Journal of Natural Fibers (Dec 2024)

Fiber Quality of Colored Cotton As a Function of Potassium Fertilization in the Semi-Arid Region

  • Gisele Lopes dos Santos,
  • Silvana Fraga da Silva,
  • Anna Kézia Soares de Oliveira,
  • Ester dos Santos Coêlho,
  • João Everthon da Silva Ribeiro,
  • Elania Freire da Silva,
  • Valécia Nogueira Santos e Silva,
  • Pablo Henrique de Almeida Oliveira,
  • Antonio Gideilson Correia da Silva,
  • Antônio Lourenço Bezerra,
  • Aurélio Paes Barros Júnior,
  • Lindomar Maria da Silveira

DOI
https://doi.org/10.1080/15440478.2024.2351152
Journal volume & issue
Vol. 21, no. 1

Abstract

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ABSTRACTNaturally colored fiber cotton is an essential alternative green and organic for the textile industry, as it does not require chemical dyeing. However, the low availability of potassium during production can directly affect the quality of the fiber. Based on this, this study aimed to evaluate the fiber quality in naturally colored cotton cultivars submitted to potassium fertilization in a semi-arid region. The experimental design was in randomized blocks, with four replications, and the treatments were arranged in split plots. In the plot, the following were allocated: five K rates (0, 60, 120, 180, and 240 kg ha−1 of K2O); and in the subplots, the four colored cotton cultivars (BRS Rubi, BRS Safira, BRS Topázio, and BRS Verde). The results showed that K is involved in the length, uniformity, short fiber index, micronaire index, and reliability index of naturally colored cotton fibers. A longer fiber length of 30.45 mm was obtained at a dose of 240 kg ha−1 of K2O for the cultivar BRS Topázio. In addition, a higher uniformity (84.95%) was achieved with the dose of 240 kg ha−1 of K2O for BRS Verde. The dose of 240 kg ha−1 of K2O reduced (8.62% and 11.28%) the short fiber index in the cultivars BRS Rubi and BRS Safira, respectively.

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