Fiber Fineness and Maturity as Measured by Image Analysis, AFIS, MANTIS and HVI Methods in Some Egyptian and American Cotton Cultivars

Fiber samples for eight Egyptian and eight American cotton cultivars were measured by Image Analysis, AFIS, Mantis and HVI methods in the laboratories of the SRRC, ARS, New Orleans, Louisiana, USA. Fiber fineness and maturity measurements, i.e. cross section area, perimeter, diameter, circulatory and micronaire value, measured by image analysis technique, AFIS, Mantis and HVI methods proved to be significantly affected by cotton cultivar, whether between or within the Egyptian and the American cotton cvs. (G. barbadense) are finer than the American cotton cvs. (G. hirsutum). Results indicated that the Egyptian cotton cvs. exhibited lower values of cross-section area (107.6μ2), diameter (11.5μ), perimeter (49.3μ) and micronaire reading (3.4) than the American ones, being 158.1, 13.7, 58.8 and 4.9 for cross section area, diameter perimeter and micronaire reading, respectively. On the other hand, the American cotton cvs. showed slightly higher values of circulatory (0.59) than the Egyptian cotton cultivars (0.57). Within the Egyptian cultivars, Giza 45 proved to be the finest cotton cv., while Giza 80 was the coarsest one. Whereas in the American cotton cvs. Stoneville 825 was the finest cultivar and Lengupa was coarsest one. The relationships between the above methods were studied.