Document Type
Conference Paper
Journal/Book Title/Conference
Triticeae
Volume
2nd International Triticeae Symposium
Editor
Richard R-C. Wang
Location
Logan, Utah
Publication Date
6-24-1994
First Page
65
Last Page
69
Abstract
(Triticum aestivum L.) through wide crosses were evaluated in terms of pollen sources, 2,4-D application, embryo rescue and chromosome retention. Pollen sources included Hordeum bulbosum L., Zea mays L., Pennisetum glaucum (L.) R. Br., Sorghum bicolor (L.) Moench, and Tripsacum dactyloides (L.) L. Maize-mediated polyhaploid production was more stable than the other methods because of a lesser genotypic influence on embryo formation. Application of 2,4-D onto wheat after pollination was critical to promote seed setting and embryo formation in all cross combinations. Embryo rescue was necessary at an appropriate embryo developmental stage to obtain plant regeneration. Paternal chromosomes were eliminated by the stage of active growth of the polyhaploid seedlings. Polyhaploid production frequencies ranged between 10 and 20% of pollinated wheat florets, suggesting germ plasm genotypic effects.
Recommended Citation
Inagaki, M. N. and Mujeeb-Kazi, A., "Progress in Polyhaploid Production Techniques of Hexaploid Wheat through Wide Crosses" (1994). Herbarium Publications. Paper 14.
https://digitalcommons.usu.edu/herbarium_pubs/14