The Wall of the Cotton Hair


MEASUREMENTS of the dimensions of cross-sections of cotton hairs have been obtained by us at Gîza, in some preliminary studies for technological purposes, of different pure lines of Egyptian cotton. On plotting correlation diagrams between the thickness of the cell wall and the ‘ribbon width’ (the maximum diameter of the collapsed cell tube) we have detected several facts which are of exceptional interest to plant physiology as well as to technology. A characteristic diagram is here reproduced (Fig. 1). FIG. 1.

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  1. 1

    W. L. Balls, "Development and Properties of Raw Cotton", London, 1915, p. 143.

  2. 2

    W. L. Balls, "Growth Fluctuations during the Development of Seed Cotton", Tech. Bull., No. 101. Min. of Agric., Egypt.

  3. 3

    W. L. Balls, "Studies of Quality in Cotton", London, 1928, p. 154. Also Iyengar, R. L. N., and Turner, A. J., "The Weight per Inch of Fibres of different Lengths", Indian Cent. Cott. Comm., Tech. Bull, B, No. 7.

  4. 4

    Pierce, F. T., "Mechanism of Growth in the Cotton Hair", Trans. Faraday Soc., No. 115, 26, part 12, 1930.

  5. 5

    Calvert, M., and Harland, S. C., "An Approximation to the Original Cell Diameter", Shirley Inst. Memoirs, vol. 2, No. 29.

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BROWN, C., SELIM, A. & BALLS, W. The Wall of the Cotton Hair. Nature 127, 742–743 (1931).

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