two,
one.
Ddee plants can make the following types of gametes;
parent can make half dominant D type gametes and other half recessive d gametes. Since both e gametes are recessive, the gametes formed will be 100% e gametes.
therefore the combinations of gametes possible are De and de.
In ddee plants, both d and e are recessive therefore parents can make only gametes with recessive d and e alleles.
therefore gametes produced are of a single type, that is de only.