Combining Ability Estimates and Heterosis for Yield and Fiber Quality of Cotton in Line x Tester Design

  • Cetin KARADEMIR Ministry of Agriculture and Rural Affairs, General Directorate of Agricultural Research, Southeastern Anatolia Agricultural Research Institute, 21110, Diyarbakir
  • Emine KARADEMIR Ministry of Agriculture and Rural Affairs, General Directorate of Agricultural Research, Southeastern Anatolia Agricultural Research Institute, 21110, Diyarbakir
  • Remzi EKINCI Ministry of Agriculture and Rural Affairs, General Directorate of Agricultural Research, Southeastern Anatolia Agricultural Research Institute, 21110, Diyarbakir
  • Oktay GENCER University of Cukurova, Cotton Research and Application Center, Adana
Keywords: Cotton, line x tester analysis, general and specific combining ability, heterosis

Abstract

The objective of this study was to facilitate the selection in cotton breeding program and estimate the general combining ability (GCA) of the parents and specific combining ability (SCA) of hybrids considered for the development of high yielding and better fiber quality in early generations. The study was carried out at the Southeastern Anatolia Agricultural Research Institute during 2006 and 2007 cotton growing season. Seven cotton lines (which are known as high quality) and three testers (which are known as well adapted and high yielding) were crossed in a line x tester mating design in 2006. Ten genotypes and 21 F1 hybrids were planted in the randomized complete block design with three replications at the same experimental area in 2007. The variance due to GCA and SCA were highly significant for all the traits studied. This indicated that both additive and non-additive gene effects were responsible for the investigated characters. From the trial it was found that in the population, fiber length, fiber fineness and fiber elongation were influenced by additive gene effects while seed cotton yield, fiber yield, ginning percentage, fiber strength and fiber uniformity were influenced by non-additive gene effects. Among the parents FiberMax 832, Teks, Stoneville 453 and MaraÅŸ 92 for seed cotton yield and fiber yield; AÅŸkabat 71 and Giza 45 for fiber length and fiber strength; AÅŸkabat 71 for fiber fineness and fiber uniformity were detected with higher general combining ability. Most of the parents except AÅŸkabat 71, Giza 45 and MaraÅŸ 92 exhibited GCA for ginning percentage. SCA was significant for FiberMax 832 x Stoneville 453, Tam 94 L 25 x MaraÅŸ 92 and Teks x Stoneville 453 hybrid combinations for yield with acceptable fiber quality.

Metrics

Metrics Loading ...

Author Biography

Cetin KARADEMIR, Ministry of Agriculture and Rural Affairs, General Directorate of Agricultural Research, Southeastern Anatolia Agricultural Research Institute, 21110, Diyarbakir
Department of Cotton Breeding and Production.
Published
2009-11-02
How to Cite
KARADEMIR, C., KARADEMIR, E., EKINCI, R., & GENCER, O. (2009). Combining Ability Estimates and Heterosis for Yield and Fiber Quality of Cotton in Line x Tester Design. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 37(2), 228-233. https://doi.org/10.15835/nbha3723071
Section
Research Articles