[Vol. 10 



352 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 











Organism 



Medium 



Days 

 incubation 



Per cent 



N 



- 

 Aspergillus niger 



P+ 



4 



4.85 





p+ 



35 



3.45 



Sphaeropsis malorum 



p— 



35 



4.16 



H ™ 



KNO, 



35 



3813 





P+ 



8 



5.65 





P+ 



12 



5.08 





P+ 



18 



4.48 





P— 



8 



5.28 





P— 



12 



5.32 





P— 



18 



5.08 





(NH 4 ),SO, 



8 



7 11 



Diplodia natalensis 



(NH^O, 



12 



6 50 





(NH«),SO, 



18 



6 70 





NH4NO, 



8 



5.54 





NH«NO, 



12 



5 57 





NH4NO, 



18 



6 64 





KNO, 



8 



4 60 





KNO, 



12 



4 59 





KNO, 



18 



4 00 



The N content of the fungi is seen to vary with the medium 

 and the duration of incubation. The percentage N in Diplodia 



(NtV;5<X 

 KNOj ■ 



Jd 



Fig. 12 



e consumption; amc 

 Diplodia natalensis. 



decreased with continued incubation on all the media except the 



NH,NO 



3 



which it showed 



This is similar to the 



findings of Terroine and his associates ('22) who worked with 



