Cucurbita pepo L. Harbuz zvichainy : a 
Cucumis sativus L. Ogirok posivny v= 
Betagvulgaris Le Buryak zvichainy - 
Gomphrena globosa L. Gomphrena golovchasta - 
Chenopodium album L. Loboda bila ia 
Ch. capitatum (L.) 
Asch. Loboda golovchasta - 
Ch. amaranticolor 
Coste et RKeyen. Loboda gigantska - 
Nicotiana tabacum L. Tyutyun spravzhny - 
Tyutyun kleiky - 
Datura Ee Crahod itn L. Durman zvichainy - 
M. glutinosa L. | 
i 
H 
i 
Petunia hybrida Hort. Petunia hybrida 2) Saha 8 | - 
Notes "4" plants susceptible to the virus 
"=" plants not susceptible to the virus. 
*e 
According to literature the host plants of the maize 
mosaic virus are from the Gramineae family (8-10). We have 
tested a number of plants from among these and some other 
families for susceptibility towards the investigated agent. 
The plants were being infected by mechanically injecting 
them with the sap of diseased maize. The findings shown in 
table 1 suggest that susceptible towards the agent are the 
plants from the cereal family alone. Plants susceptible to 
the agent reacted to the infection by symptoms in which the 
leaves turned mosaic, 
To investigate the properties of the maize mosaic 
virus we obtained infective sap from the leaves of the sick 
plants according to common method. The infective sap preser- 
ves its activity on room temperature for about one day. The 
agent can be inactivated after a ten-hour long heating at 
(5) 
