28 



BULLETIN 526, U. S. DEPARTMENT OF AGRICULTURE. 



gained through increased yield of seed cotton. This condition does 

 not exist, however, as shown by the results of determinations made in 

 connection with the present experiments and those previously 

 reported. 



LINT PERCENTAGES. 



Table XXII gives the per cent of lint as determined in samples of 

 seed cotton sent in by five farmers from their respective experiments. 

 Reference to Table I, page 4, will show the locations of these 

 farmers, which fairly represent the general distribution of the experi- 

 ments. One is in south-central Louisiana, one in northeastern 

 Louisiana, one in southwestern Arkansas near the Arkansas- 

 Louisiana line, and two are in North Carolina. The varieties used in 

 these experiments were, respectively, Half-and-Half, Sugar Loaf, 

 Triumph, Prolific (probably King), and Cleveland Big Boll. 



Table XXII. — Percentage of lint in samples of seed cotton taken in five single-stalk 

 culture experiments with cotton conducted in 1915 in Louisiana, Arkansas, and North 

 Carolina. 



Sample. 



R. K. 



Boney. 



John 

 Hebert. 



J. E. 

 Tanner. 



H. D. 



Sloan. 



L.M.San- 

 derson. 



Old method: 



No. 1 



35 

 37 

 35 

 36 

 38 



39 

 37 

 36 

 37 

 32 



35 

 34 

 33 

 33 

 34 



34 

 33 

 33 

 33 

 33 



36 

 34 

 33 

 36 

 33 



33 

 34 

 35 

 32 

 34 



37 

 35 

 36 

 35 

 35 



35 

 35 

 38 

 39 

 37 



36 



No. 2 



37 



No. 3 



37 



No. 4 



39 



No. 5 



37 



Single stalk: 



No. 1 



36 



No. 2 - 



37 



No. 3 . , 



35 



No. 4 



37 



No. 5 



37 







Average: 



36.2 

 36.2 



33.8 

 33.2 



34.4 

 33.6 



35.6 

 36.8 



37.2 





36.4 







Table XXII shows practically no difference in the average percent- 

 age of lint obtained under the different systems of culture. The 

 difference is remarkably small in view of the great differences in per- 

 centage among the individual samples from some of the experiments. 

 The greatest difference in average percentage of lint is 1.2, and this 

 favors single-stalk culture. In three other instances the differences 

 range from 0.6 to 0.8 per cent in favor of the old method. In the 

 remaining instance the average percentages are identical. 



RELATIVE ABUNDANCE OF LINT. 



The percentage of lint in itself is no more a safe basis for compar- 

 ing the effect of different cultural methods than it is for judging the 

 relative value of varieties. 1 The percentage of lint would vary 



1 Cook, 0. F. Danger in judging cotton varieties by lint percentages. U. S. Dept. Agr., Bur. Plant 

 Indus. Cir. 11, 16 p. 1908. 



Meloy, G. S. Lint percentages and lint index of cotton and methods of determination. U. S. Dept. 

 of Agr. Bui. 644, 12 p., 2 fig. 1918. 



