Influence of Soil Environment en Rootrot of Tobacco 



Plate 8 



AuGUiTl 3 5 7 9 // 13 15 17 19 21 ^3 25 27 29 31 



3b 

 34 

 32 

 30 

 28 

 2b 



to 



AuGl/^Tt 3 5 7 9 II 13 15 n 19 21 23 25 27 29 31 



32 

 30 

 26 



^'^/^ 

 10 

 AUCi/bTl 3 5 7 9 II 13 15 17 l9 21 23 25 27 29 31 



2b 



20 



Id 



76 

 /4 

 12 

 10 



Journal of Agricultural Research 



Vol. XVII, No. 2 



