Avaliação das propriedades das fibras de algodões coloridos naturalmente e ecologicamente corretas cultivados nos assentamentos do município de Guamaré/RN
In this work evaluate the technical characteristics of the fibers grown in settlements Guamaré, colored cotton seeds were donated existing in the Germplasm Bank of Embrapa Cotton. We sought through the breeding program, raising the resistance, fineness, length and uniformity of cotton fibers, as...
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| Định dạng: | Dissertação |
| Ngôn ngữ: | por |
| Được phát hành: |
Universidade Federal do Rio Grande do Norte
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://repositorio.ufrn.br/jspui/handle/123456789/19425 |
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| Tóm tắt: | In this work evaluate the technical characteristics of the fibers grown in settlements
Guamaré, colored cotton seeds were donated existing in the Germplasm Bank of Embrapa
Cotton. We sought through the breeding program, raising the resistance, fineness, length and
uniformity of cotton fibers, as well as stabilize the staining of fibers in the BRS Topaz, BRS
Brown and BRS Green shades and raise their productivity in the field. First, the individual
selections to test progeny seeds, and thereafter the hybridization method followed by family
selection to obtain variations in the color tones were performed. The BRS Topaz, BRS Brown
and BRS Green varieties were produced, analyzed and compared with existing cottons in the
region which is the White cotton. The properties amount of impurities and neps, length, length
uniformity, short fiber content, fineness and tensile strength of the fibers were sized in
Classifiber, NATI, Pressley and Micronaire devices. 10 trials each with 10 tests for all four
fiber types were carried out. The White and Topaz fibers showed greater length (32-34mm)
and greater resistance (7.94 lb/mg and 7.97 lb/mg respectively) and showed finesse with
lower micronaire index 3,71μg/inch and 3, 73μg/inch and a low rate of short fibers. The
results were very promising for the use of genetically improved cotton in the manufacturing
of fabric and yarn in the textile industry. The fibers were brown colored cotton used in the
manufacture of a composite fiber with thermoplastic resin |
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