Cytogenetics of Triticales. Meiotic Abeirations in Hexaploid Triticales

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B. Ochoa de Suárez
D. Manero de Zumelzú
R. Macchiavelli

Abstract

Cytological stability was studied in hexaploid triticales through observations of meiotic aberrations (univalents in Ml and micro nuclei in Tetrads). Meiotic irregularity counts were repeated after 5 years; during this period the material was sown consecutively. The cultivars analyzed were: Cachirulo, 6 I'A 204; Triticale 0205; Triticale 0204 and Rosner. The observations were made in CMP and the statistical analysis was carried out using the Differences of Proportions Test. It is concluded that to analyze meiotic stability it is not necessary to determine laggard frequencies. Of the 5 cultivars studied, Triticale 0205 is the only one cytologically stable.

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How to Cite
Cytogenetics of Triticales. Meiotic Abeirations in Hexaploid Triticales. (1987). AgriScientia, 5(1), 35-44. https://doi.org/10.31047/1668.298x.v5.n1.919
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Articles
Author Biographies

B. Ochoa de Suárez, National University of Córdoba

Adj. Prof. Biologist and Agronomist, respectively, Head of T.T.P.P., Chair of Genetics, Faculty of Agricultural Sciences, National University of Córdoba.

D. Manero de Zumelzú, National University of Córdoba

Adj. Prof. Biologist and Agronomist, respectively, Head of T.T.P.P., Chair of Genetics, Faculty of Agricultural Sciences, National University of Córdoba.

R. Macchiavelli, National University of Córdoba

1st Assistant Agronomist, Chair of Statistics and Biometry, Faculty of Agricultural Sciences, National University of Córdoba.

How to Cite

Cytogenetics of Triticales. Meiotic Abeirations in Hexaploid Triticales. (1987). AgriScientia, 5(1), 35-44. https://doi.org/10.31047/1668.298x.v5.n1.919

References

Hafiz, H. M., & Khan, M. A. (1978). Meiosis and stability in Triticale. Pakistan Journal of Science, 30, 103-106.

Merker, A. (1971). Cytogenetic investigations in hexaploid Triticale. I. Meiosis, aneuploidy and fertility. Hereditas, 68, 281-296.

Merker, A. (1973). Cytogenetic investigations in hexaploid Triticale. II. Meiosis and fertility in F1 and F2. Hereditas, 73, 285-290.

Sapra, V. T., & Heyne, E. G. (1973). Meiosis and pollen viability in hexaploid Triticale. Crop Science, 13, 301-302.