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Inheritance of awnedness in rice
- Jones, J.W.
- Agronomy journal 1927 v.19 no.9 pp. 830-839
- crossing, Oryza sativa, variety trials, inheritance (genetics), California
- 1. The crosses Butte X Colusa and Colusa X Italian Red were used in the study of the inheritance of awnedness reported in this paper. Butte is a fully awned variety, while Italian Red is partly awned, and Colusa is a variety awnless under all conditions. 2. Awnedness is partially dominant to awnlessness in F1 and the F2 of the Butte X Colusa cross segregated in the phenotypic ratio of nine awned to six partly awned to one awnless plants. The F2 of the Colusa X Italian Red cross segregated in the phenotypic ratio of about three partly awned plants to one awnless plant. 3. The data presented in this paper indicate that two independently inherited genetic factors are involved in the inheritance of awnedness in the Butte X Colusa cross and one genetic factor in the Colusa X Italian Red cross.