obsolete positive regulation of mRNA cleavage (obsolete GO:0031439)
activation of mRNA cleavage
narrow
stimulation of mRNA cleavage
narrow
up regulation of mRNA cleavage
exact
up-regulation of mRNA cleavage
exact
upregulation of mRNA cleavage
exact
OBSOLETE. Any process that activates or increases the frequency, rate or extent of mRNA cleavage.