250 



Missouri Agr. Exp. Sta. Research Bulletin No. 8 



Kind of Root 



Location 



of 



Root 



Largest 

 Diameter 



Length 



Tem- 

 pera- 

 ture 



Results 



Myrobolan 

 plum roots.. 



Myrobolan 

 plum roots.. 



Myrobolan 

 plum roots.. 



Myrobolan 

 plum roots. 



Myrobolan 

 plum roots. 



Myrobolan 

 plum roots. 



Myrobolan 

 plum roots. 



Myrobolan 

 plum roots. 



Marianna 

 plum roots. 



Marianna 

 plum roots. 



14 inches be- 

 low surface.... 



2 inches below 

 surface 



2^ inches be- 

 low surface.. 



3 % inches be- 

 low surface... 



4J^ inches be- 

 low surface... 



4^ inches be- 

 low surface.... 



11 inches be- 

 low surface.... 



11 inches be- 

 low surface 



Date of F 



7 inches below 

 surface 



9 inches below 

 surface 



1 in.... 



.7 in. 



.3 in.... 



. 2 in... . 



.3 in 



. 2 in 



.35 in... 



.15 in... 

 reezing, M 



1 in 



.6 in 



6 in. 



12 in. 



6 in... 



-10 



-10 



-10 



8 in... 

 10 in... 



9 in.... 



3 in 



3 in 



arch 20, 1 



2 in... . 



12 in.... 



.-10 



-10 



-10 



-10 



-10 

 913. 



-10 



-10 



All regions very 

 severely i n - 

 jured. 



Cortex injured 

 slightly in first 

 3 in.;cortexand 

 cambium i n - 

 jured slightly 

 next 6 in.; pith 

 injured slightly 

 and cortex and 

 cambium s e - 

 verely in last 3 

 inches. 



Cortex injury in 

 first inch. Cor- 

 tex and cam- 

 bium injury in 

 remainder, 

 severe near ter- 

 minal. 



All tissues in- 

 jured. Injury 

 most severe 

 near terminal. 



All tissues in- 

 jured. Injury 

 most severe 

 near terminal. 



Same as above. 



Same as above. 



Same as above. 



No injury no- 

 ticeable. 



Slight injury to 

 cambium in 

 first 6 inches; 

 all tissue in- 

 jured in re- 

 mainder. 



