M. MITRA 23) 
The above table shows a low proportion of successful infection and in these 
cases penetration was slight. Rice may almost be considered to resist the 
attack of maize Helminthosporium though sometimes spots are formed under 
laboratory conditions. 
TABLE V. 
Cross-enoculations on bajra. 
No. of ‘ 
No. Date Sree a d Control aoe REMARKS 
ions 
1 29-11-19 20 1 
0% 
No infection on this plant took place. 
TABLE VI. 
Cross-inoculations on wheat. 
No. of | No. of | 
No. of |. No. of 
inocula- | 7°. inocula- | | Control 
No. | Date ions eee: feral lle cae F Control infected)| REMARKS 
on leaves| 7% | on ears | ECte 
1/ 19-120] 12 12 i 
2| 31-1-20 7 4 1 
3 6-2-20 10 10 i 
4 3-29-91 12 9 5 5 1 | The leaves and ears 
of same plants were 
~ inoculated. 
Total | 41 35 5 5 87% 
Maize Helminthosporium can infect wheat easily. Out of 46 inoculations 
made, 40 were successful. The infected leaves became straw-coloured and the 
spots gradually increased in size and ultimately killed the leaves. 
A good 
deal of spore formation took place on leaves and on the ears inoculated, 
