THE BEHAVIOUR OF ALTERED MALE STERILE LINES IN PEARL MILLET

Abstract

Five male sterile AxB combinations involving alternate B lines (81A x 3383B, 81A x pb 305 B, 3383A x 81B, pb 302A x pb 305B, pb 403A x pb 405B) were chosen and nine altered A lines were developed by transferring the genome of alternate B lines at 50 per cent and 75 per cent levels. Studies on the altered A lines indicated the possibility of altering the morphological expression of a A line by changing B lines. The differences between the original A lines and altered A lines were found to be significant. This may be due to the interaction of the genome of the alternate B line with the genome of original A line. For example, the altered A lines of 81A flowered earlier than the original A line and the difference was significant (81A x 3383B). The choice of appropriate b lines for altering A lines appeared to be very important: Transfer of genome from one B line to another A line at 50 per cent level appeared to be effective in improving the morphological expression and thus F1 sterile lines could be profitably utilised in developing three-way crosses.

DOI

https://doi.org/10.29321/MAJ.10.A01285

Pages

634 - 636

Creative Commons

Copyright

© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

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