International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 6, Issue:11, November, 2017

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(11): 3365-3370

Geographical and Racial Distribution of Restorers and Maintainers on Milo and Maldandi Cytoplasm from Minicore Collection of Sorghum
B. Hari Vara Prasad* and B.D. Biradar
Department of Genetics and plant breeding, University of Agricultural sciences, Dharwad, Karnataka, India
*Corresponding author

To determine the distribution and geographic specificity of sterility maintainers and restorers in Sorghum bicolor (L.), 168 diverse sorghum germplasm accessions representing variation from 26 countries were crossed with a male-sterile lines milo and maldandi cytoplasm. The F1 hybrids were classified as male-fertile or male-sterile based on the seed set on bagged ear heads. Among these, 43 (25.59 %) were classified as strong restorers with > 90 % seedset and 41 (24.40 %) as maintainers with zero seedset in the postrainy season. Maintainers on maldandi cytoplasm represented 16 out of 26 countries but were concentrated comparatively high in India and for restorers distributed in 15 countries. Maintainer and restorers for milo cytoplasm were distributed across globe. Most of the identified restorers and maintainers of milo and maldandi cytoplasm belongs to race of caudatum and its hybrid races like caudatum-bicolor, durra-caudatum, guinea-caudatum etc. These maintainer lines differ from one another in several morphological and agronomic characters such as flowering, plant height, panicle length and grain size. They may prove to be useful sources of material for generating new male-sterile lines. The restorers can be used to produce commercial hybrids.

Keywords: Cytoplasm, Maintainers, Restorers and Races

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How to cite this article:

Hari Vara Prasad, B. and Biradar, B.D. 2017. Geographical and Racial Distribution of Restorers and Maintainers on Milo and Maldandi Cytoplasm from Minicore Collection of Sorghum.Int.J.Curr.Microbiol.App.Sci. 6(11): 3365-3370. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.