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ARS Home » Southeast Area » Florence, South Carolina » Coastal Plain Soil, Water and Plant Conservation Research » Research » Publications at this Location » Publication #88458
Title: GENETIC MODIFICATION OF COTTON FIBER PROPERTIES WITH SINGLE AND HIGH VOLUME INSTRUMENTS

Author
item May Iii, Oscar
item JIVIDEN, GAY

Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Abstract Only
Publication Acceptance Date: 1/26/1998
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Progress towards better fiber quality for the textile industry would be facilitated through knowledge of whether choice of fiber property measurement instrument affects direct and correlated response to selection. Heritability and selection response of fiber properties measured with single instrument (Stelometer, fibrograph) and high volume instrument (HVI) were compared in two genetic populations. Additional fiber properties important to processing including neps, short fiber content, and fineness were evaluated. Heritability of micronaire reading, elongation, and length (2.5% span length or upper half mean) was mostly similar whether measured with single instrument or HVI. Heritability of fiber strength was greater when measured with Stelometer than HVI. Despite the disparity in heritability of fiber strength, the genetic subpopulations selected for highest fiber strength by Stelometer or HVI differed little for fiber strength when measured with either instrument. Apparently, selection for fiber strength with Stelometer or HVI instrument about equally modified those properties of fiber responsible for bundle fiber strength. Selection for fiber strength by Stelometer resulted in undesirable increases in short fiber in both populations. Finer fiber resulted from selection for Stelometer strength in one population. Overall, selection for fiber strength when measured with HVI instrument appears adequate.