-16- 



the first and s ec on d ; they occurred after about 86 ani 

 110 hours, respectively, ^ith variations that will be 

 noted below. The nvimerical results obtained for each 

 culture are as follows: 



(1) Ntunber of seedlings v/ith shoots 1 era. or 

 more high after about 86 hours. 



(2) Approximate total shoot elongation after 

 about 86 hours • 



(3) Number of seeds germinated after about 

 110 ho\ars, 



(4) Total shoot elongation after about 110 hours. 



(5) Total shoot elongation for the last 24 hours 

 (obtained by subtracting 2 from 4, above ; . 



The number of seeds germinated at the end of the 

 whole period (3, above) may be taken to represent the 

 viability for any ctilture ; if this nwnber be multiplied 

 by 4 the product represents the percentage of germination^ 

 since each cultvire had 25 seeds. 



Each total-shoot -elongation value (2 and 4, abope) 

 divided by the corresponding number of seedlings measiired, 

 gives the average length of shoot for the seeds that 

 germinated in the culture in question. This quotient 

 represents the average grov/th per seed in each case, 

 omitting the seeds that failed to germinate. Finally, 

 since the time periods were not exactly the same for all 



