Selection Efficiency for Cotton Fiber Quality in Segregating Material by Different Instruments
Dec 24, 2018

WCRC WCRC2 Breeding

A breeding programme to develop varieties with a wide range of quality parameters to meet various end uses, requires rapid and accurate fiber quality assessment. This paper examines the potential of instruments to provide data for the selection of fiber quality parameters. Segregating genetic material (F2) from five intra-specific crosses was tested for fiber length, fineness, maturity and strength with the Fibrograph, Pressley, Fibronaire, High Volume Instrument (HVI) and Advanced Fiber Information System (AFIS). The variability of the coefficient of variation (CV) served as the criterion for testing the reproducibility and the accuracy of the measurements. The results proved that for length parameters the Fibrograph and for strength the Pressley tester were the most appropriate. The AFIS gave better estimations of fineness and maturity. The use of laboratory instruments for most of the fiber properties is suggested on the basis of these results. Nevertheless the choice may depend on other parameters such as the range of characters measured and cost effectiveness.

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