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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(8): 629-637
DOI: https://doi.org/10.20546/ijcmas.2018.708.068


Variability in Progenies of Poly Crosses and Station Cross of Sugarcane (Saccharum spp.)
G. Somu1* and T.E. Nagaraja2
1Department of Genetics and Plant Breeding, University of Agricultural sciences, Bengaluru-65, Karnataka, India
2(Plant breeding), AICRP on Sugarcane, Zonal Agricultural Research Station, V.C. Farm, Mandya, India
*Corresponding author
Abstract:

Genetic variability and heritability are useful parameters that can help the breeding during different stages of crop improvement. The success of such programme will largely depend on the extents of genetic variability available in the base population and heritability of the characters under improvement. Therefore, a clear understanding of genetic parameters is of paramount importance to develop a breeding strategy.Proper exploitation of variability in a crop like sugarcane with a complex ploidy and a high level of heterozygosity is a complicated process.The study was undertaken to determine the potential of poly crosses and station cross in sugarcane, obtained by pollinating the female parents Co 94012, Co8371, 86V46 and Co 7201 × Co 99006to generate variants for eight traits and frequency distribution pattern of variants, hence generated. 642 seedlings raised from three poly crosses and one station cross, comprising high sugared commercial varieties were investigated.Left skewed distribution (Skewness<0) was observed in all crosses, thereby indicating that most values are concentrated on the right of the mean. Leptokurtic distributions in progeny of PCII and PC III derived from Co 8371 and 86V46 PC, inferred that distribution of progeny presented higher peaks around the mean compared to normal distributions, which leads to thick tails on both sides. This signified that the most of the seedlings from Co 8371 and Co 94012 performed superior to the population mean.


Keywords: Poly Crosses, Station Cross, Sugarcane (Saccharum spp.)
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How to cite this article:

Somu, G. and Nagaraja, T.E. 2018. Variability in Progenies of Poly Crosses and Station Cross of Sugarcane (Saccharum spp.).Int.J.Curr.Microbiol.App.Sci. 7(8): 629-637. doi: https://doi.org/10.20546/ijcmas.2018.708.068