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The Journal of Heredity 1989:80(6):460-463
© 1989 The American Genetic Association 80:460-463

research-article

Meiotic Study of Hybrids between Barley (Hordeum vulgareL.) and Triticale (×Triticosecale Wittmack)

H. S. Balyan1, and G. Fedak2

1From the Department of Agricultural Botany, meerut University India
2Cytogenetics Sections, Plant Research Center, Agriculture Canada Ottawa, Ontario

Address reprint requests to Dr. Fedak, Cytogenetics Section, Plant Research Center, Agriculture Canada, Ottawa, Ontario K1A OC6, Canada.

Abstract

A total of five intergeneric hybrids were produced between cultivars of barley (Hor-deum vulgare L.) and triticale (× Triticosecale) cultivars. The frequency of successful hybridization ranged from 2.3% to 6.7% of florets pollinated among 19 cross combinations. The chiasmata frequency in the hybrids ranged from 0.41 to 3.0 per cell. Variations in chiasmata frequencies were attributed to D/R chromosome substitutions and effects of the rye genome in the triticale.


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