Yield and Fiber Quality of Five Pairs of Near-isogenic Cotton (Gossypium hirsutum L.) Lines Expressing Fuzzless/Linted and Fuzzy/Linted Seed Phenotypes
2014
Stetina, Salliana R. | Turley, Rickie B. | Bellaloui, Nacer | Boykin, J Clifton
Fuzzless cotton often has traits desirable to the cotton industry, including longer fibers, reduced short fiber content, fewer neps, and improved ginning efficiency. This two-year field study described yield and fiber properties of five pairs of fuzzy and fuzzless near-isogenic lines, developed from fuzzless parent Gossypium hirsutum SA 243 crossed with five fuzzy seeded parents, and processed using saw or roller gins. Yield and fiber data were collected from a two-year field study. The fuzzless lines generally had longer and stronger fibers, lower immature fiber content, higher maturity ratios, reduced short fiber content, higher fineness and micronaire values, and lower lint percentages compared to their fuzzy counterparts. Longer fibers were found in saw ginned samples, and roller ginned samples had higher percentages of short fibers and fewer neps. The fuzzless lines had improved fiber properties useful to the cotton industry, but poor lint yields of only 7% to 14% in these lines limits their utility in breeding.
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