71 



supervision of a Slalion rcprcscnlalivc. An equal 

 amount of seed was planted on each plot. 



The ('Xi)eriTnenfer Avas re([uested lo thin the cotton 

 in the usual way, leaving as nearly as i)ossible a per- 

 fect stand and the same nund^er of plants on each 

 row. After the second cultivation or "dirling the cot- 

 ton", no more plants were to be destroyed by hoein;j 

 or plowing a request not carefully complied with in 

 every experiment. 



About the middle of June a representative from the 

 Station visited each experiment and made a careful 

 count of all plants, both diseased and healthy, and 

 l)ulled up all dead or nearly dead plants. On subse- 

 ([uent visits only the dead or nearly dead plants were 

 pulled up and counted. The counts were made about 30 

 days apart throughout the growing season. 



The ])lants that were not badly attacked or that had 

 partly recovered are not included in the nundjer of 

 dead or nearly dead plants. The wide diHerence be- 

 tween the number of i)lants indicated by 100 percent 

 of a stand of one variety taken as a standard and the 

 small nundjer of some other varieties is accounted for 

 by the fact that many plants died either from wilt or 

 from "sore shin" (Rhizoctonia) between the time of 

 thinning and of the iirst counting. However, the per- 

 centage of dead or nearly dead plants repr(\sents the- 

 relative loss of the different varieties from wilt. The 

 loss of plants from "sore shin" and cultivation is not 

 taken into the calculation in making u[) the table of 

 losses. 



The |)ieking and weighing of the cotton from each 

 l)lot was done in most cases under the supervision of 

 a representative of the Station. 



All calculations of the yield and percentage of seed 

 and lint are based on the ginning results obtained 

 from those same varieties wIkmi they were included in 

 the variety tests at the Experiment Station. 



The ])ercent of lint of most varieties is an average 

 obtained from several ginnings, and is as follows: 

 Cook r)(SI^, 42. (S percent; Cook .')()7-(). .'JO..") percent; Cov- 

 ington-Toole, 30.1 j)ercent; Dillon. 30.1 percent; Dix- 

 Alili, ;)0.() percent (a long staple variety); Dixie, 35.3 

 percent; Modella, 35.6 percent; Tri-Cook, 11.5 percent; 

 Wood, 35.1 percent. 



The prices of seed and lint used in the table are those 



