Combining ability and heterosis for fiber color and quality in cotton (Gossypium hirsutum L.)


  • Bülent ÇETİN GAP Agricultural Research Institute, 63040 Şanlıurfa (TR)
  • Osman ÇOPUR Harran University Faculty of Agriculture Department of Field Crops, 63190 Şanlıurfa (TR)



Cotton, Diallel analysis, fiber color properties, inheritance


The interest in organic cotton (colored) has been increased due to high contamination and environmental pollution during fabric dying process. However, detailed studies are needed to determine the genetic and yield related traits. Eight different cotton genotypes (3 green, 3 brown and 2 white) with known fiber color values were used in the current study to record combining ability and heterosis for fiber colour and quality traits. An 8×8 half diallel hybrid population containing 28 F1 hybrids was analysed in the experimental area of GAP Agricultural Research Institute, Şanlıurfa, Turkey. The study including parents and hybrids was established in a randomized complete block design with three replications. The main aim was to examine the genetic structure for studied traits in the populations developed and detecting F1 hybrid vigour. Finding appropriate parent and hybrid combinations for breeding studies was the second major aim of the study. Sufficient variations were noted for the studied traits in hybrid population formed. Genetic parameters such as general and special compatibility abilities, heterosis and heterobeltiosis values were recorded in the formed population. Fiber length (mm), fiber fineness (micronaire), fiber strength (g tex-1), fiber uniformity (%), fiber color values L* (brightness), a* (red-greenness) and b* (yellow-blueness) values were recorded. It was noted that additive genetic effects were important for fiber length, fiber fineness, fiber strength, L*, a* and b* traits.


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How to Cite

ÇETİN, B., & ÇOPUR, O. (2022). Combining ability and heterosis for fiber color and quality in cotton (Gossypium hirsutum L.). Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 50(2), 12782.



Research Articles
DOI: 10.15835/nbha50212782