14 



THE CONTROL OF COTTON WILT AND EOOT-KNOT. 



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Z-/ 

 2-2 

 2-5 



4-3 

 4-5 

 4-6 



4-6 



Fig. 11.— (Second Year.) Two increase plats, Nos. 2 and 4, arc planted from seed saved the first year. The 

 7 indivichial selections are planted in a lilock surrounded by the increased plats, as indicated. The 

 roguing of the increase plats and progeny rows is done the same as the first year. After careful inspection 

 in the fall, 3 progeny rows are selected (indicated by "x"), and from these, 20 individual selections are 

 made, as indicated. The remainder of the selected progeny rows are picked by themselves, ginned, and 

 compared for wilt resistance, yield, and lint percentage, with the result that 2 are saved for the next year's 

 increase plats, namely Nos. 2 -2 and 4-8. In the same manner the 20 individual selections are ginned and 

 compared, and 10 finally saved for further work. 



/Vo 2-2 



P/fOG£A/y /?ot^s 



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<^ — <^ — s-<^ 



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X 

 X 



//^C/f£>tS£ Plat 

 /Vo.4-6. 



lA/fG£ F/£ID £/?0/^ //VC/!'£/15£ /i/t7S AbS- 2 ^lA/O ^ 



Fig. 12.— ( TUri Ytar.) The seed from progeny rows Xos. 2-2 and 4-S of the second year arc planted m 2 

 increased plats and at one end of these, as indicated, are planted the 10 individual selections finally saved. 

 The seed from the 2 increase plats is used to plant a large adjacent field for seed purposes. These seed are 

 designated " registered seed." The same methods of roguing and individual selection are continued in 

 this and subsequent years. 

 [Cir. !):i] 



