The Soviet ruble should be convertible but should not be floated until the economy is strong enough to take the consequences, the Communist Party daily Pravda said this week.

"The convertibility of the ruble is a necessary condition for the integration of our economy into world markets," economist G. Matyukhin wrote in Wednesday's edition of Pravda.But Matyukhin said the Soviet economy was not yet ready for the convertible ruble because it had no experience in fluctuating bank rates.

The Soviet Union, eager for hard currency, has opened up trade opportunities with the West.