EFFECT OF TEMPERATURE ON PHYSICAL PROPERTIES AND SOME CHEMICAL CONSTITUENTS OF COTTON FIBERS | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 23, Volume 77, Issue 1, March 1999, Page 317-329 PDF (3.46 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.1999.326613 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| SALWA A. ABDEL-REHIM; MOHAMED A. ABDEL-AZIZ | ||||
| Cotton Research Institute, Agricultural Research Centre, Giza, Egypt | ||||
| Abstract | ||||
| Five commercial cotton cultivars of the two Egyptian cotton categories, i.e., Extra-long staple (Giza 76, Giza 77 and Giza 70) and long-staple cottons (Giza 75 and Giza 80) were used in this study. From each cultivar, samples of fibers of three levels of micronaire reading (low, medium and high) were obtained and subjected to four different temperature treatments (0, 50, 100 and 200oC). The results obtained showed that reflectance percent (Rd%), fiber length at both 50% and 2.5% S.L., fiber strength at zero and 1/8 gauge length, fiber strength, uniformity ratio, fiber elongation and fiber wax content were significantly decreased as the temperature degrees increased while; degree of yellowness (+b) and fiber sugar content were significantly increased. The severe effect of different temperature treatments were more pronounced on cotton fibers of low micronaire reading. Fiber length uniformity ratio did not follow a constant trend of increasing or decreasing. Micronaire reading was not affected by different temperature treatments. | ||||
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