GrainGenes Reference Report: PBR-122-283
Reference
PBR-122-283
Title
Inheritance of tolerance to zinc deficiency in barley
Journal
Plant Breeding
Year
2003
Volume
122
Pages
283-284
Author
Genc Y Shepherd KW McDonald GK Graham RD
Abstract
Summary: Barley (Hordeum vulgare L.) is often grown on alkaline zinc (Zn)-deficient soils where reductions in yield and grain quality are frequently reported. Currently, the use of Zn-based fertilizer along with Zn-deficiency-tolerant genotypes is considered the most thorough approach for cropping the Zn-deficient soils; however, developing or breeding genotypes with higher Zn efficiency requires a good understanding of the inheritance of tolerance to Zn deficiency. This study was conducted to determine genetic control of this trait in barley. Two parental cultivars ('Skiff', moderately tolerant; and 'Forrest', sensitive), 185 F2 plants, and 48 F2-derived F3 families from this cross were screened to determine inheritance of tolerance to Zn deficiency using a visual score of deficiency symptoms. The segregation ratios observed indicated that greater tolerance to Zn deficiency in 'Skiff' compared with 'Forrest' at the seedling stage is controlled by a single gene with no dominance. The results also indicate that visual scores are useful for genetic analysis of tolerance to Zn deficiency
Keyword
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: PBR-122-283
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||