Genetic Analysis for Quantitative and Quality Characters in Three Single Crosses of Upland Cotton

  • Srinivasan KANNAN Cotton Breeder, Rasi Seeds Private Ltd, Attur, Salem - 636 102, Tamil Nadu
  • Rajashekaran RAVIKESAVAN Tamil Nadu Agricultural University, Centre for Plant Breeding and Genetics, Coimbatore-641 003
  • Mahalingam GOVINDARAJ Tamil Nadu Agricultural University, Centre for Plant Breeding and Genetics, Coimbatore-641 003

Abstract

Gene effects were studied for 12 characters in three crosses of Gossypium hirsutum by six generation mean model to determine the potential for improvement of yield components and fiber quality in upland cotton. Additive genetic variance (gene action) was predominantly operating in the inheritance of boll weight, single plant yield, and lint index. In the presence of epistasis dominance and additive × additive gene effects were observed for boll weight, single plant yield, lint index, ginning outturn, 2.5 percent span length, bundle strength fineness and uniformity ratio. Boll weight, lint index, seed index, ginning outturn, fineness, bundle strength and uniformity ratio were predominantly under the control of dominance and dominance × dominance gene action. Duplicate type epistasis was noticed for all the studied characters and the possible breeding strategies for improvement of lint yield and quality traits were discussed.

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Published
2013-11-30
How to Cite
KANNAN, S., RAVIKESAVAN, R., & GOVINDARAJ, M. (2013). Genetic Analysis for Quantitative and Quality Characters in Three Single Crosses of Upland Cotton. Notulae Scientia Biologicae, 5(4), 450-453. https://doi.org/10.15835/nsb548323
Section
Research article