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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
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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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Original Research Articles

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.2020.9(10): 1333-1342
DOI: https://doi.org/10.20546/ijcmas.2020.910.160


Selection Parameters for Improving the Seed Cotton Yield and Fibre Quality Traits in American Cotton (Gossypium hirsutum L.)
Gnanasekaran* and K. Thiyagu
Tamil Nadu Agricultural University, Cotton Research Station, Srivilliputtur-626 135, India
*Corresponding author
Abstract:

Information on the effect of different yield components on improvement of yield will be crucial in any selection programme. Thirty four genotypes of American cotton (Gossypium hirsutum L.) were utilized to study the genetic variability and correlation of yield, its components and fibre properties and data recorded were analyzed to understand the relative contribution of different yield components in enhancing the yield and fibre quality. Study revealed high heritability observed for days to first flowering, days to fifty percent flowering, number of monopodia per plant, number of bolls per plant, ginning percentage, upper half mean length, bundle strength, fibre fineness, uniformity index and seed cotton yield. Number of monopodia per plant, number of bolls per plant and seed cotton yield shows high heritability coupled with high genetic advance over mean indicating the preponderance of additive gene action in the inheritance of these traits. Traits such as days to first flowering, days to fifty percent flowering, ginning percentage, ginning percentage, upper half mean length, bundle strength and uniformity index in which high heritability accompanied by low genetic advance was recorded indicates the effect of non-additive gene action. Significant positive association of plant height, number of bolls per plant, boll weight and seed index was observed with seed cotton yield per plant. Association of traits inter se revealed the positive and significant association of number of bolls per plant with seed index; Boll weight with seed index, lint index; seed index with fibre fineness was observed. Path coefficient analysis revealed that days to first flowering, plant height and lint index have positive and very high direct effect on seed cotton yield. Information generated on the relationship between yield components, fibre quality and seed cotton yield will help the crop breeder in enhancing the efficiency of selection.


Keywords: Correlation, G. hirsutum, Variability, Yield components
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How to cite this article:

Gnanasekaran, M. and Thiyagu, K. 2020. Selection Parameters for Improving the Seed Cotton Yield and Fibre Quality Traits in American Cotton (Gossypium hirsutum L.).Int.J.Curr.Microbiol.App.Sci. 9(10): 1333-1342. doi: https://doi.org/10.20546/ijcmas.2020.910.160