis: | The wheat Green Revolution Rht-B1b and Rht-D1b dwarfing alleles are associated with increased grain yields but also with reduced early growth and seedling emergence, especially if sowing conditions are unfavourable. The gibberellic acid-responsive, mutagen-derived Rht18 dwarfing gene was backcrossed from durum wheat (Triticum turgidum subsp. durum L.) cv. Icaro into tall bread wheat (Triticum aestivum L.) cv. Halberd using phenotypic selection for reduced plant height. The Rht18 allele was confirmed among homozygous BC1F2-derived, F5:7 recombinant inbred lines by using a chromosome 6AS-linked, microsatellite molecular marker (Xwms4608), and then assessed for agronomic performance across multiple field sites ranging in yield from 3.6 to 6.4 t/ha. The Rht18-containing lines were significantly (P |
| Databáze: | OpenAIRE |
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