Inheritance of Dwarf and Semidwarf Plant Height in Barley1
- R. G. Sears,
- W. E. Kronstad and
- R. J. Metzger2
Inheritance of dwarfism in barley (Hordeum vulgare L.) was studied in a six parent diallel involving the standard height cv. ‘Larker’ and five short statured lines: OR-SS-2, Minn. 66-102, ‘Indian Dwarf,’ ‘Apam Dwarf’ and Xv 2334-6R. Data from F2 populations and selected F3 progenies indicated that four recessive gene pairs segregating independently account for the differences observed in plant height. Apam Dwarf, Indian Dwarf and Xv 2334-6R appear to have the same two major recessive gene pairs for dwarfness which act in an additive manner. Minn. 66-102 and OR-SS-2 each carry a different single recessive gene pair for semidwarf plant height. Segregation observed in crosses among Minn. 66-102, OR-SS-2, and Apam Dwarf indicated all three parents have different genes for dwarfness. Four genes were identified. They are recessive, additive and are transmitted independently.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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