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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 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(8): 494-502
DOI: https://doi.org/10.20546/ijcmas.2017.608.064


Genetic Variability Analysis for Grain Yield and its Components Traits in Traditional Rice Varieties (TRVs)
B. Nandini1*, E. Gangappa2, M.P. Rajanna3, P. Mahadevu4, S. Ramesh2 and P.V. Shailaja Hittalmani2
1Seed Unit, UAS, Dharwad-580005, India
2Department of Genetics and Plant Breeding, UAS, GKVK, Bangalore -560065, India
3Zonal Agricultural Research Station, V.C. Farm, Mandya, India
4Department of Genetics and Plant Breeding, College of Agriculture, Mandya, India
*Corresponding author
Abstract:

Three hundred and twenty four Traditional Rice Varieties (TRVs) were collected from different parts of Karnataka and were evaluated for grain yield and its attributes in two seasons (kharif 2011 and summer 2012) at ZARS, VC Farm, Mandya, Karnataka, India. The 14 quantitative traits studied were categorized into growth traits (days to 50% flowering, Plant height, Productive and tillers plant-1), panicle traits (panicle length, spikelet panicle-1, chaffy panicle-1 and spikelet fertility), grain quality traits (grain length, grain breadth and L/B ratio) and grain yield traits (1000 grain weight, straw yield plant-1, harvest index and grain yield plant-1). Substantial variability among the accessions for quantitative traits was recorded. The variability parameters such as mean, range, standardized range, PCV, GCV, h2(bs) and genetic advance in TRVs were estimated. The pattern of genetic diversity was estimated using model based K means clustering approach statistics and formed four distinct clusters. The quantitative traits means and variances differed significantly among the clusters. Cluster I comprised of the maximum number of TRVs (137) and cluster IV consisted of 21 TRVs. The cluster IV followed by cluster II contributed maximum mean values for many traits. These results are discussed in relation to suitable strategies to be adopted for breeding rice varieties for increased productivity.


Keywords: GCV, PCV, Genetic advance and K means cluster.
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How to cite this article:

Nandini, B., E. Gangappa, M.P. Rajanna, P. Mahadevu, S. Ramesh and Shailaja Hittalmani, P.V. 2017. Genetic Variability Analysis for Grain Yield and its Components Traits in Traditional Rice Varieties (TRVs).Int.J.Curr.Microbiol.App.Sci. 6(8): 494-502. doi: https://doi.org/10.20546/ijcmas.2017.608.064