261 



Series B — Concluded 

 Table 7. Pericarp Punctured at Distal End op Coleoptile 



♦Not so vigorous as control. 

 tRetarded and decidedly weak. 



Table 8. Membranes Lying within the Pedicle Punctured 



Trial 



No. of 

 grains 



50 

 50 

 50 

 50 

 50 

 50 

 50 

 50 



Kerosene 

 treatment 



5 days 

 10 days 

 15 days 

 20 days 

 25 days 

 35 days 

 50 days 

 75 days 



After 

 treatment 



3 da. air 



No. 



germ. 



50 

 50 

 48 

 50 

 32 

 30 

 20 

 



No. in- 

 jured 





 

 40 

 42 

 32 

 28 

 20 



Per ct. 

 germ. 



100 

 100 

 96 

 100 

 64 

 60 

 40 

 00 



% Norm, 

 growth 



100* 

 100* 

 16 1 

 16t 

 00 

 04 

 00 

 00 



*Slig-htly retarded. 

 tRetarded and weak. 



Table 9. Pericarp Removed 



♦Retarded and weaker than control. 



Table 10. Pericarp Removed 



Exposed to dry air 



5 days 

 10 days 

 15 days 

 20 days 

 25 days 

 35 days 

 50 days 

 75 days 



*These seedlings were uniformly weak. It could not be told at the time of observation whether 

 they would recover or not. 



