Comparison Of Yield and Fiber Properties by Correlation, Biplot and Cluster Analysis in Some Cotton (Gossypium Hirsutum L.) Hybrids

Cotton is the most important fiber crop. Seed cotton yield, ginning outturn, lint yield, some fiber quality parameters and adaptation capability of eleven hybrid (F5-6) cotton genotype were assessed in this study at Antalya/Türkiye conditions. The study was conducted in a randomized block design with three replications in 2017 and 2018. The level and significance of the relationships between genotype-traits and traits were determined by correlation, biplot and cluster analysis. Resulting, hybrid lines which 1102 for seed cotton yield and fiber yield, 1008 for seed cotton yield, ginning outturn and fiber yield, 1019 and 1103 for all the characters and Gloria cultivar for fiber parameters were significant. In addition, hybrids which line 1115 for seed cotton yield, fiber yield, spinning consistency index and fiber maturity, lines 1005, 1006, 1101, 1102, 1105 and Sure Grow 125 cultivar were found insignificant due to their high short fiber content. The fiber yield showed significant and positive correlation with seed cotton yield, ginning outturn, fiber maturity and fiber fineness, which were not affected by the year difference. The spinning consistency index determined by the combination of a plurality of fiber properties, it has always been found to have very important and positive correlation with fiber length, fiber strength and fiber uniformity index, negligible but positive with ginning outturn, whereas short fiber index was always significantly and negatively correlated.