Indian Central Cotton Committee Technological Laboratory Variations in the properties of the Cotton fibre in relation to its position on the surface of the seed May 1932

The lint was obtained from the following regions of the seed : (i) the apex or the pointed end ; (2) the base or the butt end ; (3) the right flank ; (4) the left flank and (5) the hairs removed in gentle combing by hanthe combed hairs." The position of the point of rupture in a single hair break was also examined by mounting fibres between two types of eyelets one made of brass and the oth [...] From the study of the graphs and the analysis of the test results the following conclusions have been drawn :- 1. The frequency distribution of fibre-length is approximately symmetrical and normal not only for fibres taken from the whole seed but also for fibres taken from different regions of the seed. [...] It is pointed out that in selecting new strains the cotton breeder should pay attention not only to the absolute values of the fibre-properties but also to the percentage difference between the mean values of the properties of hairs growing on the base and the apex of the seed. [...] 3 in which the ordinates of the curve - - - showing the distribution for the base fibres are less than those of the curve for apex fibres on the left-half and continuously in advance of those on the right-half. [...] 7. Percentage Distribution of 1. itE-es of different grades of Strength.26 Variations in the Properties of the Cotton Fibre in Relation to It will be observed that all the frequency distributions are asymmetrical— the degree of asymmetry being more prominent for the basal than for the apical fibres and that there is practically no difference in the frequency distributions of fibres taken from the