Tall 3-dwarfs: oxymoron or opportunity to increase grain yield in sorghum?
| Autor: | Sophie Lefèvre-Arbogast, Alan Cruickshank, Colleen H. Hunt, David Jordan, Barbara George-Jaeggli |
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| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Yield (finance) Context (language use) Plant Science Biology 01 natural sciences 03 medical and health sciences Negatively associated Genetics Sorghum Hybrid business.industry food and beverages Hordeum biology.organism_classification Plant Breeding 030104 developmental biology Covariate analysis Phenotype Agronomy Agriculture Grain yield business Edible Grain 010606 plant biology & botany |
| Zdroj: | Planta. 253(5) |
| ISSN: | 1432-2048 |
| Popis: | Plant height was positively correlated with grain yield across a large set of 3-dwarf sorghum hybrids and production environments in north-eastern Australia. In industrialised countries, plant breeders tend to select for short plant stature in cereals like wheat, barley and rice, but also grain sorghum. This is mainly to prevent stalk lodging and to allow for machine harvesting. However, this counteracts an intrinsic positive relationship between plant height and yield potential often observed in cereals. We used data from multi-environment breeding trials comprising large sets of female sorghum lines from a range of pedigrees in hybrid combination with five different male testers. The hybrids were grown in 22 different rainfed environments in north-eastern Australia, which allowed us to thoroughly examine the relationship between plant height and yield across a range of productivity levels. Covariate analysis showed that in 38 out of the 90 tested relationships, grain yield was significantly (p |
| Databáze: | OpenAIRE |
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