棉 花 学 报 Cotton Science 2006，18(6)：352-56
Partial Correlation Analysis for Fiber Traits of Offspring from Hybrid between Upland Cotton Sumian 12 and J381，J415 with High Quality Introgressed from G.anomalum L. Abstract：Cotton(Gossypium spp) is the world's leading natural fiber crop. However，to meet the needs of the textile industry for the desired combinations of fiber properties still is a big challenge for cotton breeders. Enhancing fiber quality properties may be an effective way of either introgression of new genes or new combinations of existing genes from wild cotton species. Germplasm lines J381 and J415 with the desired combination of fiber properties were developed through introgression from G.anomalum into G. hirsutum during the past research. In the present study，partial correlation analysis was carried out to elucidate the relations among fiber properties，namely，length，strength，micronaire，length uniformity， elongation，short fiber index (SFI)，reflectance degree (Rd)，spinning consistency index (SCI)，brownness ，fiber maturity，and moist-regain at each generation in J381×Sumian 12 and/or J415×Sumian 12. The results showed that there were significant negative relationship between each two of length，strength， length uniformity，Rd and brownness，and between micronaire and SCI，but significant positive between the former five and the latter two.
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